REVISION OF THE FISH FAMILY LIPARIDAE 91 



the dark peritoneum and the dentition, the teeth being simple 

 or weakly trilobed. 



Description. — Body deep at union with head, short, tapering 

 rapidly to caudal, much compressed. Head very heavy, flat between 

 the eyes, profile sloping rapidly to snout, cheeks nearly vertical. 

 Mouth wide, the lateral cleft extending to vertical from middle of 

 eye; maxillary reaching beyond orbit. Teeth arranged in about 13 

 oblique, widely spaced rows in the half of each jaw; inner teeth much 

 larger, slender, recurved, simple, or with the lateral lobes but faintly 

 indicated; smaller teeth trilobed. Snout short, deep, rising abruptly; 

 jaws equal. Anterior nostril in a short tube; posterior nostril reduced 

 to a small pore. Eye large and prominent. Gill slit large, extending 

 down in front of 10 pectoral rays, the flap broad. No prickles on 

 any of the specimens examined. (See Liitken, (1886), for presence 

 of prickles in this species.) Pyloric coeca reduced in number, about 

 20. Pores 2-6-7-2; rudimentary pores on the sides. 



Dorsal rather high, the origin far forward, in front of the base of 

 the pectoral. Anal connected to more than the basal half of the 

 caudal; the dorsal connected to slightly less than the basal half of the 

 caudal; the connection between the fins abrupt, sometimes a notch 

 present. Pectoral deeply notched, the upper edge on a level with the 

 lower margin of the eye; the lower lobe of six rays, reaching vent. 

 Disk large, with a narrow flap. Vent midway between disk and anal, 

 separated from disk by two-thirds diameter of disk. 



Color a uniform dull slaty brown or the skin translucent and dusted 

 with fine brown dots, these forming dusky streaks along base of 

 dorsal; muscles puntulate; peritoneum pure black or heavily pig- 

 mented, differing in this respect from all other species of Liparis; 

 stomach and ovary dusky, gill lining speckled. 



Synopsis. — Dorsal 48; anal 40; pectoral 35; pyloric coeca 20. 

 Disk 2.7 in head. Gill sHt extending down in front of nine pectoral 

 rays. Dorsal fin unnotched. Dorsal connected to slightly less than 

 the basal half of the caudal. Prickles present or absent. Perito- 

 neum black or heavily pigmented. Reaching a length of 144 mm. or 

 more. 



Remarks. — This species resembles members of the genus Care- 

 proctus in the large head, deep body, simple teeth, large eye, the color 

 of the peritoneum, the reduced number of pyloric coeca, the compara- 

 tive number of pectoral rays, and the reduced posterior nostril. 



Genus POLYPERA Burke 



NeoUparis Jordan and Starks 1895, (greeni). 

 Polypera Burke, 1912a, (greeni). 



Disk large; dorsal fin notched; nostrils 2; teeth weakly trilobed 

 and simple; pyloric coeca numerous, more than 200; branchioste- 

 gals, 6. 



