LOLIGID^: SEPIOTEUTHIS. 81 



e. Shell of c. In spirits. 



/. ? Shell dry. (Probably of this species.) 



D'Orbigny, in his description, says the shell is without any 

 lateral ridges or thickening, but his specific character is (lateribus 

 incrassatis). Both our specimens have three or four small cups, 

 forming a single line on the angles of the buccal membrane ; and 

 they show that the rings, on which M. D'Orbigny appears to place 

 much reliance, change their character with the age of the spe- 

 cimens. 



** Buccal Membrane without any Cups. 

 ■j" Shell very thin, not thickened on the Edges. 



6. Sepioteuthis sepio'idea. 



Body ovate, oblong, spotted with violet, acuminated behind. Fins 

 commencing some distance behind, outline subrhomboidal. 

 Sessile arms subulate, slender, unequal ; order of length 3,1,4, 

 2; dorsal pair compressed, other depressed ; rings broad, with 

 long acute teeth, smaller on their lower side. Tentacular arms 

 slightly clubbed ; cups in four lines, of the two central lines 

 largest. Shell, very thin, transparent, very broad, lanceolate, 

 edge not thickened ; central ridge broad above, very narrow 

 below. 



Sepia officinalis var. b. Lamck, Mem. de la Soc. d'llist. Nat. 1 79!', 



p. 7., Hist. An. s. Vert. xii. 668. 

 Seiche truitee Montfort, Buff, de Sonnin. Moll. i. 265. t. 6. 1805. 

 Loligo sepio'idea Blainv. Journ. de Phys. 1823, p. 133., Diet. Sc. 



Nat. xxvii. 146. 

 Sepia affinis Feruss. D 'Orb. Tab. Meth. des Cephal. 66. n. 3. 1825. 

 Sepia biserialis Blainv. Diet. Sc. Nat. xlviii. 284. 1827. 

 Sepioteuthis biangulata Rang, Mag. de Zool. 73. t. 98. 1837. 

 Sepioteuthis sepio'idea D'Orb. Moll, des Antilles, i. 34. n. 9. 1838, 



Moll. Viv. et Fos. i. 320.; D'Orb. et Feruss. Cephal. Acet. 



Sepioteuthis, t. 7. f. 6 — 11. rings. 



Hab. West Indies. 



a. Honduras. In spirits. 



b. Jamaica ?. In spirits. Mus. Sloane. 



c. The shell of b., dry. Slightly thickened on the edge. 



f+ Shell with the Margin thickened. 



7. Sepioteuthis Sloanii. 



Sessile arms with only two rows of rings at the base. Fins widest 

 in the middle of the body. Shell broad, lanceolate, with a very 



E 5 



