296 A. E. Verrill — JSTortJi American Cephalopods. 



small suckers, toward the tips of the arms, in which the outer edge 

 is divided into a number of small, narrow, blunt teeth. On the ven- 

 tral arms, the suckers are much smaller. Basal web rudimentary ; a 

 narrow, thin, simple membrane along each side, outside the suckers. 

 Tentacular arras rather slender, compi'essed, smooth at base, the ends 

 absent. Color reddish brown. The ventral surface of the body, 

 head, and arms is more ornamented than the dorsal surface, being 

 covered with large, rounded verrucae, their center or anterior half 

 pale, the border, or posterior half, dark purplish brown ; upper sur- 

 face of body Avith much fewer and smaller scattered verrucse ; a cir- 

 cle of the same around the eyes ; inner surfaces of sessile arms and 

 buccal membranes chocolate-brown, tentacular arms lighter; suck- 

 ers pale yellow with a light brown band. Caudal fin white, translu- 

 cent. Iris, in the preserved specimen, brown. Gills with the free 

 edge brown, and a brown line on the outer edges of all the laminae. 



Total length, to end of lateral arms, 133'"™, to base of arms, 67'"'" ; 

 mantle, 51'"'"; of fin, 17'"'"; breadth of fins, 24'"'"; of body, 20'"'"; 

 diameter of eye-ball, 16'"'"; length of dorsal arms, 58"""; of second 

 pair, 67'"'"; of tliird pair, 68'"'"; of ventral pair, 60'"'"; breadth of 

 dorsal arms at base, 5""" ; of lateral, 6'""' ; diameter of largest suck- 

 ers, 1-2'^"". 



Dredged by the steamer " Fish Hawk," of the U. S. Fish Commis- 

 sion, at Station 894, about 100 miles south of Newport, R. I., N. Lat. 

 39° 53' ; W. Long. 70° 58' 30", in 365 fathoms. 



MastigOteuthiS Verrill. 



Bulletin Mus. Comp. Zool., vi, 1881. 



Body elongated, tapering to a point, confluent with the caudal fin 

 posteriorly. Caudal fin very large and broad, rhomboid al, occupy- 

 ing about half the length of the body. Mantle fastened to the base 

 of the siphon by an ovate, ear-shaped, elevated cartilage, on each 

 side, fitting into corresponding deep, circumscribed pits on the base 

 of the siphon. Siphon with a bilabiate aperture, an internal valve, 

 and a pair of dorsal bridles. Eyes large, with round pupils; lids 

 free, thin, apparently with a very small anterior sinus. Arms very 

 unequal, the ventral ones much the longest. Suckers small, in two 

 regidar rows. Tentacular arms long and round, tapering to the tips, 

 shaped like a whip-lash, without any distinct club; the distal portion 

 is covered nearly all around with exceedingly numerous and minute 

 suckers, which leave only a very narrow naked line along the out- 

 side. Pen narrow and bicostate anteriorly, very slender in the mid- 



