[629] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. OOO 



most commonly dark olive-green or blackish green above, and somewhat 

 lighter below, the head margined with lighter ; frequently the color is 

 dark liver-brown or reddish brown, and the back is usually crossed by 

 faint pale lines, placed at unequal distances. 



Buzzard s Bay and Vineyard Sound, under stones, between tides, and 

 in 4 to fathoms, rocky bottoms, very common; Casco Bay and Bay of 

 Ftindy ; and northward to Labrador and Greenland. Also on the north 

 ern coasts of Europe to Great Britain. Abundant under stones between 

 tides, and in shallow water. 



The specimens referred to on page 324 as probably belonging to Cere- 

 bratulus, were most likely identical with this species. 



XEMEETES (!) species undetermined (a), (p. 498.) 



Body elongated, moderately stout ; head not distinct from the body. 

 Color uniform bright brownish red. 



Length, 25 1!im . 



Off Watch Hill, Ilhode Island, among rocks, in 4 to 6 fathoms. A 

 species, apparently the same, also occurred in 25 fathoms off Buzzard s 

 Bay. 



This was red with two dark red spots anteriorly, No ocelli were 

 detected. 



S, (?), species undetermined (&). 



Body slender, sub-terete ; head not distinct from bod} r . Ocelli incon 

 spicuous, apparently about three in a row on each side of front of head. 

 Color of head and body, above, brownish red, with a whitish ring around 

 the neck, which recedes in the middle, above. 



Length, 8 mi &quot;. 



Off Watch Hill, with the preceding. 



This is, perhaps, a species of Cosmocephala. 



XEMERTES, species undetermined (c). 



Body slender; head not separated by a constriction. Ocelli very 

 numerous, arranged in a long cluster on each side of the head. Color 

 uniform olive-green above and below. 



Length, 35 mm ; breadth, 1.3 mm to 2&quot; 1 &quot; 1 . 



New Haven Harbor, on the piles of a wharf, in brackish water. 



TETIIASTEHMA AKENICOLA Yerrill, sp. nov. Plate XIX, fig. 98. (p. 

 351.) 



Body sub-terete, long, slender, slightly depressed, of nearly uniform 

 width ; the head is very versatile, usually sub-conical or lanceolate, 

 flattened, occasionally becoming partially distinct from the body by a 

 Blight constriction at the neck. Ocelli four, those in the anterior pair 

 nearer together. The lateral fossae are long and deep slits on the sides 

 of the head ; month or ventral pore small, often sub-triangular, situated 

 just back of the posterior ends of the lateral fossaB. Body deep flesh- 

 color or pale purplish. Length, about 100 mm , in extension. 



