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Morphology Ecology and taphonomy   Age range and collections

Cerithium (Nigerithium)

Gastropoda - Sorbeoconcha - Cerithiidae

Synonymy list
YearName and author
1977Cerithium (Nigerithium) Adegoke pp. 77 - 78
2002Nigerithium Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
orderSorbeoconchaPonder and Lindberg 1997
superfamilyCerithioidea(Férussac 1819)
familyCerithiidae(Fleming 1822)
subfamilyCerithiinaeFleming 1822
genusCerithiumBruguière 1789
subgenusNigerithium

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
O. S. Adegoke 1977Medium-sized cerithiid, with high, gently tapering spire of several whorls. Spire whorls low, whorl width more than twice height, sides gently convex. Body whorl higher than wide.

Shell bears a series of prominent unevenly spaced axial ridges not continuous from whorl to whorl, 11 ridges present on body whorl, 10 on penultimate whorl. Spiral sculpture faint and supressed. Columella short, cylindrical and folded; labral edge sinuous. Growth line doubly flexed with broadly curved and shallow anterior and posterior sinuses.