A. EF. Verrill— Catalogue of Marine Mollusca. 543 

specimens. Whole surface covered with fine, close, minutely wavy 
spiral lines, scarcely visible without a lens, Animal unknown. 
Length of the largest, 10"™ ; breadth in the middle, 5°25"™. Sta- 
tions 997 and 999, in 335 and 266 fathoms, 1881. 
Diaphana gemma Verrill. 
Diaphana gemma Verrill, Amer. Journ. Sci., xx, pp. 392, 399, Nov., 1880; Proc. U. 
S. Nat. Mus., iii, p. 382, 1889. 
Puate LVIII, FIGURE 22. 
_* Stations 871 and 873, 100 to 115 fathoms, fine sand, south of Mar- 
tha’s Vineyard and Newport, R. I. 
Diaphana conulus (Desh.). 
Utriculus conulus G. O. Sars, op. cit., p. 287, pl. 17, figs. 17 a—c. 
Diaphana conulus Verrill, Proc. U. 8S. Nat. Mus., iii, p. 382, 1880. 
PLATE LVIII, FIGURE 25. 
A perfect living specimen of this species was taken at station 
870, in 155 fathoms, and a dead one at 949, in 100 fathoms. It had 
not been found before on the American coast. . Our specimen differs 
somewhat from the figures of the Kuropean shell, especially in being 
stouter, and broader anteriorly. 
Diaphana nitidula (Lovén) Verrill. 
Cylichna nitidula Lovén, op. cit., p. 142, 1846. 
Utriculus nitidulus G. O. Sars, op. cit., p. 286, pl. 17, fig. 13, pl. 26, fig. 3, pl. xi, 
fies. 6 a, 6 b (gizzard, &c.). 
Diaphana nitidula Verrill, Amer. Journ. Sci., xx, p. 392, Nov., 1880; Proe. U. S. 
Nat. Mus., iii, p. 381, 1880. 
This shell has been dredged by us in several localities, in deep 
water off the coast of New England and Nova Scotia, and by Mr. 
Whiteaves in the Gulf of Saint Lawrence. It was taken at stations 
891, 892, and 894, in 365 to 500 fathoms, off Martha’s Vineyard. 
Amphisphyra globosa Lovén, 1846. 
Diaphana globosa G. O. Sars, op. cit., p. 290, pl. 18, figs. 3c, 4, pl. xi, fig. 12 (den- 
tition). 
Amphisphyra globosa Verrill, Amer. Journ, Sci., xx, p. 392, Nov. 1880; Proce. U.S. 
Nat. Mus., iii, p. 382, 1880. 
Specimens agreeing in all respects with Sars’s figures, referred to 
_ above, were dredged at stations 870, 87!, and 894, in 115 to 365 
fathoms, off Martha’s Vineyard, 1880; station 947, in 312 fathoms, 
1881. 
