MUSEUM OF COMPARATIVE ZOOLOGY. Ill 



posite margin of the club appeiu-s to have borne several rows of small suckers, 

 but this 2'art is badly injured. 



A series of minute papilla;, apparently the remnants of suckers and rounded, 

 alternating, connective tubercles (Fig. 1, e), extends downward for more than 

 half the length of the tentacular arm. The surface adjacent to them is, at 

 first, crossed by transverse grooves or furrows ; but farther down the arm this 

 modified surface is broader, and there may have been two or more series of 

 suckers, Avhieh have been destroyed. 



MEASUREMENTS IN MILLIMETERS. 



Length of body 78 Breadth of tentacular arms . . 5 



Length of dorsal arms .... 58 Breadth of lateral arms, at base . 6 



Length of 2d pair of arms ... 86 Breadth of dorsal arms .... 5 



Length of 3d pair " ... 87 Diameter of eyeball 19 



Length of ventral arms .... 85 Length of connective cartilages on 



Length of tentacular arms . . . 225 siphon 14 



Length of club 29 Breadth of the same 4 



Breadth of club 7 



A specimen of this remarkable st|uid, in bad condition, was taken from the 

 stomach of a fish trawled at Station 893, in 372 fathoms, about 100 miles 

 south of Newport, R. I. It was accompanied by a specimen of Ommastrephes 

 illecebrosus, in a similar condition. It has lost its pen, its epidermis, and most 

 of the horny hooks and sucker-rings ; the head is detached from the body, and 

 the caudal fin is nearly destroyed ; the eyelids are gone, but the eyeballs re- 

 main. The description must, therefore, remain incomplete till other specimens 

 can be obtained. 



CALLITEUTHIS Verkill. 



Amer. Jour. Sci., XX. p. 393, for Nov. 1880 (published Oct. 25) ; Proc. Nat. Mus., 



IIL p. 362, 1880. 



Body short, tapering to a small free tip ; fins small, united behind the tip of 

 the body. Siphon united to the head by a pair of dorsal bauds; not sunken in 

 a furrow ; an internal valve. Mantle united to the sides of the siphon by sim- 

 ple, linear, longitudinal, lateral ridges, and corresponding connective cartilages 

 on the sides of the siphon, which are long-ovate, with a raised margin all 

 around. A dorsal elongated connective cartilage on the neck, opposite the pen. 

 A pair of subdorsal muscular commissures within the mantle cavity. Arms 

 long, not webbed ; suckers in two rows, largest on the middle of the lateral 

 and dorsal arms ; homy rings of suckers smooth on most of the suckers, simply 

 dentate on the distal ones. Eyes large, with rounded openings and thin, free 

 lids. Buccal membrane simple, sac-like, with seven connective bridles. In- 

 ternal anatomy of the female similar to that of Ommastrephes. Oviducts and 

 nidamental glands synmieti'ically developed on the two sides. Pen broad, 

 lanceolate, as in Loligo. 



