''Clavatula debilis'' is a species 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 ...

, a 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 in the family

Clavatulidae Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea. The family is not well differentiated morphologically. Clavatulidae was raised, based on cladistic analysis, from subfamily to the family ...

Description

The elongate, fusiform and acuminate shell grows to a length of 14 mm. It contains eight rounded and ribbed

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, transversely striate. The small ribs are round. The sutures are simple. The inner lip is crenulate. The

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

is of mediocre length.Hinds, R.B., Proceedings of the Zoological Society of London, 1843, p. 39 ; The Zoology of the Voyage of H. M. S. Sulphur., p. 17, pl. 5, f. 16
/ref>

Distribution

This marine species occurs off New Guinea; in the

Strait of Macassar Makassar Strait is a strait between the islands of Borneo and Sulawesi in Indonesia. To the north it joins the Celebes Sea, while to the south it meets the Java Sea. To the northeast, it forms the Sangkulirang Bay south of the Mangkalihat Penin ...

, Indonesia; off the Philippines, Thailand and off Zanzibar; also off Darnley Island, Torres Straits.

References

External links

*
Brazier, J. 1876. ''A list of the Pleurotomidae collected during the Chevert expedition, with the description of the new species''. Proceedings of the Linnean Society of New South Wales 1: 151–162
{{DEFAULTSORT:Clavatula Debilis debilis Gastropods described in 1843 Marine molluscs of Asia Taxa named by Richard Brinsley Hinds