476 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
regular circular curve approximating three fourths of a circle, a char- 
acter serving to distinguish this from the other New England species. 
Wall of the anterior part of the stomach plicated with irregular con- 
volutions so as to suggest the appearance of the human brain. Pos- 
terior part smooth-walled, tapering gradually off into the intestine. 
Kidney of moderate size with a slightly elongated bean-shaped 
outline. 
The ovary, forming the central part of each gonad, has an elongated 
flask-shaped outline; its walls have transverse plications which deeply 
constrict the interior cavity. The eggs are small and are mostly 
imbedded in or attached to the thick glandular walls of the ovary. 
That part of the wall lying against the mantle is, however, thin and 
bears few or no eggs. About the margins of the ventral portion of 
the ovary the testis is situated. It consists of dense masses of small, 
distinct, mostly two- or three-lobed glands. These glands extended 
farther on the anterior than the posterior margin of the left ovary 
in the individuals studied, and the long axis of the left gonad is nearly 
vertical (see text-fig. 4). The right gonad has an inclined portion, 
and is somewhat narrower and longer than the left, the male glands 
extending along the ventral margin of its ovary (between the latter 
and the kidney) but reaching also around its anterior (closed) end and 
a little way along the dorsal margin. The difference in the shape of 
the two gonads is less pronounced than in C. Iutule7iia. 
The range of this species, as far as the writer can give it from speci- 
mens actually examined, is from Cape Ann (Annisquam, Mass.) to 
Beaufort, N. C. Verrill and Smith (1873) record it from Casco Bay, 
Me., though less common there than farther south, but a bottle of 
Verrill's specimens, in all probability the very ones upon which the 
record was based, prove on examination to be a different species. 
Nor were any specimens found in the extensive collections made at 
other points on the coast of Maine. 
A long list of localities where it is found in greater or less abundance 
might be given. Among those of specimens which the writer has 
himself dissected are: Annisquam, near Boston, Wood's Hole, and 
Vineyard Haven, as well as other localities about Vineyard Sound, 
and Buzzards Bay, on the Massachusetts coast; off Newport (6 
fathoms), and Point Judith 12^ (fathoms), Rhode Island; Stoning- 
ton, Noank, and New Haven, Connecticut; Bay Shore and Fire 
Island on the south shore of Long Island, New York City (the type 
