434 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [224] 



only differ widely in the condition of the eyes, but also in the nature of 

 the hectocotylization of the arms,'and in anatomical characters. 



To one of these groups, containing the family Sepiolidce, I propose to 

 apply the name tiepiolidea. 



The other division, Sepidea, includes the families Sepidce, Loliginidw, 

 IdHosepidcc, and perhaps Spirulidce; but the latter might, perhaps, be 

 best placed with several fossil forms in a division of which it is the sole 

 surviving genus. 



SEPIDEA Verriil. 



The integument extends entirely over the eye, and there is a pore in 

 front of it. Pupil crescent-shaped. Body commonly elongated. Pen 

 various, rarely absent, usually large, broad-lanceolate or ovate, either 

 horny or calcareous (spirally coiled, tubular, and chambered in Spirula, 

 in which it is posteriorly situated). One of the ventral arms of the 

 male is usually hectocotylized. 



Mantle usually with three connective cartilages, rarely with one 

 (dorsal) or three muscular commissures. 



Family LOLIGINID^B. (See p. [131].) 

 Loligo Lamarck. (See p. [131].) 



15. Loligo Pealei Les. (P. [132].) 



16. Loligo (Lolliguncula) brevis Blaiuv. (P. [161].) 



SEPiOTEUTms D'Orbig. (See p. [163].) 



Sepioteuthis sepioidea D'Orb. (Seep. [164].) 



SEPIOLIDEA Verriil. 



In this group the eye-lids may either be entirely free all around, or 

 the upper one may be attached to the eye-ball, Pupil either round or 

 crescent-shaped. Body short, obtuse. Fins lateral, separated. Pen 

 small or rudimentary, sometimes absent. Sucker-rings smooth. Dorsal 

 arms, in the male, usually hectocotylized, one or both. 



Family SEPIOLID2E. (See p. [165].) 



Stoloteuthis Verriil. (See p. [165].) 



17. Stoloteuthis leucoptera Verriil. (P. [165].) 



Eossia. (See p. [167].) 



18. Rossia megaptera V. (P. [173].) 



19. Rossia Hyatti V. (P. [167].) 



20. Rossia sublevis V. (P. [170].) 



Heteroteuthis Gray. (See p. [174].) 



21. Heteroteuthis tenera V. (P. [175].) 



