Crassispira nigrescens is a species of small predatory sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Description The length of the blackish, brown shell attains 8.5 mm. The shell contains 8 whorls, showing a beaded sculpture. The outer lip is very thick. The sinus is not very deep. The siphonal canal is very short.C.B. Adams, Specierum novarum conchyliorum, in Jamaica repertorum, synopsis; Proceedings of the Boston Society of Natural History.v. 2 (1845–1848)
Distribution This marine species occurs in the West Indies.
References
External links Rosenberg G., Moretzsohn F. & García E. F. (2009). Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas
De Jong K.M. & Coomans H.E. (1988) Marine gastropods from Curaçao, Aruba and Bonaire. Leiden: E.J. Brill. 261 pp.