OP THE 'POECUPINE' EXPEDITIONS. 401 



The head is at once distinguished from the previous form by the large size of the 

 eyes, both anterior and posterior. The palpi have minute papillee. The scales are fur- 

 nished with the same sparsely distributed clavate papillae, but differ in having a close 

 array of short acicular spines (which are much more numerous than represented by Prof. 

 Sars) scattered over the surface. The ventral cirri have short clavate papillae. 



The dorsal bristles are slightly yellowish, and, though as conspicuous in size as those 

 of A. jinmarcliica, are much less acutely tapered at the tip, and have closer rows of 

 spines. The contour and curves also diverge. The superior ventral bristles have 

 slightly shorter tips than in A. finmarcMca; and the rows of spines are not so distinctly 

 separated. The tip is similar, viz. slightly hooked ; but the spines become so elongated 

 toward the tip that they stand out on each side like a series of filaments (PL LXXII. 

 fig, 3, and the same bristle more highly magnified in fig. 4, the specimen being from 

 the middle of the foot). 



Phtllantinoe mollis, n. s. Dredged in 539 fathoms in the Atlantic, 1870. The 

 fragmentary specimen measured about f inch. There are about forty segments besides 

 head and tail. The whole body is soft and delicate ; and very few bristles were found 

 in any of the feet. The dorsum has a brownish colour throughout; and the pigment 

 posteriorly is somewhat regularly disposed in the segments. The body is character- 

 istically elongated, and tapers much posteriorly. The head diflers from most of its 

 allies in the very large size and situation of the eyes. The posterior pair lie quite at 

 the posterior border; the anterior, which are about twice as large as the former, occupy 

 the lateral region of the cephalic prominence. The pairs are comparatively close to 

 each other, and appear to have lenses. The median fissure for the tentacle is deeply 

 marked, and almost splits the head into halves. No scales were present. 



The structure of the feet could not be fully made out from the condition of the spe- 

 cimen ; but they seem to differ considerably from the ordinary types. Anteriorly the 

 dorsal division is much elevated in many as a soft process, probably for the attach- 

 ment of the scale ; while the ventral branch posteriorly projects as a long soft lobule. 

 The dorsal bristles (PI. LXXII. fig. 5) are short and stout, very translucent, considerably 

 curved, and with prominent rows of spines. The specimen figured is one of the largest 

 and least curved. There is a smooth portion at the tip. The ventral bristles (PI. LXXII. 

 fig. 6) are extremely slender and translucent, both as regards shaft and tip. The latter 

 is long and tapered, and ends in a slender point, which in some is slightly bent. The 

 spinous rows have the usual arrangement, and disappear before reaching the extremity. 

 There is no form which appears to resemble this species. 



Lepidasthenia blainvillii, And. & Ed. Dredged in 45 fathoms, eight miles oft' 

 Cape Sagres, in 1870. An elongated form with distinct characters. The colours have, 

 for the most part^ disappeared ; but the dorsum is still somewhat brownish along the 



