30 CHmOTEUTHID^. 



LoLiGOPSis, Lamarck, 1812. 



Etym. — Loligo, and opsis^ like. 



Syn. — Leachia, Lesiieur, 1821; Taonius, Steenstrup, 1861; 

 Desmoteuthis, Verrill, 1882. 



Distr. — 8 sp., pelagic. Northern Atlantic, Mediterranean, 

 Indian and Pacific Oceans, Japan. L. guttata^ Grant (xxvi, 35). 



Bod}^ long, attenuated behind, with large fins ; siphon not 

 valved ; tentacles long and slender. 



PEROTTS, Esch., 182*7. Sides with rows of acute tubercles ; 

 shell with solid tip. 2 sp. ; Indian Ocean, tropical Atlantic. 



Family CHIROTEUTHID^. 



Chiroteuthis, Orb., 1839. 



Etym. — Gheir, the hand, and teuthis^ a calamary. 



Distr. — 2 sp. Atlantic and Mediterranean ; on gulf-weed. 

 C. Vei'anyi, Fer. (xxvi, 31, 32). * 



Body long, attenuated ; arms long, connected by a short basal 

 web, with two rows of small, long-pedunculated suckers ; ten- 

 tacles very long and narrow, covered their whole length with 

 scattered suckers, the clubs with four rows of long-pedunculated 

 suckers. Pen slender in the middle, slightly winged at each end. 



The great cephalic development of the animals of this very 

 restricted genus, the immense length of the tentacles and the 

 peculiar armament of their clubs, and the gladius expanded at 

 each end, form excellent distinctive characters from the Loli- 

 gopsidse. 



CALLiTEUTHis, Yerrill, 1880. Body short, tapering to a free tip ; 

 fins small, united behind ; siphon united to head by two dorsal 

 bands, and having an internal valve ; mantle connected to sides 

 of siphon by lateral elongated cartilages 'and grooves; arms 

 long, free, suckers in two rows, largest in middle of lateral and 

 dorsal arms ; eyes large, with oval openings ; buccal- membrane 

 simple, sack-like; pen broad, lanceolate. G. reversa^ Yerrill 

 (xxiv, 14). New England. • 



Brachioteuthis, Yerrill, 1882. 

 Distr. — G. Beanii, Yerrill. Ofl[' Martha's Yinej^ard, Mass, 

 Allied to Chiroteuthis ; differs in having the lateral connective 

 cartilages of the siphon simple, long-ovate, and the corresponding 

 cartilages of the mantle in the form of simple, linear ridges ; a 

 rhombic caudal fin ; pen with a simple, linear, anterior portion, 

 suddenly expanding into a much broader, lanceolate, posterior 

 portion, which is naturally infolded ; arms slender, the ventral 

 ones not distinctly obliquely compressed ; tentacular club with 

 a spoon-like cavity at tip. 



