LOLIGOFSIDiE : LOLIGOPSIS. 
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Fam. II. LO LIGOPSI DJE. 
Animal membranaceous, semipellucid. 
Body elongate, tapering behind. Mantle supported by three mus- 
cular bands ; one medial dorsal under the end of the shell, 
and one on each side of the ventral surface. Fins caudal, 
terminal, semicircular; their united outlines oval or rounded. 
Ears without any crest. 
Head small, broad. Eyes lateral, anterior, peduncled, naked, 
without any lacrymal sinus. Buccal membrane very short 
No buccal, brachial, nor anal aquiferous pores. 
Siphuncle without any superior central band ; no internal valve. 
Shell internal, horny, elongated, slender, pennate, solid. 
Loligopsidse Gray , Syn. B. Mus. 1840, Proc. Zool. Soc. 1847, 205. ; 
IP Orb, Moll. Cuba , i. 7., Ann. Sc. Nat. xvi. 1841, Moll. Viv. et 
Fos. i. 367. 1847. 
Teuthidse (pars) Owen , Trans. Zool. Soc. ii. 2. 1838. 
1. LOLIGOPSIS. 
Body very much elongated, conical, attenuated. Mantle sup- 
ported by three muscular bands ; one medial, dorsal, under the 
end of the shell, and one on each side of the ventral surface. 
— Head small, broad, very short, much depressed, narrow 
behind. Eyes peduncled, very large, naked. Buccal mem- 
brane seven-lobed, without cups. — Sessile arms conical, subu- 
late, very contracted, rounded, very unequal. Cups oblique, 
peduncled, in two alternating series; rings smooth. Tentacular 
arms not retractile, slender, marginal, dorsal. — Siphuncle very 
large, broad, elongate, nicked on the sides, without any central 
superior band or internal valve. — Shell internal, horny, flexible, 
slender, keeled above; very narrow, lanceolate, thickened at 
the tip. — Living in the high seas. 
Loligopsis (Calmaret) Lamck. Extr . d. Cour. 1812; Ferussac et 
IT Orb. Ceph. 1839. 
Loligopsis Lamck. Hist. vii. 659. 1822; IP Orb. Moll. Cuba , i. 7. 
1841, Moll. Viv. et Fos. i. 368.; Grant , Trans. Zool. Soc. Lond. 
i. 21. Anat. 1847 ; Owen , Trans. Zool. Soc. ii. 2. 
Leachia Le Sueur, Jour. Acad. Philad. ii. 89. 1821, not Risso, E.M. 
1826; “Lesson,” Blainv. Malac. 1825. 
Loligo sp. Blainville, Journ. de Phys. 1823. 
Perothis Eschscholtz , MS. 1827 ? ; Bathhe, Mem. Acad. Peter sb . 
par divers savans , ii. 1835.| 
