GASTROBRANCHUS. GASTROBRANCHUS. 



Generic Character. 



Corpus anguilliforme. 



Os subtus, dentibus nume- 



rosis, pectinatis. 

 Spiracula duo ventralia. 



Body Eel-shaped. 



Mouth beneath, with nu- 

 merous pectinate teeth * 



Spiracles two, beneath the 

 abdomen. 



BLIND GASTROBRANCHUS. 



Gastrobranchus Ccecus. G. limdusj suhtus pallidior, ore cirris 

 octo. 



Livid Gastrobranchus^ paler beneath^ with eight beards at the 

 mouth. 



Gastrobranchus coccus. G. oculis carens. Block, t. 413, 

 Myxine glutinosa. Lin, Syst» Nat, p. 1080. Miill. prodr, 

 Z. D. p. 227. Schrift. der Berl, Gesselsh, naturf, Fr. 10. 

 193. 244. t. 4. 

 Pihraol. Kahn. it. Amer. l.jp. 118, 



The fish which constitutes this genus has long 

 -since been described by Linnaeus and others under 

 the title of Myxine glutinosa^ and considered as 

 belonging to the tribe of Vermes, in which situa- 

 tion it ranks in the latest editions of the Systema 

 Naturae. Dr. Bloch however, from accurate ex- 

 amination both of its external and internal struc^ 

 ture, has very justly considered it as a legitimate 

 cartilaginous Fish. The usual length of the 



