''Typhlodaphne'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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

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 ...

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 e ...

s in the

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

Borsoniidae Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.o ...

Description

The smooth

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 bluntly rounded and paucispiral, consisting of two

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

s. The sinus is subsutural, steeply descending and then produced forward to meet the arcuately produced outer

lip The lips are the visible body part at the mouth of many animals, including humans. Lips are soft, movable, and serve as the opening for food intake and in the articulation of sound and speech. Human lips are a tactile sensory organ, and can be ...

. The vestigial operculum may reflect an archaic condition.

Species

Species within the genus ''Typhlodaphne'' include: * ''

Typhlodaphne corpulenta ''Typhlodaphne corpulenta'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea ...

'' (Watson, 1881) * ''

Typhlodaphne filostriata ''Typhlodaphne filostriata'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae. Distribution This marine species occurs in the Strait of Magellan off Cape Horn Cape Horn ( es, Cabo de Hornos, ) is the southe ...

'' (Strebel, 1905) * ''

Typhlodaphne paratenoceras ''Typhlodaphne paratenoceras'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.MolluscaBase (2018). Typhlodaphne paratenoceras (Powell, 1951). Accessed through: World Register of Marine Species at: http://www.mar ...

'' (Powell, 1951) * ''

Typhlodaphne payeni ''Typhlodaphne payeni'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae. Description The shell grows to a length of 10 mm. Distribution This marine species occurs off Tierra del Fuego Tierra del Fueg ...

'' (Rochebrune & Mabille, 1885) * ''

Typhlodaphne platamodes ''Typhlodaphne platamodes'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea ...

'' (Watson, 1881) * ''

Typhlodaphne purissima ''Typhlodaphne purissima'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae. Description The shell grows to a length of 27 mm. Distribution This marine species occurs off Argentina, Tierra del Fuego and S ...

'' (Strebel, 1908) * ''

Typhlodaphne strebeli ''Typhlodaphne strebeli'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae. Description The size of an adult shell varies between 15 mm and 30 mm. The elongate, ovate-fusiform shell has a buff color. I ...

'' Powell, 1951 ;Species brought into synonymy: * ''Typhlodaphne innocentia'' Dell, 1990: synonym of ''

Pleurotomella innocentia ''Pleurotomella innocentia'' is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.MolluscaBase (2018). Pleurotomella innocentia (Dell, 1990). Accessed through: World Register of Marine Species at: http://www.marines ...

'' (Dell, 1990) (original combination) * ''Typhlodaphne nipri'' Numanami, 1996: synonym of ''

Pleurotomella nipri ''Pleurotomella nipri'' is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae Raphitomidae is a family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet P. & R ...

'' (Numanami, 1996) (original combination) * ''Typhlodaphne translucida'' (Watson, 1881): synonym of ''

Xanthodaphne translucida ''Xanthodaphne translucida'' is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.MolluscaBase (2018). Xanthodaphne translucida (Watson, 1881). Accessed through: World Register of Marine Species at: http://www.marin ...

'' (Watson, 1881)

References

External links

Powell A. W. B. (1951). ''Antarctic and Subantarctic Mollusca: Pelecypoda and Gastropoda''. Discovery Reports, 26: 47-196, pl. 5-10

Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273-308
*
Kantor Y.I., Harasewych M.G. & Puillandre N. (2016). A critical review of Antarctic Conoidea (Neogastropoda). Molluscan Research. 36(3): 153-206
Gastropod genera {{Borsoniidae-stub