N. rubricata. Holotype in USNM. No. 5728; 16.0 X 8.4 X 8.3 mm. Uniformly brown in colour, aperture white, penultimate whorl with 23 axial ribs and 5 spiral rows of nodules, body whorl with 22 ribs, 7 rows of nodules and 3 strong cords, base of columella with 3 folds, aperture denticulate. Pacific shore.
N. nevilliana. Holotype in B.M.N.H- No. 1906.4.17.2.; 16.7 x 9.0 X 9.0 mm. Uniformly tan in colour, slightly darker near sutures, penultimate whorl with 21 axial ribs and 4 spiral rows of nodules, base of columella with 2 folds, aperture denticulate. Ceylon ? = error.
N. flammulata. Holotype in B.M.N.H. No. I9I5.I.6.55.; 13.3 X 7.0 x 6.6mm. Uniformly brown in colour, aperture white, penultimate whorl with 15 axial ribs and 5 spiral rows of nodules, body whorl with 18 ribs and 10 spiral rows of nodules, axial sculpture absent on earlier whorls and obsolete on the body whorl towards the outer lip, base of columella with 4 folds, aperture denticulate. S. Peru.

When Preston (1906) described new species based on unlocalised specimens from Hugh NeviU's collection, he hazarded a guess that they originated from Ceylon. His Bullia cinerea is a juvenile specimen of the Australian Nassarius dorsatus (Roding), and N. nevillianus is not an Indo-Pacific species but is conspecific with N. gayii from the west coast of South America.

It seems very unlikely that the small (6.5 mm) Buccinum nucleolus Philippi, 1846 from Mazatlan. is a synonym of the considerably larger (16.5 mm) Buccinum taeniolatum Philippi, 1845, from Chonos I. Chile, as suggested by Keen (1971). The former species is always minute, white with a narrow reddish-brown band at the sutures and occasionally at the base of the body whorl, whereas Nassarius taeniolatus is considerably larger, brown in colour and regularly nodulose. The latter species closely resembles N. gayii and may prove to be a synonym.