Crassispira vexillum is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.MolluscaBase (2018). Crassispira vexillum (Reeve, 1845). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=577702 on 2018-07-24
Description The length of the shell attains 11 mm.
The shell is closely ribbed, and with revolving ridges at the base. The color of the shell is yellowish, the lower half of the body-whorl, and a narrow lower portion of those of the spire chocolate-brown.G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
Distribution This marine species occurs off Barbuda and St. Vincent
References
Fallon P.J. (2011) Descriptions and illustrations of some new and poorly known turrids (Gastropoda: Turridae) of the tropical northwestern Atlantic. Part 3. Genus Crassispira Swainson, 1840, subgenus Crassiclava McLean, 1971. The Nautilus 125(2): 53-62
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