''Turris amicta'' 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

Turridae Turridae is a taxonomic family name for a number of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. MolluscaBase (2018). Turridae H. Adams & A. Adams, 1853 (1838). Accessed through: World Register of Marine Specie ...

, the turrids.

Description

The length of the shell varies between 45 mm and 65 mm. The solid shell has a fusiform shape. The shell is uniform white with a yellowish-olive periostracum. It contains 14-15 whorls, flat-sided and rather deep. The aperture is small with the inside slightly lirate. The short

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 slightly flexed to the right and recurved. The inner lip is narrow and crenulate at the margin. The left-handed columella is tortuous and suboblique. This species is remarkable for the numerous subequal keels or spiral lirations, none of them being very large. A double one a little above the middle of the

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 flo ...

s has above and below it a very peculiar style of sculpturing, consisting of a kind of puckering of a very short and oblique thread-like lines.Smith, E. A. (1877). Diagnoses of new species of Pleurotomidae in the British Museum. Annals and Magazine of Natural History. ser. 4, 19: 488–501
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Distribution

This marine species occurs off Pakistan, India,

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

; also off Hawaii

References

* Kilburn R.N., Fedosov A.E. & Olivera B.M. (2012) Revision of the genus Turris Batsch, 1789 (Gastropoda: Conoidea: Turridae) with the description of six new species. Zootaxa 3244: 1–58. {{DEFAULTSORT:Turris Amicta amicta Gastropods described in 1877