Jordan and Ever mann. Fishes of North America. 2139 



of the total length without caudal; suout convex, protruding; mouth 

 under the snout and far back from its tip ; eyes lateral, | as wide as the 

 interorbital area ; nostrils in front of the eye. Operculum very small, 

 strap-shaped. Gills 3|. Pseud obranchue present. Teeth weak, paved. 

 Dorsal beginning over end of pectoral, the rays and outline, as of the 

 anal, hardly visible through the skin; anal beginning below eighth to 

 tenth dorsal rays ; dorsal and anal rays closely connected with those of 

 caudal, which are larger and extend in a pencil-like point; ventrals 

 absent; pectoral broad, lower base almost below posterior margin of 

 orbit, lowest 6 rays prolonged. The jugular disk can not be found. Color 

 yellowish white, dusky toward the tail and blackish upon the anterior 

 part of the head; abdominal cavity showing black through the skin. 

 Leugth 5 inches. Atlantic Ocean, off Rhode Island, in 487 fathoms. 

 (Goode.) (liparina, like Liparis.} 



Amitra liparina, GOODE, Proc. TJ. S. Nat. Mus. 1880, 487, off Rhode Island (Type, No. 

 26184. Coll. Fish Haivk) ; JORDAN & GILBERT, Synopsis, 739, 1883. 



^[<lomitra liparina, GOODE, Proc. U. S. Nat. Mus. 1883, 109. 



Paraliparis liparinus, GUNTHER, Challenger, Report, xxu, Deep-sea Fishes, 68, 1887 ; GAR- 

 MAN, Discoboli, 52, 1892 ; GOODE & BEAN, Oceanic Ichthyology, 278, 1896. 



790. PARALIPARIS, Collett. 



Paraliparis, COLLETT, Yid. Selsk. Forh. Christiana, 14, 32, 1878 (bathybii). 

 Hilgt'ndorjia, GOODE &. BEAN, Oceanic Ichthyology, 280, 1896 (membranacea). 

 A )nitrichthys, JORDAN & EVERMANN, Check-List, 453, 1896 (cephalus). 



This genus differs from Careproctus chiefly in the total absence of the 

 ventral disk. The teeth, so far as described, are simple, as in the older 

 individuals of Careproctus. Body long, slender in the caudal portion, 

 covered with a loose, thin skin. Vent remote from the anal. Pecto- 

 rals deeply notched or divided. Dorsal and anal long, and confluent 

 with the caudal. Vertebra? numerous. Gill rakers 3^. Pseudobranchise 

 entirely wanting. Deep-sea fishes of the Arctic. The species are all of 

 very recent discovery. They vary considerably among themselves, and 

 are perhaps divisible into 2 or 3 genera. Among such degenerate forms, 

 the characters usually taken as generic lose their value, (ftapd, near; 

 Lipari*.) 



a. Insertion of pectoral low, its upper ray below the level of the eye. 

 PARALIPARIS : 



b. Gill openings rather large, the gill slit extending downward to opposite middle 

 of pectoral ; head large, 5 in length ; depth 6. D. 60; A. 54 ; pectoral divided 

 to the base, its lobes wholly separate, its rays 24; lower jaw included. 



HOLOMELAS, 2472. 



AMITRICHTHYS (a, without; /ourpa, stomacher; ix^ s fish.): 

 bb. Gill openings restricted to the region above pectorals. 



c. Head very large, 4 in length, its depth at occiput 4| in length, twice 

 depth of body at front of anal; lower jaw projecting; pectoral rays 14, 

 the fin simply notched. CEPHALUS, 2473. 



cc. Head rather small, 5 to 6 in length. 



d. Pectoral fin divided to the base, its lobes separate; lower jaw in- 

 cluded; head 5| in length; depth 4|. ROSACEUS, 2474. 



