40 CATALOGUE OF CEPHALOPODA. 



* Smooth. — Loligopsis. 



1. Loligopsis pavo. 



Body smooth, very much elongated, conical, spotted with red. 

 Fins terminal, short, soft, narrow, outline together heart-shaped, 

 not notched in front. Sessile arms short, slender, three upper 

 pair rounded. Cups much depressed, broad, oblique ; rings 

 smooth exteriorly, inner edge divided into square teeth. Ten- 

 tacular arms slender. Shell elongate, very thin, nearly gelati- 

 nous, attenuated anteriorly, lanceolate posteriorly. 



Loligo pavo LeSueur^ Journ. Acad. Nat. Sc. Philad. ii. 96. n. 5. t. 



ad p. 97. 1821 ; Blainv. Journal de Phys. 1823, 33., Diet, des 



Sc. Nat. xxvii. 145. ; Feruss. Diet. Class, iii. 67. n. 16. 

 Loligopsis pavo D'Orh. 8f Feruss. Ceph. Acet. Calmars^ t. 6. f. 1. 



4., Loligopsis, t. 4. f. 1. 8. 1839; D'Orh. Moll. Viv. et Fos. i. 



369. t. 23. f. o— 10. 



Hah. Atlantic Ocean, Arctic Seas, Madeira. 



2. Loligopsis ellipsoptera. 



Body funnel-sloped, semipellucid ; hinder part of the body elon- 

 gate, tapering. Fins depressed, semicircular, rounded, outline 

 together oblong. Siphuncle very large. Arms very unequal ; 

 comparative length, 2, 3, 1,4; the second pair longest ; dorsal 

 and ventral pairs small. Shell slender, penniform, horny. 



Loligopsis ellipsoptera Adams, Zool. Voy. Samarang, Mollusca, t. 2. 

 t. 1. f. 1. 



Hab. North Atlantic. 



Mr. Adams only describes eight arms, probably the peduncled 

 arms were destroyed. Scarcely appears to differ from Z. cyclura. 



3. Loligopsis Zyg^na. 



Fins half-oblong, together nearly square, narrower in front, 

 broader and sinuous behind. Sessile arms, order of length, 1, 2, 

 4, 3 ; two upper pair longest, two lower short; the dorsal pair 

 webbed at the base, rest free. Tentacular arms with small cups 

 scattered on the elongated peduncles. 



Loligopsis Zygaena Verany, Cephal. ex Sicily, t. 1. f. 2. 

 Hab. Sicily. 



4. Loligopsis vermicolaris. 



Neck very thin and long. Fins together subcordate. Sessile 

 arms with very small distant cups in alternate series ; ten- 



