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. I., 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. 



It 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 somewliat from 

 the others in having the anns shorter, with the suckers more crowded, so that 

 they apparently form more than two rows. Possibly this .should be referred to 

 E. 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 Loven, of Northern 

 Europe, as figured by G. 0. 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. 39° 59' 16", W. Long. 70° 18' 30" 260 1880 1 9 ad. 



15 320, N. Lat. 32° 33' 15", W. Long. 77° 30' 10" 257 1880 19 ad. 



16 321, N. Lat. 32° 43' 25", W. Long. 77° 20' 30" 233 1880 ?19 jun. 



Eledone verrucosa sp. nov. 



Plates V. and VI. 



A stout species covered above with prominent, rough, wart-like tubercles, 

 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 papillae ; 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. 



