396 A. E. Verrill — Marine JVemerteans of New England, etc. 



form and are often almost united to the front groups by a few 

 ocelli scattered between them. 



Color of body, above, clear orange-red, paler beneath. 

 Length of the specimen described above, from life, 18 to 20"'"'; 

 breadth 5"'™. Massachusetts Bay to Bay of Fundy, in various local- 

 ities, low- water to 112 fathoms. The specimens above described 

 were taken at station 38, 1877, in 112 fathoms, off Grand Menan, 



Amphiporus OChracens Verrill, Check List Invert., 1879. 



Cosmocephala ochracea Verrill, Invert, of Vineyard Sound, etc., pp. .^1, 336, pi. 

 XIX, figs. 95, 95ff, 1873. 



Plate xxxiii, figures 5, 6; Plate xxxtx, figure 8. 



Body elongated, moderately slender, somewhat flattened, but 

 thick, with the margins rounded, obtuse at both ends, or subacute 

 posteriorly ; broadest and often swollen anteriorly; gradually and 



Fig. 2. Amphiporus ochraceus. Head and part of body, to show ocelli, enlarged. 



sliglitly tapering posteriorly; the integument is translucent and the 

 internal organs show quite distinctly ; lateral (saccular) organs 

 voluminous, extending nearly the whole length of the body along each 

 side, and showing through as dull yellowish white mottlings. Head 

 usually ovate, slightly wider than the body, obtuse; a slight fossa 

 or groove, usually appearing as a whitish line on each side, runs 

 obliquely across the ventral and lateral surface of the head, diverg- 

 ing from the mouth and curving somewhat forward and upward at 

 the sides; another, less distinct, is situated farther forward on each 

 side of the head. Proboscis-pore small and inconspicuous in con- 

 traction; mouth, small. Ocelli numerous, but varying somewhat in 

 number; the anterior ones form a submarginal curved row along 

 each side of the head, anteriorly, but curve inward farther back ; 

 just back of these, on each side, there are usually four distinct pos- 

 terior ocelli, standing two by two, obliquely. Color dull yellowish, 

 or yellowish white, often tinged with deeper yellow or orange ante- 

 riorly, with the median line lighter ; the position of the cephalic 

 ganglions is shown by faint reddish spots between the posterior 

 groups of ocelli. 



Length, 50'"™ to VO'""'; breadth, 2-5'""' to 3"'"'. 



