56 CATALOGUE OF CEPHALOPODA. 



Onychoteuthis Krohnii Verany, Ceph. ex Sicilia, t. 1. f. 3. 

 Hab. Sicily. 



** Body shagreened. 



3. Ancistroteuthis Dussumieri. 



Body elongate, subcylindrical ; very finely shagreened with very 

 crowded, small, acute tubercles. Fins short, together rhom- 

 boidal. Sessile arms unequal ; in length, 2, 4, 3, 1 ; with a 

 longitudinal groove. Tentacular arms very slender, without 

 any club, with thirty hooks in two series ; rings of cups oblique, 

 entire. Shell narrow ; the apex with a very long conical very 

 acute solid horny tip. 



Onychoteuthis Dussumieri D'Orb. Moll. Viv. et Fos. i. 392.; 

 D'Orb. et Feruss. Ceph. Acet. Onych. t. 13. 1839. 



Hab. Indian Ocean, 200 miles north of Mauritius. 



8. ONYCHIA. 



Body red, spotted. — Tentacular arms scarcely enlarged at the end, 

 with two longitudinal series of claw-like hooks in the centre of 

 the club, and a row of pediceled cups on each side furnished with 

 horny rings. — Shells lanceolate, pennate, dilated above and 

 narrow in front, with a central ridge. — Otherwise like Onycho- 

 teuthis. 



Onvkia LeSueur, Jour. Acad. N. S. Philad. i. 98. 1821, ii. 296. 



1822. 

 Onychia Latr. Fam. Nat. 1825 ; Berthold, 1827 ; Gray, Proc. Zool. 



Soc. 1847. 

 Onychoteuthis sect. ii. If Orb. Moll. Viv. et Fos. i. 386. 

 Onvchoteuthis sp. Ferussac, Tab. Syst. 28. 1821; D'Orb. et Feruss. 



Ceph. Acet. 1839. 

 Sepiola sp. LeSueur, 1. c. 

 Cranchia Peron. 



Cranchia sp. Ferussac, Diet. Class. H. N. v. 

 Loligo sp. Peron. 

 Sepia sp. Ohen. 

 Sepiola sp. LeSueur. 



* Fins terminal, very short. Cups sid>equal. 



1. Onychia Cardioptera. 



Body large, oblong, narrowed, and prolonged behind, variegated 

 with red spots; fins round, terminal, together subrhomboidal. 

 Sessile arms unequal ; in length, 3, 2, 4, 1 ; cups in two alter- 

 nating lines. Tentacular arms long, scarcely enlarged at the 

 end. Shell pennate, rather broad, sides rounded. 



