NO. 1907. NEW CYCLOGASTERID FISHES— GILBERT AKD BURKE. 379 



Measuromonts in hundredtlis of lonp;t]i wntliout caudal (.S7 mm.): 

 Lcn<j:lli of lioad 22.5; of snout G; of maxillaiy 10; diamotor of pye 6.5; 

 length of gili slit 3; interocular width 8; distance from tip of snout to 

 anus 17.5; to front of anal 30; to front of dorsal 24; greatest depth 

 20; lengtli of base of pectoral 13; longest pectoral ray of upper lobe 

 19; of lower lobe 14; shortest ray in notch 7. 



Dorsal 63; anal 56; pectoral 20; caudal 6. 



Body rather deep, compressed; occijnit only slightly gibbous; snout 

 deep, l)lunt, not projecting; jaws equal; eye large. Mouth horizontal; 

 maxillary reaching vertical from posterior margin of pupil. Teeth 

 slender, pointed, in well-developed bands, the inner teetli enlarged, 

 caninelike, larger in the upper than in the lower jaw. Kostril in front 

 of eye, on level of upper edge of pupil, the tube httle more than a 

 raised rim. Gill slit short, wholly above the base of tJie pectoral. 



Anterior dorsal rays increasmg very rapidly in length, the first six 

 or seven graduated; dorsal and anal rays very slender. Caudal com- 

 posed of six slender elongate rays, its union with anal equal to nearly 

 half its length. Pectoral consisting of two lobes, the lower rays of 

 upper lobe more widely spaced; base of upper pectoral ray on a level 

 with upper edge of pupil; tip of upper pectoral lobe reaching fiitli 

 anal ray; lower lobe consisting of five elongate half free rays, reach- 

 mg almost to anal. Vent well behind base of lower pectoral rays, 

 separated from them by about one-lialf tlieir distance from tip of 

 mandible. 



Head and body entirely denuded of sldn; body with scattered 

 black dots, these thickest on occiput; gill cavity black; mouth pale; 

 peritoneum heavily spotted with black. In hfe, nearly translucent, 

 with a faint tinge of red; peritoneum green, visible through the body 

 walls. 



Related to P. melanohranclius, differing in the number of pectoral 

 and caudal ra^-s, in the length of the lower lobe of the pectoral, the 

 position of tlie vent, and in the characters of the teeth and the 

 anterior dorsal rays. 



A single cotype was taken witli tlie type. 



30. RHINOLIPARIS BARBULIFER Gilbert. 



Rhinoliparis barhuUfer Gilbert, lUip. ("onim. Fish and Fisheries for 1S93 (1S96), 

 p. 44.5 (Bering Sea). 



Taken abundantly in the southern part of the Okliotsk Sea off the 

 coast of Sagidui, off the south coast of Hokkaido, and near Mat- 

 sushima Bay, east coast of Hondo; but the species was not taken in 

 the Sea of Japan. It has been known hitherto from Bering Sea north 

 of Unalaska Island, and in its distribution seems to accom])any the 

 cold current wliich sweeps downi the coast of northern Japan and 

 can be detected somewhat to the southward of Matsushima Bay. 



