''Seguenzia'' 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 sea snails,

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...

s in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through ...

. This genus was named after

Giuseppe Seguenza Giuseppe Seguenza (June 8, 1833 in Messina – February 3, 1889 in Messina) was an Italian naturalist and geologist. Early life Giuseppe Seguenza was born on June 8, 1833, in Italy. Because his father expected him to follow in his footsteps a ...

(1833-1889), the palaeontologist at Messina, Italy.

Description

The thin shell has a turbinate or subtrochoid shape. It is translucent, the outer layer very slight, somewhat nacreous in fresh specimens. There is no epidermis. The shell contains spiral carinations. The upper part of the body whorl is deeply and widely grooved. The

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 ...

is irregular and sinuous behind. The

columella Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the ...

is twisted and abruptly notched below. It has a small tooth-like process. The base of the shell shows a sinus. It is deeply umbilicated or imperforate. The thin operculum is oval, with a subcentral nucleus and with obsolete, numerous concentric lines.

Species

According to the

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific speciali ...

(WoRMS), the following species with valid name are included within the genus ''Seguenzia'' : *''

Seguenzia antarctica ''Seguenzia antarctica'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according ...

Thiele Thiele is a German-language surname. Geographical distribution As of 2014, 78.0% of all known bearers of the surname ''Thiele'' were residents of Germany, 10.9% of the United States, 2.3% of Australia, 2.0% of Brazil, 1.0% of Canada and 1.0% of Sou ...

, 1925 *''

Seguenzia balicasagensis ''Seguenzia balicasagensis'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (accor ...

'' Poppe, Tagaro & Dekker, 2006 *''

Seguenzia beloni ''Seguenzia beloni'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to ...

'' Poppe, Tagaro & Dekker, 2006 *''

Seguenzia cervola ''Seguenzia cervola'' is a species of extremely small deep-water sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae.Rosenberg, G. (2013). ''Seguenzia cervola'' Dall, 1919. Retrieved through: World ...

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 ...

, 1919 *''

Seguenzia chariessa ''Seguenzia chariessa'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia chariessa'' Marshall, 1991. Retrieved through: World Register of Marine Species at ...

'' Marshall, 1991 *''

Seguenzia chelina ''Seguenzia chelina'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia chelina'' B.A. Marshall, 1983. Retrieved through: World Register of Marine Speci ...

'' Marshall, 1983 *''

Seguenzia compta ''Seguenzia compta'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae. Description The translucent and nacreous white shell is usually up to 6.8 mm wide and 6.5 mm high. Di ...

'' Marshall, 1983 *''

Seguenzia conopia ''Seguenzia conopia'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia conopia'' B.A. Marshall, 1983. Retrieved through: World Register of Marine Speci ...

'' Marshall, 1983 *''

Seguenzia costulifera ''Seguenzia costulifera'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia costulifera''. Retrieved through: World Register of Marine Species at http://www. ...

Schepman Mattheus Marinus Schepman (17 August 1847 – 19 November 1919) was a Dutch malacologist. He was one of the foremost collectors of mollusc shells in the Netherlands, and was also high on the overall list of European collectors. Dutch collecto ...

, 1909 *''

Seguenzia dabfari ''Seguenzia dabfari'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to ...

'' Poppe, Tagaro & Dekker, 2006 *''

Seguenzia dautzenbergi ''Seguenzia dautzenbergi'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia dautzenbergi'' Schepman, 1909. Retrieved through: World Register of Marine Speci ...

, 1909 * † ''

Seguenzia donaldi ''Seguenzia donaldi'' is a species of extremely small deep water sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae.WoRMS (2013). ''Seguenzia donaldi'' Ladd, 1982. Retrieved through: World Register ...

'' Ladd, 1982 *''

Seguenzia eidalima ''Seguenzia eidalima'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia eidalima'' B.A. Marshall, 1991. Retrieved through: World Register of Marine S ...

'' Marshall, 1991 *''

Seguenzia elegans ''Seguenzia elegans'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae. Description The size of the shell varies between 3 mm and 4.3 mm. The base is perforated or umbilicated. The fissure of the out ...

Jeffreys Jeffreys is a surname, which may refer to: People: (See also the common variants Jeffries and Jefferies) * Alec Jeffreys (born 1950), British biologist and discoverer of DNA fingerprinting * Anne Jeffreys (1923–2017), American actress and si ...

, 1885 *''

Seguenzia elegantissima ''Seguenzia elegantissima'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (accord ...

'' Poppe, Tagaro & Dekker, 2006 *''

Seguenzia emmeles ''Seguenzia emmeles'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily S ...

'' Marshall, 1991 *''

Seguenzia engonia ''Seguenzia engonia'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B.; Bouchet, P. (2013). ''Seguenzia engonia'' B.A. Marshall, 1991. Retrieved through: World Register of ...

'' B.A. Marshall, 1991 *'' Seguenzia eritima'' Verrill, 1884 *''

Seguenzia eutyches ''Seguenzia eutyches'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia eutyches'' B.A. Marshall, 1991. Retrieved through: World Register of Marine Spe ...

'' Marshall, 1991 *''

Seguenzia fatigans ''Seguenzia fatigans'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia fatigans'' Barnard, 1963. Retrieved through: World Register of Marine Species The W ...

'' Barnard, 1963 *''

Seguenzia floridana ''Seguenzia floridana'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Rosenberg, G. (2013). ''Seguenzia floridana'' Dall, 1927. Retrieved through: World Register of Marine Species a ...

, 1927 *''

Seguenzia formosa ''Seguenzia formosa'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS) The ...

, 1876 *''

Seguenzia fulgida ''Seguenzia fulgida'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia fulgida'' B.A. Marshall, 1983. Retrieved through: World Register of Marine Speci ...

'' Marshall, 1983 *'' Seguenzia giovia''

, 1919 * † ''

Seguenzia glabella ''Seguenzia'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thi ...

'' B. A. Marshall, 1983 *''

Seguenzia hapala ''Seguenzia hapala'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae. Description The height of the shell of '' Seguenzia hapala'' attains 3 mm, with a delicate, translucent appearance characteristic of many d ...

'' Woodring, 1928 *''

Seguenzia hosyu ''Seguenzia hosyu'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia hosyu'' Habe, 1953. Retrieved through: World Register of Marine Species The World Regi ...

'' Habe, 1953 *''

Seguenzia iota ''Seguenzia iota'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia iota'' B.A. Marshall, 1991. Retrieved through: World Register of Marine Species at ...

'' Marshall, 1991 *''

Seguenzia keikoae ''Seguenzia keikoae'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae. Description The size of the shell varies between 2 mm and 2.5 mm. Distribution This marine species occurs off the Philippines ...

'' Poppe, Tagaro & Dekker, 2006 *''

Seguenzia levii ''Seguenzia levii'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia levii'' B.A. Marshall, 1991. Retrieved through: World Register of Marine Species ...

'' Marshall, 1991 *''

Seguenzia lineata ''Seguenzia lineata'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Rosenberg, G. (2013). ''Seguenzia lineata'' Watson, 1879. Retrieved through: World Register of Marine Species at ...

Watson Watson may refer to: Companies * Actavis, a pharmaceutical company formerly known as Watson Pharmaceuticals * A.S. Watson Group, retail division of Hutchison Whampoa * Thomas J. Watson Research Center, IBM research center * Watson Systems, maker ...

, 1879 *''

Seguenzia louiseae ''Seguenzia louiseae'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia louiseae'' A. H. Clarke, 1961. Retrieved through: World Register of Marine Species ...

'' A.H. Clarke, 1961 * ''

Seguenzia macleani ''Seguenzia'' is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thin shell has a turbinate or subtr ...

'' Geiger, 2017 *''

Seguenzia matara ''Seguenzia matara'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia matara'' B.A. Marshall, 1988. Retrieved through: World Register of Marine Species ...

'' Marshall, 1988 *''

Seguenzia metivieri ''Seguenzia metivieri'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia metivieri'' B.A. Marshall, 1991. Retrieved through: World Register of Marine S ...

'' Marshall, 1991 *''

Seguenzia mirabilis ''Seguenzia mirabilis'' is a species of extremely small deep water sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae.WoRMS (2013). ''Seguenzia mirabilis'' Okutani, 1964. Retrieved through: World R ...

'' Okutani, 1964 *''

Seguenzia monocingulata ''Seguenzia monocingulata'' is an extinct species of sea snail, a marine gastropod mollusk in the family Seguenziidae. It resembles '' Seguenzia formosa'' and has been regarded as a synonym of that (extant) species. However the two species are ...

'' Seguenza, 1876 *''

Seguenzia nipponica ''Seguenzia nipponica'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia nipponica'' Okutani, 1964. Retrieved through: World Register of Marine Species The ...

'' Okutani, 1964 *'' Seguenzia nitida'' Verrill, 1884 *''

Seguenzia occidentalis ''Seguenzia occidentalis'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia occidentalis'' Dall, 1908. Retrieved through: World Register of Marine Species at ...

, 1908 *''

Seguenzia orientalis ''Seguenzia orientalis'' is a species of extremely small deep water sea snail, a marine gastropod mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or ...

, 1925 *''

Seguenzia platamodes ''Seguenzia platamodes'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia platamodes'' Marshall, 1991. Retrieved through: World Register of Marine Species at ...

'' Marshall, 1991 *''

Seguenzia praeceps ''Seguenzia praeceps'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia praeceps'' Marshall, 1991. Retrieved through: World Register of Marine Species at http: ...

'' Marshall, 1991 * † ''

Seguenzia prisca ''Seguenzia'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thi ...

'' B. A. Marshall, 1983 * † ''

Seguenzia propheta ''Seguenzia'' is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thin shell has a turbinate or subtr ...

'' Lozouet, 1999 *''

Seguenzia richeri ''Seguenzia richeri'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia richeri'' Marshall, 1991. Retrieved through: World Register of Marine Species at http:/ ...

'' Marshall, 1991 * † ''

Seguenzia serrata ''Seguenzia'' is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thin shell has a turbinate or subtr ...

'' B. A. Marshall, 1983 *''

Seguenzia soyoae ''Seguenzia soyoae'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia soyoae'' (Okutani, 1964). Retrieved through: World Register of Marine Species The Wor ...

'' (Okutani, 1964) * † ''

Seguenzia statiana ''Seguenzia'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thi ...

'' Sosso, Bertolaso & Dell'Angelo, 2020 *''

Seguenzia stegastris ''Seguenzia stegastris'' is a species of extremely small deep water sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae.Marshall, B. (2013). ''Seguenzia stegastris'' B.A. Marshall, 1991. Retrieved th ...

'' Marshall, 1991 *''

Seguenzia stephanica ''Seguenzia stephanica'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia stephanica'' Dall, 1908. Retrieved through: World Register of Marine Species at http ...

, 1908 *'' Seguenzia sumatrensis''

, 1925 *''

Seguenzia textilis ''Seguenzia textilis,'' commonly known as a marine snail'','' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia textilis'' B.A. Marshall, 1983. Retrieved ...

'' Marshall, 1983 *''

Seguenzia transenna ''Seguenzia transenna'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia transenna'' B.A. Marshall, 1983. Retrieved through: World Register of Marine S ...

'' Marshall, 1983 *''

Seguenzia triteia ''Seguenzia triteia'' is a species of very small, deep water sea snail, a marine gastropod mollusc in the family Seguenziidae.MolluscaBase eds. (2022). MolluscaBase. Seguenzia triteia Salvador, Cavallari & Simone, 2014. Accessed through: World ...

'' Salvador, Cavallari & Simone, 2014 *''

Seguenzia trochiformis ''Seguenzia trochiformis'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (accordi ...

'' Poppe, Tagaro & Dekker, 2006 *''

Seguenzia wareni ''Seguenzia wareni'' is a species of extremely small deep water sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae.WoRMS (2013). ''Seguenzia wareni'' Marshall, 1991. Retrieved through: World Regist ...

'' Marshall, 1991 ;Species brought into synonymy: *''Seguenzia caliana''

, 1919: synonym of ''

'' Dall, 1908 *''Seguenzia carinata''

, 1876 synonym of ''

Carenzia carinata ''Carenzia carinata'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae. Description The size of the shell varies between 2.7 mm and 4.4 mm. The shell thin, transparent, glossy, but not nacreous forms ...

'' (Jeffreys, 1877) *''Seguenzia certoma''

, 1919: synonym of ''

'' Dall, 1908 *''Seguenzia cazioti'' Dautzenberg, 1925: synonym of ''

Quinnia cazioti ''Quinnia cazioti'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Quinnia cazioti'' (Dautzenberg, 1925). Retrieved through: World Register of Marine Species The W ...

'' (Dautzenberg, 1925) *''Seguenzia ionica''

, 1878 synonym of

Quinnia ionica ''Quinnia ionica'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Seguenziidae. It was so called by Watson from its resemblance to the volute of the Ionic capital. Description (Original description by Wat ...

(Watson, 1878) *''Seguenzia laxa''

, 1885: synonym of ''

Haloceras laxa ''Haloceras'' is a genus of sea snails, marine gastropod mollusks in the family Haloceratidae.MolluscaBase eds. (2021). MolluscaBase. Haloceras Dall, 1889. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphi ...

'' (Jeffreys, 1885) *''Seguenzia megaloconcha'' Rokop, 1972: synonym of ''

'' Dall, 1919 *''Seguenzia melvillii''

, 1909: synonym of ''

Carenzia melvillii ''Carenzia melvilli'' is a species of small deep water sea snails, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae. Description Shell It has a conical, scalar, umbilicate, whitish shell. It is moderately ...

'' (

, 1909) *''Seguenzia polita'' Verco, 1906: synonym of ''

Quinnia polita ''Quinnia polita'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Quinnia polita'' (Verco, 1906). Retrieved through: World Register of Marine Species The World Reg ...

'' ( Verco, 1906) * ''Seguenzia quinni'' J. H. McLean, 1985: synonym of '' Seguenzia giovia'' Dall, 1919 *''Seguenzia reticulata'' (

Philippi Philippi (; grc-gre, Φίλιπποι, ''Philippoi'') was a major Greek city northwest of the nearby island, Thasos. Its original name was Crenides ( grc-gre, Κρηνῖδες, ''Krenides'' "Fountains") after its establishment by Thasian col ...

, 1844): synonym of ''

Ancistrobasis reticulata ''Ancistrobasis reticulata'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae. Distribution This species occurs in the Gulf of Mexico, off Brazil Brazil ( pt, Brasil; ), officially the Federative Republi ...

'' (

, 1844) *''Seguenzia rushi''

, 1927: synonym of ''

Quinnia rushi ''Quinnia rushi'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Quinnia rushi'' (Dall, 1927). Retrieved through: World Register of Marine Species at http://www.marin ...

'' (, 1927) *''Seguenzia siberutensis''

, 1925: synonym of ''

Halystina siberutensis ''Halystina siberutensis'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfam ...

'' (

, 1925) *''Seguenzia simplex'' Barnard, 1963: synonym of ''

Halystina simplex ''Halystina simplex'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Halystina simplex'' (Barnard, 1963). Retrieved through: World Register of Marine Species at htt ...

'' (Barnard, 1963) *''Seguenzia sykesi''

, 1909: synonym of ''

Quinnia sykesi ''Quinnia sykesi'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Quinnia sykesi'' (Schepman, 1909). Retrieved through: World Register of Marine Species at http://www ...

'' (

, 1909) *''Seguenzia tricarinata''

, 1885: synonym of ''

Haloceras tricarinata ''Haloceras'' is a genus of sea snails, marine gastropod mollusks in the family Haloceratidae.MolluscaBase eds. (2021). MolluscaBase. Haloceras Dall, 1889. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphi ...

'' (

, 1885)

References

* Quinn J.F. (1983). ''A revision of the Seguenziacea Verrill, 1884 (Gastropoda : Prosobranchia). I. Summary and evaluation of the superfamily'', Proceedings of the Biological Society of Washington, 96(4): pp. 725–757

External links

Jeffreys, J. G. (1876). Preliminary report of the biological results of a cruise in H.M.S. Valorous to Davis Straits in 1875. Proceedings of the Royal Society of London. 25: 177-237.

Marshall, B. A. (1983). Recent and Tertiary Seguenziidae (Mollusca: Gastropoda) from the New Zealand region. New Zealand Journal of Zoology. 10: 235-262.

Harris, G. F. (1897). Catalogue of Tertiary Mollusca in the Department of Geology, British Museum (Natural History). Part I. The Australasian Tertiary Mollusca. London: British Museum (Natural History). xxvi + 406 pp., 6 pls.
{{Commons category Seguenziidae Taxa named by John Gwyn Jeffreys