REVISION OF THE FISH FAMILY LIPARIDAE 187 



the barbel. No prickles. Pyloric coeca short, three-fourths of the 

 eye, on the left side. 



Origin of dorsal above gill slit; tips of anterior rays not connected 

 with skin. Caudal of three rays, slender, truncate, 2 in the head, 

 connected for one-fourth its length to the anal. The upper edge 

 of the pectoral on a level with the pupil; the fin deeply notched; 

 the space between the two lobes with two very widely spaced rudi- 

 mentary rays hidden beneath the skin; the upper lobe not quite 

 reaching the anal; the lower lobe reaching halfway to anal, 2 in the 

 head, of three elongate, nearly equal rays, free nearly to the base, 

 one short rudimentary ray in front, suggesting that the anterior 

 rays have been lost; two-fifths of the length of the pectoral appears 

 to be beneath the lax skin. 



Color: Skin transparent; flesh dotted, dusky on the nape and along 

 the base of the dorsal and anal; peritoneum, mouth, and gill cavity 

 black; stomach dusky. 



Figure 103.— Rhinouparis attent; atus. Teeth from type 

 RHINOUPARIS ATTENUATUS Burke 



Rhinoliparis attenuatus Burke, 1912a, p. 573. — Gilbert, 1915, p. 357. 



T?/pe.— No. 28377, M. C. Z. Bering Sea, Albatross Station 3326; 

 depth 576 fathoms. 



Relationships. — RJiinoliparis attenuatus constitutes the second 

 species in the genus. It does not appear to be closely related to 

 Rhinoliparis harhulifer and can zeadily be distinguished from the 

 latter by the larger number of barbels on the snout and the more 

 highly modified type of dentition. 



Description oj type. — Body as in R. harhulifer, low, extremely 

 attenuate. Head 5.7 in the length of the body without the caudal, 

 depressed; width of head greater than depth of head; profile low, 

 nearly straight from snout to occiput; interorbital flattened. Mouth 

 broad; maxillary reaching vertical from posterior margin of eye. 



