Stilla flexicostata

Stilla flexicostata is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.[1]

Stilla flexicostata
Original image of a shell of Stilla flexicostata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Raphitomidae
Genus: Stilla
Species:
S. flexicostata
Binomial name
Stilla flexicostata
(Suter, 1899)
Synonyms[1]

Mangilia flexicostata Suter, 1899

Description

The length of the shell attains 2.25 mm, its diameter 1.25 mm.

(Original description) The minute, white, semi-transparent shell has an oval-elongated shape. Its spire is longer than the body whorl. It contains five whorls, narrowly shouldered, with flexuous plicae, about 16 on the body whorl, microscopically spirally striate. The protoconch consists of 1½ smooth, minute whorls. The suture is deep. The aperture is oval and angled above. The outer lip is somewhat thickened, sinuous, with a broad shallow sinus just below the suture. The columella is arcuate, slightly callous. The anterior siphonal canal is short, rather oblique and truncated. The animal is unknown. [2]

Distribution

This marine species is endemic to New Zealand and occurs off Foveaux Strait, Stewart, Snares and Auckland Island

References
  1. Stilla flexicostata (Suter, 1899). Retrieved through: World Register of Marine Species on 5 April 2010.
  2. Suter H. (1899). Revision of the New Zealand Pleurotomidae, with descriptions of six new species. Transactions and Proceedings of the New Zealand Institute. 31: 64-77, pl. 3
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland
  • Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
  • Spencer H.G., Willan R.C., Marshall B.A. & Murray T.J. (2011). Checklist of the Recent Mollusca Recorded from the New Zealand Exclusive Economic Zone
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