Bé, MacClintock & Currie, 1972
Original taxon: Cuvierina columnella atlantica.
Synonym: major.
The shell is more slender than in other members of the genus, its aperture is triangular, the inflation is at a low position, and there is no microsculpture. Notice the reclined septum (detail).
80-120m deep, Gibraltar Strait. 8,9mm.
Beach drift, Ribeira Brava, southern coast of Madeira. 9,1mm.
About the genus: « One of the specimens from the W. Pacific had the hinder part of the shell yet attached. It is long and slender, conic, terminating into a point, quite as Boas described it (p.132, Pl.3, fig.39, Pl.4, fig. 56). Contrary to this author, I could nothing observe about a constriction near the end, which separates an embryonic shell from the rest. At this place I observed a very minute septum, which, if I am not mistaken, also appears in the figure of Boas (Pl.3, fig.39), without being mentioned in the text. » – J. J. Tesch: “The pteropoda of the Leyden Museum”, Notes from the Leyden Museum vol.29, Leyden 19071908, p.195. – Above: the complete shell, with its juvenile part and the aforesaid septum, in J. E. V. Boas: “Spolia Atlantica. Bidrag til Pteropodernes”, Det Kongelige Danske videnskabernes selskabs skrifter. Naturvidenskabelig og mathematisk afdeling ser.6, vol.4, Copenhagen 1886, plate III, fig.39.
