MUSEUM OF COMPARATIVE ZOOLOGY. 105 
also trawled in some numbers, and of both sexes, by the U. S. Fish Commission, 
this season, off Newport, R. L, in 155 to 365 fathoms ; and in November by 
Lieut. Z. L. Tanner, on the “Fish Hawk,” off the mouth of Chesapeake Bay, in 
157 fathoms. 
Tt had previously been taken, by the dredging parties of the U. S. Fish Com- 
mission, in the trawl-net, at various localities, in 1877, 1878, and 1879, in 50 
to 140 fathoms, off Massachusetts Bay, in Massachusetts Bay, off Cape Cod, 
off Cape Sable, N. S., and off Halifax. It has been brought in by the fisher- 
men of Gloucester, Mass., from the banks off Nova Scotia and Newfoundland. 
One of the specimens (No. 16) is a young female differing somewhat from 
the others in having the arms shorter, with the suckers more crowded, so that 
they apparently form more than two rows. Possibly this should be referred to 
R. Hyatti Verr. Its back is smooth. All three specimens differ somewhat from 
those taken farther north, in shallower water, in having larger eyes and shorter 
and stouter arms, 
The males in this genus differ from the females in the relatively greater size 
of the suckers on the middle of the lateral and ventral arms, those toward the 
tips becoming abruptly smaller, while in the female they decrease more gradu- 
ally (see Plate III. figs. 3, 4). 
This species very closely resembles the Rossia glaucopis Lovén, of Northern 
Europe, as figured by Q. O. Sars. The latter is, however, more papillose, and 
has smaller eyes and head, if correctly figured. 
SPECIMENS EXAMINED, 
No, Stat, Locality, Fath. When rec'd, Specimens, 
14 310, N: Lat. 89° 59” 16", W. Long. 70° 18’ 30" 260 1880 19 ad. 
15 320, N, Lat. 32? 88’ 15”, W, Long. 779 80” 10” 257 1880 19 ad. 
16 321, N. Lat. 329 43' 25", W. Long. 77° 20' 80" 233 1880  ?19 jun. 
Eledone verrucosa sp. nov. 
Plates V. and VI. 
A stout species covered above with prominent, rough, wart-like tubereles, 
and with a circle of the same around the eyes; four or five of those above the 
eyes are larger and more prominent. Body thick, broad ovate, swollen be- 
neath, moderately convex above, obtusely rounded posteriorly. 
Male. Head as broad as the body, whole upper surface of body and head to 
base of arms covered with prominent and persistent, unequal warts, which are 
roughened by sharp conical papilla, eight or ten on the larger warts, but only 
two or three on the smaller ones; the warts diminish in size anteriorly, and on 
the sides, before they disappear ; around the eyes they form irregular circles ; 
just above each of the eyes there are two much larger ones, bearing more than 
twenty conical papillæ ; there is one before and one behind these of somewhat 
smaller size. Eyes large, the lower lid purple and thickened, overlapping the 
upper one, which is thin and whitish. 
