Ptychobela baynhami

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Ptychobela baynhami
Ptychobela baynhami 001.jpg
Shell of Ptychobela baynhami (specimen at MNHN, Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Ptychobela
Species:
P. baynhami
Binomial name
Ptychobela baynhami
(Smith E. A., 1891)
Synonyms [1]
  • Drillia baynhamiMelvill & Standen, 1901
  • Pleurotoma baynhamiSmith E. A., 1891

Ptychobela baynhami is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. [1]

Contents

Description

The length of the shell attains 29 mm, its diameter 9 mm.

Like Ptychobela suturalis (Gray, 1838), this fusiform, turreted species has a raised fillet at the suture. But it may be distinguished by its shorter body whorl, its more pronounced ribs, and the difference of colour. The shell contains 12 whorls; the first two are smooth and globose. The subsequent whorls are concave above the middle and convex below. The ribs (in the penultimate whorl 9–10) become obsolete a little above the middle of the whorls where the concavity commences, and, being traversed by a distinct tenuous white spiral thread, have a somewhat angulated appearance. The aperture measures 2/5th of the total length. The inner part of the aperture is livid. The columella is slightly arcuate and has a minute callus. [2]

Distribution

This marine species occurs in the Indian Ocean off Aden and Somalia

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References

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