80 THE DISCOBOLI. 



AMITRIN^. 

 PARALIPARIS. 



In shape of head and body, in the posterior process of the infraorbital 

 bone, in the arrangement of the teeth, and in the structure of the vertical 

 fins, this genus is much hke Liparis. The teeth, so far as described, are 

 simple, as in the older individuals of the Careprodi. The body is long, slen- 

 der in the caudal portion, and is covered with a loose, thin skin. The vent 

 is remote from the anal. There are no ventrals. The pectorals are deeply 

 notched or divided. Dorsal and anal are long, and confluent with the caudal. 

 Gills three and a half. Pseudobranchiae are said to be present in one of the 

 species. 



Paraliparis first was ranked as a subgenus of Liparis by Collett, 1878, 

 who described the type species, P. bathybius. In his work on the Fishes of 

 the Norwegian North-Atlantic Expedition, 1880, he discarded the subgenus, 

 placing the species in Liparis. Giinther, 1887, in his work on the Deep. 

 Sea Fishes of the Challenger Expeditions, raised Paraliparis to generic rank, 

 and included, with P. bathybius and P. membranaceus, P. liparinus, the type 

 of a genus founded by Goode, 1881, under the name Amitra, which, being 

 preoccupied, had been changed to Monomitra in 1884 by its founder. 



Species of this genus have been found in both the Atlantic and the 

 Pacific north of the equator ; but, being deep-sea forms, there is no reason 

 we should not expect them at great depths in all the connected waters. 

 In some respects the structure of the Amitrinse is such as to entitle thera 

 to rank as a distinct family, Amitndce. 



Paraliparis rosaceus. 



Paraliparis rosaceus Gilb., 1890, Pr. U. S. Mus., XTII. 93. 



D. 58 ; A. 53. 



" Body slender, covered with lax skin, which invests also the fins. Head 

 small, 5| in length ; depth, 4|. Mouth transverse, nearly horizontal, the 

 maxillary scarcely vertical from front of pupil, equaling length of snout, 

 3t in head ; eye half interorbital width, 5 in head. 



" Teeth in lower jaw pointed, in a single close-set series, their even tips 

 forming an almost uniform cutting edge. Teeth in upper jaw apparently 



