A. E. Verrill — Mollitsca of the New England Coast. 247 



Measurements. 



Length to end of sessile arms 123"". 



Length of body 52 



Length of head to base of dorsal 



arms - _ 24 



Breadth across body and fins 76 



Breadth of body 40 



Breadth of head 44 



Diameter of eyes 25 



Diameter of pupil. 8 



Length of fins, longitudinally 40 



Length of insertion of fins. 35 



Breadth of fins, transversely 18 



Insertion of fin to front edge of 



mantle 9 



Length of dorsal arms 43"", 



Length of 2d pair 45 



Length of 3d pair 50 



Length of 4th pair 49 



Length of tentacular arms 75 



Length of club 18 



Breadth of club 4 



Diameter of tentacular arms 4 to 5 



Diameter of largest suckers of ses- 

 sile arms 1-5 



Diameter of dorsal arms 6 



Diameter of lateral arms 6"5 



Diameter of largest suckers 2 



Station 1124, in 640 fathoms, off Martha's Vineyard, 1882. 

 The only specimen previously known was from off Newfoundland, 

 in about 150 fathoms, probably from a fish stomach. 



AllopOSUS mollis Verrill. 



American Joum. Sci., vol. xx, p. 394, 1880; these Transactions, vol. v, p. 366, pi. 

 50, figs. 1, la, 2, 2a, pi. 51, figs. 3, 4. 



This species was taken by the Albatross, in 1883, at station 2034, 

 in 1346 fathoms, one young; station 2036, in 1735 fathoms, frag- 

 ments; station 2037, in 1731 fathoms (one arm). 



At station 2034, in 1346 fathoms, a very young female specimen 

 of this species was taken by the Albatross in 1883. In form and 

 general appearance it differs but little from the large specimens 

 described and figured by me. But the body is relatively shorter and 

 broader, and the chromatophores are larger, more regularly scattered 

 and more distinct. 



Total length, 29'^'" ; length of mantle beneath, 10"""; length of 

 body and head to front side of eye, 17^™ j breadth of body, 13™™. 



Argonanta argo Linne. 



YSrrill, these Transactions, vol. v, pp. 364, 420. 



Plate XXVIII, figures 1, la, 1&. 



A young living specimen of this species was captured while swim- 

 ming at the surface, about 100 miles south of the eastern end of Long 

 Island, by Dr. Kite, surgeon of the Fish Hawk. From this specimen, 

 after it had been in too strong alcohol for two or three days, the fig- 

 ures on Plate xxviii were made. Owing to the strength of the 



