388 REPORT OF COMMISSIONER OF FISIL AND FISHERIES. [682] 
rad, was accompanied by a short description of recent specimens from 
Rhode Island and New Jersey. He gave C. convexva Say as a synonym, 
however, remarking that it “appears not to differ fromthe C. convexa 
of Say, but I have changed the name because M. Brogniart had pre- 
viously applied it to a very dissimilar species.” More recently, how- 
ever, he has indicated his belief that the two are distinct (Catal. Miocene 
Shells, in Proc. Phil. Acad., vol. xiv, p. 575, 1862), although he recog- 
nizes the ‘¢ Sayana” as a Miocene shell, but he has not pointed out the 
differences, if any exist, so far as known tome. Should the recent shell 
prove to be distinct from the fossil one described lny Say, it should 
therefore bear the name Callista Sayana. : 
In this species the animal is white, or pale salmon-color. The border 
of the mantle sometimes protrudes considerably beyond the edge of the 
shell, and is delicately undulated or frilled; the siphon tubes, in full 
expansion, are smooth and rather longer than the shell, and are united 
quite to the ends; the orifices are simple, without apparcnt papilli, 
and the branchial is considerably Jarger than the other; a well-marked 
groove extends along the whole length of the siphon, indicating the 
partition between the tubes. 
TOTTENIA GEMMA Perkins. Plate XXX, fig. 220. (p. 359.) 
Proc. Boston Soc. Nat. Hist., vol. xiii, 1469 (in errata); by error, Tolleniana 
(p. 14"). Venus gemma Totten, Amer. Jour. Science, vol. xxvi, p. 367, figs. 2a, d, 
1x34. Gemma gemma Deshayes, Catal. Conch. Biv., British Museum, p. 113, 
1853; H.and A. Adams, Genera, vol. ii, p. 419, Plate 107, fig. 3. Gemma Totleni 
Stimpson, Check-List, p. 3, 1460. 
South Carolina to Labrador. Very abundant in Long Island Sound, 
Buzzard’s Bay, Vineyard Sound, Nantucket, and Massachusetts Day ; 
common in Casco Bay, and at Grand Menan Island. Nova Scotia (Willis). 
Prince Edward’s Island(Dawson). Indian Harbor, Labrador (Packard). 
Fort Macon, North Carolina (Coues). 
An allied species (7. spharica H.C. Lea, sp.) occurs in the Miocene of 
Virginia. 
TOTTENIA MANHATTENSIS Verrill. 
Venus Manhatlensis Prine, in Jay’s Catalogue of Shells, ed. iv, supplement, p. 
466, 1852. Venus (Gemma) Manhottensis Prime, Annals Lye. Nat. Hist. N. Y., 
vol, vii, p. 472 (figure), 1662. Gemma Manhattensis Gould, Invert., ed. ii, p. 13) 
fig. 449, 
North Carolina to Vineyard Sound. IJfell Gate (Prime). Greenport 
and Huntington, Long Island (S. Smith). Near New Haven, rare. 
Fort Macon, North Carolina (Yarrow). . 
I have seen but few specimens of this shel], and aim not fully satistied 
that it is distinct from the preceding. Its color is not constant, some 
specimens being pale straw-color, others purplish. Mr. Prime originally 
described it as white. 
