N. cinctella A. Adams. Two syntypes in the B.M.N.H. No. 1972112; illustrated syntype 13.0 X 9.0 X 7.5 mm. Pale fawn in colour, callus white, penultimate whorl with 10 coarse axial ribs and 5 overriding spiral cords, body whorl with 8 ribs and 11 spiral cords, columella with 2 strong plicae anteriorly and a parietal fold, callus not sharply bordered, outer lip with 7 denticles. St. Helena, 20 fathoms (37 m).

E. A. Smith (1890) commented that the existing 2 syntypes were the only specimens known, and also considered the species to be similar to the Caribbean N. ambiguus (= N. albus Say). In appearance, however, the species seems to share features of form, conical spire, outer lip varix and sculpture with the West African N. tritoniformis (Kiener, 1841), except that the St. Helena species has broader axial ribs. Nassa cinctella A. Adams, 1852, is a primary homonym of the Indo-Pacific Nassa cinctella Gould, 1850. Further research on the identity and distribution of the St. Helena species is clearly indicated before a substitute name is proposed.

Homonymy The name Nassa cinctella A. Adams, 1852, is a junior homonym of Nassa cinctella Gould, 1850, and the name Nassarius cinctellus (A. Adams, 1852) is thus nomenclaturally invalid. However, in the absence of a revision of southern Atlantic nassariids, it is uncertain whether there may be another name available for the same taxonomical species, or whether a replacement name is needed. Pending such a revision, WoRMS maintains the status quo by listing the two Nassarius cinctellus of Gould, 1850, and A. Adams, 1852, as valid.