96 CATALOGUE OF CEPHALOPODA. 



Suborder II. Sepiafhora. 



Shell cellular, calcareous ; back hard ; cavity filled with lamina?, 

 separated by numerous cells.— Head united to the mantle by a 

 broad cervical band. Mantle attached behind, free in front, 

 and with two internal cartilaginous longitudinal ridges fitting 

 into cartilaginous grooves in the base of the sides of the si- 

 phuncle. Fin as long as the sides of the back. 



Teuthomorpha (Sepiae) (pars) B r onn, Gesch. der Nat. iii. 588. 



Fam. VI. SEPIAD^E. 



Body short, oval or rounded, depressed. Fins lateral, separated 

 from one another behind by a neck or free space. 



Head broad. Eyes lateral. Lower eyelid distinct. Auricular 

 ridges none. Buccal membrane without cups. 



Sessile arms with four rows of cups ; horny ring of the cups uni- 

 formly convex, and narrowed above and below, without any 

 external ridges. Tentacular arms entirely retractile into the 

 cell at their base. 



Siphuncle without any superior band at its junction with the head, 

 with an internal valve. 



Shell internal, as long as the back, calcareous, filled with irregular 

 cells, without any siphon. 



Sepida? (pars) UOrb. Moll. Canar. 20. 1837, Moll. Viv. et Fos. i. 



237. 1845. 

 Sepiana Gray, Proc. Zool. Soc. 1847, 205. 

 Sepiadae Owen, Trans. Zool. Soc. ii. 2. ] 838 ; Gray, Syn. B. M. 



1842. 92. 

 Sepioi'dse Agassiz, Nomencl. 

 Sepiacea (pars) Desh. Ency. Meth. ii. 1830. 

 Sepia? (les Seiches) Risso, Bur. Merid. iv. 7. 1826. 



1. SEPIA. 



Body large, ovate or oblong, fleshy, depressed, rounded behind, 

 with a rounded projection on the front of the dorsal edge. Fin 

 narrow, lateral, bordering the whole side of the body, and sepa- 

 rate behind. The ventral part of {he mantle furnished with an 

 oblique oblong tubercle fitting to a concavity in the sides of the 



