''Dendroconus'' is a
subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus.
In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between t ...
of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s,
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
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusks in the genus ''
Conus
''Conus'' is a genus of predatory sea snails, or cone snails, marine gastropod mollusks in the family Conidae.Bouchet, P.; Gofas, S. (2015). Conus Linnaeus, 1758. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at ...
'',
family Conidae
Conidae, with the current common name of "cone snails", is a taxonomic family (previously subfamily) of predatory sea snails, marine gastropod molluscs in the superfamily Conoidea.
The 2014 classification of the superfamily Conoidea, groups onl ...
, the
cone snails
A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.
A cone is formed by a set of line segments, half-lines, or lines co ...
and their allies.
In the new classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), ''Dendroconus'' has become a subgenus of ''Conus'': ''Conus (Dendroconus)''
Tucker & Tenorio, 2013 represented as ''
Conus
''Conus'' is a genus of predatory sea snails, or cone snails, marine gastropod mollusks in the family Conidae.Bouchet, P.; Gofas, S. (2015). Conus Linnaeus, 1758. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at ...
''
Linnaeus, 1758 [ Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015). ''One, four or 100 genera? A new classification of the cone snails''. Journal of Molluscan Studies. 81: 1-23](_blank)
/ref>
Distinguishing characteristics
The Tucker & Tenorio 2009 taxonomy distinguishes ''Dendroconus'' from ''Conus'' in the following ways:[Tucker J.K. & Tenorio M.J. (2009), Systematic Classification of Recent and Fossil Conoidean Gastropods, ConchBooks, Hankenheim, Germany, 295 pp.]
* Genus ''Conus'' Linnaeus, 1758
:: Shell characters (living and fossil species)
:::The basic shell shape is conical to elongated conical, has a deep anal notch on the shoulder, a smooth periostracum
The periostracum ( ) is a thin, organic coating (or "skin") that is the outermost layer of the shell of many shelled animals, including molluscs and brachiopods. Among molluscs, it is primarily seen in snails and clams, i.e. in gastropods and ...
and a small operculum. The shoulder of the shell is usually nodulose and the protoconch
A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...
is usually multispiral. Markings often include the presence of tents except for black or white color variants, with the absence of spiral lines of minute tents and textile bars.
::Radular tooth (not known for fossil species)
:::The radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...
has an elongated anterior section with serrations and a large exposed terminating cusp, a non-obvious waist, blade is either small or absent and has a short barb, and lacks a basal spur.
::Geographical distribution
:::These species are found in the Indo-Pacific
The Indo-Pacific is a vast biogeographic region of Earth.
In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...
region.
::Feeding habits
:::These species eat other gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
s including cones.
* Subgenus ''Dendroconus'' Swainson, 1840
::Shell characters (living and fossil species)
:::The shell is large, thick, and turgid to conical in shape. The protoconch
A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...
is multispiral and nodules are either absent or die out in later whorls. The shoulders are rounded and the shell is ornamented with cords which become numerous and very small in the outer whorls. The anal notch is shallow. The periostracum
The periostracum ( ) is a thin, organic coating (or "skin") that is the outermost layer of the shell of many shelled animals, including molluscs and brachiopods. Among molluscs, it is primarily seen in snails and clams, i.e. in gastropods and ...
may be smooth but is often thick and ridged, and the operculum is small.
::Radular tooth (not known for fossil species)
:::The anterior section of the radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...
is equal to or slightly longer than the posterior section. The blade is fairly long and covers at least half the length of the anterior section of the radular tooth. A basal spur is present, and the barb is short. The radular tooth has serrations and the terminating cusp is exposed along the shaft.
::Geographical distribution
:::These species are found in the Indo-Pacific region.
::Feeding habits
:::These species are vermivorous (meaning that they prey on marine worms).
Species list
This list of species is based on the information in the World Register of Marine Species ( WoRMS) list. Species within the genus ''Dendroconus'' include:
* ''Dendroconus betulinus'' (Linnaeus, 1758): synonym of ''Conus betulinus
''Conus betulinus'', common name the betuline cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
These snails are predatory and venomous. They are capable of "stinging" humans ...
'' Linnaeus, 1758
* ''Dendroconus biliosus'' (Röding, 1798: synonym of '' Conus biliosus'' (Röding, 1798)
* ''Dendroconus buxeus'' (Röding, 1798): synonym of '' Conus buxeus'' (Röding, 1798)
* ''Dendroconus figulinus'' (Linnaeus, 1758): synonym of '' Conus figulinus'' Linnaeus, 1758
* ''Dendroconus glaucus'' (Linnaeus, 1758): synonym of '' Conus glaucus'' Linnaeus, 1758
* ''Dendroconus medoci'' (Lorenz, 2004): synonym of '' Conus medoci'' Lorenz, 2004
* ''Dendroconus neoroseus'' da Motta, 1993: synonym of '' Conus biliosus'' (Röding, 1798)
* ''Dendroconus royaikeni'' Veldsman, 2010:[Veldsman S.G. (2010) ''A new species of Dendroconus from KwaZulu-Natal, South Africa''. Malacologia Mostra Mondiale 66: 3-10.] synonym of ''Conus royaikeni
''Conus royaikeni'' is a species of sea snail, a marine gastropod mollusc in the family Conidae, the cone snails, cone shells or cones.Bouchet, P. (2015). Conus royaikeni. In: MolluscaBase (2015). Accessed through: World Register of Marine Specie ...
'' (S. G. Veldsman, 2010)
* ''Dendroconus suratensis'' (Hwass in Bruguière, 1792): synonym of '' Conus suratensis'' Hwass in Bruguière, 1792
References
Further reading
* Kohn A. A. (1992). "Chronological Taxonomy of ''Conus'', 1758-1840". Smithsonian Institution Press, Washington and London.
* Monteiro A. (ed.) (2007)
The Cone Collector 1
1-28.
* Berschauer D. (2010). ''Technology and the Fall of the Mono-Generic Family'
The Cone Collector 15
pp. 51-54
* Puillandre N., Meyer C.P., Bouchet P., and Olivera B.M. (2011), ''Genetic divergence and geographical variation in the deep-water Conus orbignyi complex (Mollusca: Conoidea)'', Zoologica Scripta 40(4) 350-363.
External links
To World Register of Marine Species
Gastropods.com: ''Conidae'' setting forth the genera recognized therein.
{{Taxonbar, from=Q5256744
Conidae
Gastropod subgenera