MUSEUM OF COMPARATR''E ZOOLOGY. 



lo: 



smaller, sharp denticles ; outside of the horny rim the marginal membrane is 

 covered with a regular circle of minute horny plates. 



The transverse breadth of this ariu-fragment at the thickest end is 9 mm.; 

 across internal face, with the la,tei:al membranes extended, 15 mm.; length of 

 transverse mu.scular bands of the marginal membranes, 4 mm.; diameter of the 

 largest suckers, 4 mm. ; height of cups, 5 mm. Number of larger teeth on the 

 sucker-rings, 14 to 17; of smaller ones on the inner edge of the rim, 8 to 10. 



Cheiroteuthis lacertosa Verkill. 



Trans. Conn. Acad., V., p. 408, VI 56, ft^f. 1-1 f, 1881 ; Report U. S. Fish Commis- 

 sion for 1870, [pp. 110, 209,] PI. 4G, figs. 1-1 f, 1882. 



A specimen of tliis rare species, somewhat smaller than the original type- 

 specimen, was obtained. It lias ijoth tentacular arms with the clubs in good 

 condition. It agrees closely with the type-specimen, already described in de- 

 tail, and figured by me, in all its essential characters. In color it differs only 

 ill being somewhat paler, and in having rather distinct pale, or whitish, small 

 round spots scattered over the dorsal surface. The row of dark spots along 

 each of the ventral arms is very distinct. 



Mt'asnrrmr.nts of Clin'rntcuthis lacertosa. 



Length of body to dnr>al edge of m-iutle, . 



Breadth nf body, ........ 



Len''-th of caudal fin, ...... 



Transverse breadth across tips, about .... 



Length of head from dorsal cartilage to base of arms, 



Breadth of head at eyes, 



Length of diii'sal anus, ...... 



" •• •• 2d pair, 



3d pair, .... 



" " " 4th pair, 



Diameter of dorsal arms at liase, " . , . . 

 " '• '• '^ 2d pair, . 



" 3d pair, 

 '• 4lh pair, . 

 Length of tentacular arm, ...... 



Length of club, ........ 



Its breadth, in the middle ..... 



Diameter of largest suckers of lateral arms, . 

 " " " ventral arms, 



Station 230, in 404 fathoms, off St. Vincent, W. I., 1878-79. 



A very large .specimen of this species has recently been taken by the U. S. 

 Fish Commission steamer "Albatross," at Station 2074, in 1309 fathoms, N. Lat. 

 41° 43', W. Long. 6o° 15' 20". 



