Five syntypes in the B.M.N.H. No. 1887.2.9.661-5.; dorsal view of illustrated syntype 9.9 x 5.5 X 4.7 mm, ventral view of illustrated syntype 12.0 X 6.3 X 5.1 mm. White in colour, some specimens occasionally stained with orange-brown between axial ribs, penultimate whorl with c. 10 axial ribs and 7 spiral threads, body whorl with 14 ribs and 14 spiral threads, columella plicate, aperture lirate. Anchorage at Fernando Noronha Island, Brazil, 3° 47'S and 32° 24'30’’W, 25 fathoms (46 m). This species undoubtedly belongs to the albus-consensus group of species, and according to Matthews in Rios (1970), is a synonym of N. albus (Say, 1826). N. capillaris, however, bears a very close resemblance to the albus-group of species from the Florida Pliocene, particularly N. locklini and N. fargoi Olsson & Harbison, 1953.