30 CHIROTEUTHIDA. 
Louicopsis, Lamarck, 1812. 
Etym.—Loligo, and opsis, like. 
Syn.—Leachia, Lesueur, 1821; Taonius, Steenstrup, 1861; 
Desmoteuthis, Verrill, 1882. 
Distr.—8 sp., pelagic. Northern Atlantic, Mediterranean, 
Indian and Pacific Oceans, Japan. JL. guttata, Grant (xxvi, 35). 
Body long, attenuated ‘behind, with large fins; siphon not 
valved; tentacles long and slender. 
PEROTIS, Esch., 1827. Sides with rows of acute tubercles ; 
shell with solid tip. 2 sp.; Indian Ocean, tropical Atlantic. 
Famity CHIROTEUTHID &. 
CHIROTEUTHIS, Orb., 1839. 
Etym.—Cheir, the hand, and tewthis, a calamary. 
Distr.—2 sp. Atlantic and Mediterranean : on gulf-weed. 
C. Veranyi, 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- 
gopside. 
CALLITEUTHIS, Verrill, 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. C. reversa, Verrill 
(xxiv, 14). New England. 
Bracuioreutuis, Verrill, 1882. 
Distr.—C. Beanti, Verrill. Off Mirth s Vineyard, 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. 
