''Caecum'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of minute sea snails, marine gastropod micromolluscs or

micromollusk A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also ...

s in the family

Caecidae Caecidae is a taxonomic family of very small and minute sea snails or micromolluscs, marine gastropod molluscs in the order Littorinimorpha.Bouchet, P.; Gofas, S. (2013). Caecidae. Accessed through: World Register of Marine Species at http: ...

or blind shells.

Distribution

This genus occurs worldwide in warm and temperate seas. Many species live in sponges, in sandy spots on reefs, or in grassy beds in shallow waters in bays and lagoons. Some species are very common and can be extremely numerous where they do occur, such as the "beautiful caecum"(''Caecum pulchellum''), but even they can be easily overlooked as they are so tiny. Many species are considered to be uncommon, but this assessment may be a result of lack of proper sampling.

Shell description

The shells in this genus, like the others in the family, are very small with a length between 2 mm and 6 mm. Their colour is white to yellowish white and some are almost translucent. They are unusual in that the

teleoconch The gastropod shell is part of the body of a gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. So ...

of the adult shell is a curving tube for most of its length. In the first stage of the shell it is spiral-shaped but soon becomes cylindrical. The shell is sealed with a permanent

calcareous Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an a ...

plug at one end and (when the animal has withdrawn into the shell) with a circular, multispiral, horny operculum at the other end, the shell

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An ...

. The

sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...

is smooth or consists of a close-set, large number of annular ridges.

Feeding habits

These snails feed on one-celled organisms on sand grains or pebbles.

Species

Species in the genus ''Caecum'' include: * † '' Caecum aartseni'' Van Dingenen, Ceulemans & Landau, 2016 * '' Caecum achirona'' (de Folin, 1867) * ''

Caecum adamsi The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The w ...

'' Raines, 2020 * '' Caecum amputatum'' Ch. Hedley, 1894 * '' Caecum amydroglyptum'' Rehder, 1980 * '' Caecum angustum'' de Folin, 1879 * ''

Caecum annulatum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The w ...

'' Emmons, 1858 * ''

Caecum antillarum ''Caecum antillarum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity ...

Carpenter Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, ships, timber bridges, concrete formwork, etc. Carpenters tra ...

, 1858 - Antillean caecum * ''

Caecum arabicum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The w ...

'' Issel, 1869 * ''

Caecum armoricum ''Caecum armoricum'', common name the DeFolin's lagoon snail, is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Caecidae. Description Distribution This species occurs in the following locations: * Eur ...

'' de Folin, 1869 - De Folin's lagoon snail. This species is fully protected in the United Kingdom under the

Wildlife and Countryside Act 1981 The Wildlife and Countryside Act 1981 is an Act of Parliament in the United Kingdom implemented to comply with European Council Directive 79/409/EEC on the conservation of wild birds. In short, the act gives protection to native species (especia ...

since 1992. * ''

Caecum atlantidis ''Caecum atlantidis'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity ...

'' R. B. Watson, 1897 * ''

Caecum attenuatum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The w ...

'' de Folin, 1879 * ''

Caecum auriculatum ''Caecum auriculatum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity ...

'' de Folin, 1868 * ''

Caecum austrafricanum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The w ...

'' Vannozzi, Pizzini & Raines, 2015 * ''

Caecum australe The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The ...

'' Pizzini & Raines, 2011 * '' Caecum bathus'' Pizzini, Raines & Vannozzi, 2013 * † ''

Caecum benhami The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix (anatomy), appendix, to which i ...

'' Goedert & Raines, 2016 * † '' Caecum bensoni'' Goedert & Raines, 2016 * ''

Caecum beaufortensis The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix (anatomy), appendix, to which i ...

'' Ward and Blackwelder 1987 * '' Caecum bimamillatum'' de Folin, 1867 * '' Caecum bimarginatum'' Carpenter, 1859 * '' Caecum bipartitum'' de Folin, 1870 * '' Caecum borneoense'' de Folin, 1867 * '' Caecum bounty'' Pizzini & Raines, 2011 * '' Caecum brasilicum'' de Folin, 1874 * '' Caecum brennani'' Raines & Pizzini, 2009 * '' Caecum breve'' de Folin, 1867 * '' Caecum bucerium'' Golikov, 1967 * '' Caecum californicum''

Dall Dall may refer to: People * Anders Bendssøn Dall (died 1607), Danish Lutheran bishop * Bobby Dall (born 1963), American musician * Caroline Healey Dall (1822–1912), American feminist writer *Clarrie Dall (1887–1953), Australian footballer * C ...

, 1885 - California caecum * '' Caecum calvertense'' Martin, 1904 * ''

Caecum campanulatum ''Caecum campanulatum'' is a species of minute sea snail, a marine (ocean), marine gastropod mollusk or micromollusk in the family (biology), family Caecidae. Description Distribution References

Caecidae Gastropods described in 2005 ...

'' Raines & Pizzini, 2005 * '' Caecum campe'' Pilsbry and Olsson, 1941 * ''

Caecum carolinianum ''Caecum carolinianum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by mar ...

, 1892 - Carolina caecum * † '' Caecum carpenteri'' Deshayes, 1861 * ''

Caecum caverna The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Moolenbeek, Faber & Iliffe, 1989 * '' Caecum chilense'' Stuardo, 1962 * '' Caecum chinense'' de Folin, 1879 * '' Caecum chipolanum'' Gardner, 1947 * '' Caecum cinctum'' Olsson & Harbison, 1953 * '' Caecum circumvolutum'' de Folin, 1867 * '' Caecum clarkii'' P. P. Carpenter, 1858 * ''

Caecum clarum ''Caecum clarum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage ...

'' Lamy, 1910 x de Folin MS/small> * '' Caecum clathratum'' P. P. Carpenter, 1857 * '' Caecum clava'' de Folin, 1867 - club caecum * '' Caecum cocoense'' Sibaja-Cordero, García-Méndez & Troncoso, 2013 * '' Caecum codoceoae'' Gálvez & Huidobro, 2017 * '' Caecum condylum'' Moore, 1969 - bone caecum * ''

Caecum continens ''Caecum continens'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marria ...

'' Van der Linden & Moolenbeek, 2000 * '' Caecum cooki'' Pizzini & Raines, 2011 * '' Caecum cooperi'' S. I. Smith, 1860 - Cooper's Atlantic caecum * '' Caecum corrugatulum'' Carpenter, 1857 * '' Caecum crassum'' de Folin, 1870 * '' Caecum crebricinctum''

, 1864 - many-named caecum * '' Caecum crispum'' A. E. Verrill & Bush, 1900 * '' Caecum crystallinum'' de Folin, 1880 * '' Caecum cubitatum'' (de Folin, 1868) - smooth caecum * ''

Caecum cuspidatum ''Caecum cuspidatum'' is a species of minute sea snail, a marine (ocean), marine gastropod mollusk or micromollusk in the family (biology), family Caecidae. Description Distribution References

Caecidae Gastropods described in 1896 ...

'' Chaster, 1896 * ''

Caecum cycloferum ''Caecum cycloferum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marri ...

'' de Folin, 1867 - fatlip caecum * '' Caecum dakuwaqa'' Pizzini, Raines & Vannozzi, 2013 * ''

Caecum dalli The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The w ...

'' Bartsch, 1920 * '' Caecum danielei'' Pizzini & Raines, 2011 * '' Caecum debile'' A. E. Verrill & Bush, 1900 * '' Caecum delicatulum'' A. E. Verrill & Bush, 1900 * '' Caecum derjugini'' Golikov, 1967 * '' Caecum dextroversum'' P. P. Carpenter, 1858 * '' Caecum digitulum'' Hedley, 1904 * '' Caecum diminutum'' C. B. Adams, 1852 * '' Caecum directum'' Vannozzi, 2019 * '' Caecum donmoorei'' Mitchell-Tapping, 1979 * '' Caecum draperi'' Raines, 2020 * '' Caecum dux'' de Folin, 1871 * '' Caecum eburneum'' C. B. Adams, 1852 * '' Caecum egenum'' Vannozzi, 2017 * '' Caecum elegantissimum'' Carpenter, 1859 * ''

Caecum eliezeri The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Absalao, 1997 * '' Caecum elongatum'' P. P. Carpenter, 1857 *''

Caecum engli ''Caecum engli'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage o ...

'' Nofroni, Pizzini, Oliverio, 1997 * ''

Caecum eunoi ''Caecum eunoi'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage o ...

'' Nofroni, Pizzini, Oliverio, 1997 * '' Caecum exile'' de Folin, 1875 * '' Caecum farcimen'' P. P. Carpenter, 1857 * '' Caecum fijiense'' Pizzini, Raines & Vannozzi, 2013 * '' Caecum firmatum'' C. B. Adams, 1852 * ''

Caecum floridanum ''Caecum floridanum'' is a species of minute sea snail, a marine (ocean), marine gastropod mollusk or micromollusk in the family (biology), family Caecidae. Distribution Description The maximum recorded gastropod shell, shell length is 5.6&nbs ...

'' Stimpson, 1851 - Florida caecum * '' Caecum folini'' Kisch, 1959 * '' Caecum frugi'' Vannozzi, 2019 * '' Caecum galapagoense'' Raines, 2020 * '' Caecum geigeri'' Pizzini & Raines, 2011 * '' Caecum glabellum'' A. Adams, 1868 * '' Caecum glabriforme'' Carpenter, 1857 * '' Caecum glabrum'' (Montagu, 1803) * ''

Caecum gofasi ''Caecum gofasi'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage ...

'' Pizzini & Nofroni, 2001 * '' Caecum granulatum'' Vannozzi, 2019 * '' Caecum greensboroense'' Martin, 1904 * '' Caecum gulosum'' Hedley, 1899 * '' Caecum gurgulio''

, 1858 - windpipe caecum * '' Caecum hemphilli'' Bartsch, 1920 * '' Caecum heptagonum'' (Bartsch, 1920) * '' Caecum heterochromum'' Raines & Pizzini, 2005 * ''

Caecum hyalinum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Vannozzi, 2022 * ''

Caecum imbricatum ''Caecum imbricatum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied ...

, 1858 - imbricate caecum * '' Caecum incisum'' Vannozzi, Pizzini & Raines, 2015 * '' Caecum imperforatum'' Kanamacher, 1798 (''nomen dubium'') * '' Caecum inclinatum'' de Folin, 1869 * '' Caecum infimum'' de Folin, 1867 * '' Caecum inflatulum'' Vannozzi, 2017 * '' Caecum inflatum'' de Folin, 1867 * '' Caecum inhacaense'' Albano & Pizzini 2011 * '' Caecum insculptum'' Carpenter, 1857 * '' Caecum insularum'' Moore, 1969 * '' Caecum intortum'' Vannozzi, Pizzini & Raines, 2015 * '' Caecum japonicum'' (Habe, 1978) * '' Caecum johnsoni'' Winkley, 1908 * ''

Caecum jonatani ''Caecum jonatani'' is a species of minute sea snail, a marine gastropod mollusc or micromollusc in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marria ...

'' Espinosa, Ortea & Fernandez-Garcés, 2007 * ''

Caecum jucundum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' de Folin, 1867 * ''

Caecum knysnaense The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Vannozzi, Pizzini & Raines, 2015 * ''

Caecum kontiki The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The ...

'' Pizzini & Raines, 2011 * ''

Caecum laeve The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' C.B. Adams, 1852 * '' Caecum lapita'' Pizzini, Raines & Vannozzi, 2013 * ''

Caecum laqueatum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' C. B. Adams, 1852 * † '' Caecum larieyense'' Lozouet, Lesport & Renard, 2001 * '' Caecum leilae'' Vannozzi, Pizzini & Raines, 2015 * '' Caecum lightfootanum'' Raines, 2020 * '' Caecum limnetes'' Long, 1972 * '' Caecum limpidum'' de Folin, 1874 * ''

Caecum lindae The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Vannozzi, Pizzini & Raines, 2015 * '' Caecum lineicinctum'' de Folin, 1880 * '' Caecum liratocinctum''

, 1857 * '' Caecum lohri'' Strong & Hertlein, 1939 * '' Caecum loyaltense'' Pizzini, Raines & Vannozzi, 2013 * '' Caecum lucidum'' de Folin, 1867 * ''

Caecum macrum ''Caecum macrum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage ...

'' Van der Linden & Moolenbeek, 2000 * '' Caecum maestratii'' Pizzini, Raines & Vannozzi, 2013 * ''

Caecum magellanicum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The ...

'' di Geronimo, Privitera & Valdovinos, 1995 * '' Caecum malleatum'' de Folin, 1867 * † ''

Caecum mammillatum ''Caecum mammillatum'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marri ...

'' S. V. Wood, 1848 * '' Caecum maori'' Pizzini & Raines, 2006 * '' Caecum maraisi'' Vannozzi, Pizzini & Raines, 2015 * ''

Caecum marginatum ''Caecum marginatum'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marria ...

'' de Folin, 1869 * '' Caecum marmoratum'' de Folin, 1869 * '' Caecum massambabense'' Absalao, 1994 * '' Caecum mauritianum'' de Folin, 1867 * '' Caecum metamorphosicum'' S. Lima, Santos & Absalão, 2013 * '' Caecum mexicanum'' Collins, 1937 * ''

Caecum microstriatum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Pizzini, Raines & Vannozzi, 2013 * † '' Caecum mineuri'' Lozouet, 1999 * '' Caecum mirificum'' de Folin, 1867 * '' Caecum modestum'' de Folin, 1867 * '' Caecum monstrosum'' C. B. Adams, 1852 * '' Caecum moorei'' (Marincovich, 1973) * '' Caecum morgan'' Vannozzi, Pizzini & Raines, 2015 * '' Caecum multicostatum'' de Folin, 1867 * '' Caecum musorstomi'' Pizzini, Raines & Vannozzi, 2013 * '' Caecum nasutum'' Vannozzi, 2019 * † ''

Caecum nemoralis The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The ...

'' Lozouet, 2015 * '' Caecum neocaledonicum'' de Folin, 1867 * '' Caecum neoguineanum'' Vannozzi, 2019 * '' Caecum nofronii'' Vannozzi, 2019 * '' Caecum oahuense'' H. A. Pilsbry, 1921 * '' Caecum obtusum'' Carpenter, 1857 * '' Caecum occidentale'' (Bartsch, 1920) - western caecum * '' Caecum orcutti'' (

, 1885) * '' Caecum paradoxum'' de Folin, 1867 * '' Caecum parvum'' C. B. Adams, 1852 * '' Caecum pascuanum'' Raines & Pizzini, 2005 * † '' Caecum pertenuis'' Laws, 1941 * '' Caecum planum'' de Folin, 1874 * '' Caecum patuxentium'' Martin, 1904 * '' Caecum plicatum''

, 1858 - plicate caecum * ''

Caecum pollicare ''Caecum pollicare'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marria ...

'' Carpenter, 1859 * ''

Caecum praegrande The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The ...

'' Vannozzi, 2017 * '' Caecum profundicolum'' Bartsch, 1920 - deepwater caecum * ''

Caecum properegulare The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Mansfield, 1925 * '' Caecum pulchellum'' Stimpson, 1851 - beautiful caecum * '' Caecum pygmaeum'' C. B. Adams, 1852 * '' Caecum quadratum'' P. P. Carpenter, 1857 * ''

Caecum rapanuiense ''Caecum rapanuiense'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marr ...

'' Raines & Pizzini, 2005 * ''

Caecum regulare ''Caecum regulare'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to ...

, 1858 * '' Caecum rehderi'' Raines & Pizzini, 2005 * ''

Caecum reversum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Carpenter, 1857 * ''

Caecum richthofeni The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' A. M. Strong & J. G. Hertlein, 1939 * '' Caecum rijgersmai'' Jong & Coomans, 1988 * '' Caecum rolani'' Pizzini & Nofroni, 2001 * ''

Caecum rosanum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix (anatomy), appendix, to which i ...

'' Bartsch, 1920 * '' Caecum rostratum'' de Folin, 1881 * ''

Caecum ruggerii The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' Pizzini, 1997 * '' Caecum rugulosum'' Phil, 1836 * '' Caecum ryssotitum'' de Folin, 1867 - minute caecum * ''

Caecum searleswoodii ''Caecum searleswoodii'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by ma ...

'' Carpenter, 1859 * '' Caecum semilaeve'' Carpenter, 1857 * '' Caecum senegambianum'' de Folin, 1870 * ''

Caecum sepimentum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' de Folin, 1868 * '' Caecum shaskyi'' Raines, 2020 * '' Caecum simplicissimum'' Thiele, 1925 * ''

Caecum sinuatum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The ...

'' de Folin, 1867 * ''

Caecum skoglundae ''Caecum skoglundae'' is a species of minute sea snail, a marine gastropod mollusc or micromollusc in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marr ...

'' Pizzini, Raines & Nofroni, 2007 * '' Caecum smriglioi'' Pizzini, Nofroni & Bonfitto, 2008 * '' Caecum someri'' (de Folin, 1867) * '' Caecum spiculum'' Raines, 2020 * '' Caecum striatum'' de Folin, 1875 * ''

Caecum strictum The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined). The wo ...

'' de Folin, 1871 * '' Caecum strigosum'' de Folin, 1868 * '' Caecum subannulatum'' de Folin, 1870 * ''Caecum subaustrale'' Stuardo, 1970 * ''Caecum subconicum'' Carpenter, 1857 * ''Caecum subcylindratum'' Pizzini, Raines & Vannozzi, 2013 * ''Caecum subflavum'' de Folin, 1879 * ''Caecum subimpressum'' P. P. Carpenter, 1857 * ''Caecum subobsoletum'' Carpenter, 1857 * ''Caecum subornatum'' de Folin, 1874 * ''Caecum subspirale'' Carpenter, 1857 * ''Caecum subquadratum'' Carpenter, 1859 * ''Caecum subspirale'' Carpenter, 1857 * ''Caecum subvolutum'' de Folin, 1874 * ''Caecum succineum'' de Folin, 1879 * ''Caecum swinneni'' Nofroni, Pizzini, Oliverio, 1997 * ''Caecum taeniatum'' de Folin, 1869 * ''Caecum tahitianum'' Pizzini & Raines, 2011 * ''Caecum tenue'' Verrill & Bush, 1900 * ''Caecum tenuicostatum'' de Folin, 1881 * ''Caecum tenuiliratum'' Carpenter, 1857 * † ''Caecum tenuistriatum'' O. Boettger, 1869 * ''Caecum teres'' Carpenter, 1857 * ''Caecum textile'' de Folin, 1867 - textile caecum * ''Caecum tornatum'' A. E. Verrill & Bush, 1900 * ''Caecum torquetum'' de Folin, 1867 * ''Caecum tortile''

, 1892 - twisted caecum * ''Caecum trachea'' G. Montagu, 1803 * ''Caecum trindadense'' S. Lima, Santos & Absalão, 2013 * ''Caecum troglodyta'' Moolenbeek, Faber & Iliffe, 1989 * † ''Caecum tumidum'' Carpenter, 1858 * ''Caecum uncinatum'' de Folin, 1867 * ''Caecum undatum'' P. P. Carpenter, 1857 * ''Caecum vanuatuarum'' Pizzini, Raines & Vannozzi, 2013 * ''Caecum varanoi'' Pizzini, Nofroni & Bonfitto, 2008 * ''Caecum variegatum'' de Folin, 1867 * ''Caecum venosum'' de Folin, 1867 * † ''Caecum verai'' Moreno, Peñas & Rolán, 2003 * ''Caecum vertebrale'' Ch. Hedley, 1899 * ''Caecum vicinum'' de Folin, 1870 * ''Caecum virginiae'' Pizzini, Raines & Vannozzi, 2013 * ''Caecum vitreum'' P. P. Carpenter, 1858 * ''Caecum wami'' Raines & Pizzini, 2009 * ''Caecum wayae'' Pizzini & Nofroni, 2001 * ''Caecum zaagmani'' Jong and Coomans, 1988 ; Subgenera brought into synonymy : * ''Caecum (Defolinia)'' Weisbord, 1962: synonym of ''Caecum'' Fleming, 1813 * ''Caecum (Meioceras)'' Carpenter, 1859: synonym of ''Meioceras'' Carpenter, 1859 ;Species brought into synonymy: * ''Caecum abnormale'' Carpenter, 1857: synonym of ''Caecum subspirale'' Carpenter, 1857 * ''Caecum amaltheanum'' Hedley, 1899: synonym of ''Mauroceras legumen'' (Hedley, 1899) * ''Caecum amamiense'' Habe, 1978: synonym of ''Mauroceras amamiense'' (Habe, 1978) * ''Caecum arcuatum'' de Folin, 1867 : synonym of ''

'' de Folin, 1868 * ''Caecum bahiahondaense'' A. M. Strong & J. G. Hertlein, 1939 : synonym of '' Caecum clathratum'' Carpenter, 1857 * ''Caecum bakeri'' (Paul Bartsch, Bartsch, 1920): synonym of '' Caecum dextroversum'' Carpenter, 1857 * ''Caecum berthae'' Lange de Morretes, 1954: synonym of ''Caecum plicatum'' Carpenter, 1858 * ''Caecum biminicola'' Pilsbry, 1951: synonym of ''Caecum plicatum'' Carpenter, 1858 * ''Caecum buccina'' de Folin, 1870: synonym of ''Caecum circumvolutum'' de Folin, 1867 * ''Caecum bucheri'' Parenzan, 1979: synonym of ''Filogranula annulata'' (O. G. Costa, 1861) * ''Caecum butoti'' Jong & Coomans, 1988 : synonym of '' Caecum marmoratum'' de Folin, 1869 * ''Caecum capitanum'' de Folin, 1874: synonym of ''Caecum pulchellum'' Stimpson, 1851 * ''Caecum carmenense'' de Folin, 1870: synonym of ''Caecum circumvolutum'' de Folin, 1867 * ''Caecum carpenteri'' (Bartsch, 1920): synonym of ''

'' Raines, 2020 * ''Caecum cayoense'' Rehder, 1943: synonym of ''Caecum floridanum'' Stimpson, 1851 * ''Caecum clenchi'' Olsson & McGinty, 1958: synonym of'' Caecum cycloferum'' de Folin, 1867 * ''Caecum compactum'' P. P. Carpenter, 1857 : synonym of '' Caecum quadratum'' Carpenter, 1857 * ''Caecum conjunctum'' de Folin, 1867: synonym of ''Caecum pulchellum'' Stimpson, 1851 * ''Caecum contractum'' de Folin, 1870: synonym of ''Caecum bipartitum'' de Folin, 1870 * ''Caecum corneum'' R. W. Dunker, 1875 : synonym of '' Caecum ryssotitum'' de Folin, 1867 * ''Caecum cornucopiae'' (

, 1858) - horn-of-plenty caecum : synonym of ''Meioceras cornucopiae'' Carpenter, 1859 * ''Caecum coronatum'' de Folin, 1867: synonym of ''Caecum imbricatum'' Carpenter, 1858 * ''Caecum coronellum'' Dall, 1892: synonym of ''Caecum cycloferum'' de Folin, 1867 * ''Caecum costatum'' A. E. Verrill, 1872: synonym of ''Caecum cooperi'' S. I. Smith, 1860 * ''Caecum crassicostum'' Gabb, 1881: synonym of ''Caecum floridanum'' Stimpson, 1851 * ''Caecum curtatum'' de Folin, 1867: synonym of ''Caecum pulchellum'' Stimpson, 1851 * ''Caecum decussatum'' de Folin, 1869: synonym of ''Caecum plicatum'' Carpenter, 1858 * ''Caecum dux'' de Folin, 1871: synonym of ''Caecum floridanum'' Stimpson, 1851 * ''Caecum eburneum'' de Folin, 1886: synonym of '' Caecum folini'' Kisch, 1959 * ''Caecum elagans'' Deregaslavtseva, 1891: synonym of ''Caecum trachea'' (Montagu, 1803) * ''Caecum elegans'' Perejoslavitseva, 1831 : synonym of ''Caecum trachea'' (Montagu, 1803) * ''Caecum fasciatum'' de Folin, 1876: synonym of ''Caecum trachea'' (Montagu, 1803) * ''Caecum formulosum'' de Folin, 1869: synonym of ''Caecum imbricatum'' Carpenter, 1858 * ''Caecum fulvum'' Kisch, 1959: synonym of ''Caecum neocaledonicum'' de Folin, 1867 * ''Caecum heladum'' Olsson and Harbison, 1953 - fine-line caecum : synonym of '' Caecum multicostatum'' de Folin, 1867 * ''Caecum heterapex'' T. Habe, 1963 : synonym of ''

'' Lamy, 1910 * ''Caecum hinoidei'' T. Habe, 1978 : synonym of '' Caecum neocaledonicum'' de Folin, 1867 * ''Caecum insigne'' de Folin, 1867: synonym of ''Caecum imbricatum'' Carpenter, 1858 * ''Caecum instructum'' de Folin, 1870: synonym of ''Caecum bipartitum'' de Folin, 1870 * ''Caecum irregulare'' de Folin, 1867: synonym of ''

'' Stimpson, 1851 * ''Caecum legumen'' Hedley, 1904: synonym of ''Meioceras legumen'' (Hedley, 1904) * ''Caecum leptoglyphos'' de Folin, 1881: synonym of ''Caecum textile'' de Folin, 1867 * ''Caecum lermondi'' Dall, 1924: synonym of ''Meioceras nitidum'' ( Stimpson, 1851) * ''Caecum lightfootae'' Pizzini, Nofroni, Oliverio, 1994 : synonym of ''

'' Watson, 1897 * ''Caecum lilianum'' Ch. Hedley, 1903 : synonym of ''

'' de Folin, 1867 * ''Caecum maculatum'' T. Habe, 1963 : synonym of ''

'' de Folin, 1867 * ''Caecum malleatum'' var. ''sublaevis'' de Folin, 1868: synonym of '' Caecum modestum'' de Folin, 1868 * ''Caecum microcyclus'' de Folin, 1879 : synonym of ''

'' de Folin, 1880 (subsequent spelling) * ''Caecum nitidum'' Stimpson, 1851 - little horn caecum: synonym of ''Meioceras nitidum'' ( Stimpson, 1851) * ''Caecum obesum'' A. E. Verrill & Bush, 1900 : synonym of ''Caecum plicatum'' Carpenter, 1858 * ''Caecum orientale'' de Folin, 1868 : synonym of ''Caecum clarkii'' Carpenter, 1859 * ''Caecum phronimum'' de Folin, 1867 : synonym of ''Caecum floridanum'' Stimpson, 1851 * ''Caecum puntagordanum'' Weisbord, 1962: synonym of ''

'' Stimpson, 1851 * ''Caecum putnamense'' Mansfield, 1924 : synonym of ''Caecum johnsoni'' Winkley, 1908 * ''Caecum rotundum'' de Folin, 1868 : synonym of ''Meioceras nitidum'' ( Stimpson, 1851) * ''Caecum saavedrae'' Beltran, 1965 : synonym of ''Caecum auriculatum'' de Folin, 1868 * ''Caecum sardinianum'' de Folin, 1869 : synonym of '' Caecum clarkii'' Carpenter, 1859 * ''Caecum sculptum'' de Folin, 1881: synonym of ''Caecum imbricatum'' Carpenter, 1858 * ''Caecum semitracheum'' S. Brusina, 1865 : synonym of '' Caecum clarkii'' Carpenter, 1859 * ''Caecum smithi'' Cooper, 1872: synonym of Caecum cooperi S. Smith, 1860 * ''Caecum solitarium'' Oliver, 1915 : synonym of '' Caecum maori'' Pizzini & Raines, 2006 * ''Caecum syriacum'' de Folin, 1869: synonym of ''Caecum auriculatum'' de Folin, 1868 * ''Caecum tenue'' A. E. Verrill & Bush, 1900: synonym of ''Caecum armoricum'' de Folin, 1869 * ''Caecum termes'' Heilprin, 1889: synonym of ''Caecum plicatum'' Carpenter, 1858 * ''Caecum tomaculum'' (Weisbord, 1962) : synonym of '' Caecum ryssotitum'' de Folin, 1867 * ''Caecum triornatum'' de Folin, 1870: synonym of ''Caecum bipartitum'' de Folin, 1870 * ''Caecum uvea'' Pizzini, Raines & Vannozzi, 2013: synonym of '' Caecum folini'' Kisch, 1959 * ''Caecum veracruzanum'' Collins, 1937 : synonym of '' Caecum circumvolutum'' de Folin, 1867 * ''Caecum vestitum'' de Folin, 1868 - Vera Cruz caecum: synonym of '' Caecum circumvolutum'' de Folin, 1867 ; Nomen dubium, Nomina dubia : * ''Caecum abreviatum'' de Folin, 1870 * ''Caecum bicinctum'' de Folin, 1870 * ''Caecum gracile'' Carpenter, 1858 * ''Caecum hemisphericum'' de Folin, 1867 * ''Caecum imperforatum'' (Kanmacher, 1798)

References

* Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp * Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). ''European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification''. Collection Patrimoines Naturels, 50: pp. 180–213 * Spencer, H.; Marshall. B. (2009). ''All Mollusca except Opisthobranchia''. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp * Aartsen, J. J. van (1977). Revision of the East Atlantic and Mediterranean Caecidae. - Basteria 41 (1/4): 7-19

External links

Moore, Donald R., ''The Systematic Position of the Family Caecidae (Mollusca: Gastropoda)'' , Bulletin of Marine Science, Volume 12, Number 4, 1962 ,pp. 695-701(7)

Moore, Donald R., ''Ecological and Systematic Notes on Caecidae from St. Croix, U.S. Virgin Islands'', Bulletin of Marine Science, Volume 22, Number 4, December 1972 , pp. 881-899(19)
* Arthur William Baden Powell, Powell A. W. B., ''New Zealand Mollusca'', HarperCollins, William Collins Publishers Ltd, Auckland, New Zealand 1979
Shell-bearing Mollusca: : Caecidae

Malacolog Version 4.1.0 : A Database of Western Atlantic Marine Mollusca

The Paleobiology Database : Classification of the Caecidae

Goedert J.L. & Raines B.K. (2016). First Paleogene Caecidae (Gastropoda: Truncatelloidea) from the northeastern Pacific Ocean and the earliest record for the genus Caecum Fleming, 1813. Proceedings of the Biological Society of Washington. 129: 38-47
File:Caecum auriculatum 001.jpg, ''

'' File:Caecum subannulatum 001.jpg, '' Caecum subannulatum'' {{Taxonbar, from=Q4878190 Caecidae Gastropod genera