A. E. Verrill — Catalogue of Marine Moltusca. 
501 
Neaera perrostrata Dali. 
Necera ornatissima (D’Orbigny), var. 'perrostrata Dali, Bulletin Mus. Comp. Zool., ix. 
p. 110, 1881. 
% “ ** 
This shell has been examined by Mr. Dali and identified with 
those from the “Blake” Exp., described by him. It seems to me a 
species quite distinct from the one figured by D’Orbigny, if his fig- 
ures are at all reliable. 
This species is related to the preceding one. It is a smaller shell, 
narrower and longer than the young of N. multicostata of the same 
size, less ventricose, and with a decidedly longer and straighter ros- 
trum, which does not distinctly turn up at the end. The ribs are 
fewer in number and much higher and thinner, with perpendicular 
sides, while those on the anterior half of the shell become only a 
little and gradually smaller and closer. The rostrum has a diagonal 
keel, and in some examples the ventral half is covered with several 
ribs; while in others it is without any, below the keel. 
Off Martha’s Vineyard, stations 871, 874, 876, in 85 to 120 fath- 
oms, 1880. Gulf of Mexico, 339 fathoms, — Dali. 
Neaera lamellosa m. Sars. 
Necera lamellosa M. Sars, Chr. Yidensk-Selsk. Forhandl., 18G8, p. 257 (name without 
description). 
Necera jugosa G. 0. Sars, op. cit., p. 88, pi. 6, figs. 9 a-c ( non S. Wood). 
Verrill. Amer. Journ. Sci., xx, p. 392, Nov., 1880; Proc. U. S. Nat. Mus., iii, 
p. 398, 1880. 
Necera lamellosa Jeffreys, Moll, of Lightning and Porcupine Exp., in Proc. Zool. Soc. 
London for Nov., 1881, p. 940, Apr., 1882. 
Jeffreys, in the paper last quoted, considers the fossil, JV. jugosa, 
distinct from the recent species. 
This species is easily distinguished from all others hitherto found 
on our coast by its raised, concentric lamelke. Stations 892, 894, in 
487 and 365 fathoms, off Martha’s Vineyard, 1880; station 947, in 
312 fathoms, 1881. 
On the European coast, it is found from Finmark and Bergen 
south to Palermo. Bay of Biscay, — Jeffreys. 
