1. E. Verrill — Catalogue o f Marine Mollusca. 
555 
Cavolina longirostris (Les. MSS.. Bv.) H. & A. Ad. 
Ilyalcea longirostris Blaiuv., Diet. Sci. Nat., xxii, p. 81. 
Rang. Hist. Nat. Pterop., p. 41, pi. 2, figs. 7-10, 1852. 
Cavolina longirostra Gray, Catal. Moll. Brit. Mas., Pteropoda, p. 8. 
Cavolina longirostris Verrill, Amer. Journ. Sei., xx, p. 392, Nov., 1880 ; Proc. U. S. 
Nat. Mus., iii, p. 392, 1880. 
This- small but elegant' species occurred frequently in our dredg- 
ings, 70 to 105 miles off Martha’s Vineyard, but not in large num- 
bers (stations 867 , 870 , 871 , 876 , 891 , 892 , 894 , 895 , in 1880 ; 949 , 
994 , 997 , 999 , 1038 , in 1881 ). 
Cavolina inflexa (Les.) Gray. 
Hyalcea inflexa Lesueur; Blainv., Diet. Sci. Nat., xxii, p. 80. 
Cavolina inflexa Verrill, Proc. U. S. Nat. Mus , iii, p. 392, 1880. 
One perfect and full-grown specimen from station 894 . 
Clio pyramidata Browne; Linne; Gmelin. 
Cleodora pyramidata Peron & Les.; Lamarck. 
Cleodora lanceolata Rang, Ann. des Sci. Nat., xvi, p. 497, pi. 19, fig. 1. 
Clio pyramidata Gray, Catal. Moll. Brit. Mus., Pteropoda, p. 12, 1850. 
Verrill, Amer. Journ. Sci., xx, p. 392, Nov., 1880; Proc. U. S. Nat. Mus., iii, p. 
392, 1880. 
Several fresh but somewhat broken specimens of this species oc- 
curred at stations 865 , 891 to 894 , off Martha’s Vineyard. 
Pleuropus Hargeri Verrill, sp. nov. 
Pleuropus sp., Smith & Harger, Trans. Conn. Acad., iii, pp. 2G, 27. 
Shell small, translucent, pale yellowish white, compressed, with 
the two lips of the aperture nearly equal, forming nearly a semi- 
circle in the larger specimens and more than half a circle in the 
younger ones. Back of the lateral angles, where the aperture termi- 
nates, the body of the shell is triangular, with slightly concave sides, 
and tapers off gradually posteriorly to a caudal process, about as 
long as the shell itself, subacute at tip, and often bent somewhat 
to one side. The animal has three long, slender, subfiliform pro- 
cesses on each side, which project from the lateral angles of the 
aperture; the younger specimens have but two of these. 
Off George’s Bank, N. lat. 41° 25'; W. long. 65° 5' to 30', Sept. 
15, 1872, taken both at 10 to 12 o’clock a. m. and at 2 p. ,\r., by 
Messrs. S. I. Smith and Oscar Barger on the “ Baohe.” I have dedi- 
cated the species to Mr. Harger. 
Tuans. Conn. Acad., Vol,. V. 
07 
.Iuly, 1882. 
