138 DEEP SEA FISHES. 



Phucoccetes latitans. 



PhucGCcetes latitans Jenyns, 1842, Voy. " Beagle," Fishes, 168, pi. 29, fig. 3. 



D. 100; A. 76 ; V. 2 right, 3 left ; P. 17 ; C. 10. 



Form similar to that of other Ljcodidae. Body and tail compressed; 

 depth one eighth of the total length, and distance from snout to anal origin 

 four ninths of the same. Head depressed, bi'oader than high, one sixth of 

 the total length and two and three fourths times in the distance from snout 

 to vent. Snout longer than the eye, broad, blunt; upper jaw longer; lips 

 thick ; mouth wide ; maxillary subtending nearly the whole of the orbit. 

 Teeth imequal, apparently in a single series on jaws and palatines ; 

 vomerine few. Gill openings narrow, extending but half way down across 

 the bases of the pectorals. Vertical fins continuous around the end of the 

 tail; dorsal originating above the axil of the pectoral; anal origin below 

 the thirty-first ray of the dorsal. Pectorals short, deep, broadly rounded 

 on the hinder margin, two thirds as long as the head, scalloped on the edge. 

 Ventrals stout, short, as long as the eye, with two rays on the right side and 

 three on the left, the extremities showing like blunt digits at the end of 

 the fin. Scales very small, absent on the anterior half. No pyloric 

 appendages. 



Brown ; white below the head, around the vent, and on the margins of 

 the pectorals ; lips dark brown ; top of head darker. 



Length four inches. 



Shell Bay, Patagonia ; collected by the Hassler Expedition. 



Lycodapus. 



Lycodapus Gilbert, 1890, P. U. S. llxxs., XIII, 107. 



Body and head compressed and tapering. Body cavity short. Mouth 

 anterior, wide, lower jaw longer; teeth very small, in villiform bands on 

 jaws, vomer and palatines. Six branchiostegal rays. No barbels. No 

 pseudobranchiaj. No ventral fins. Gill openings wide ; gill membranes 

 not united, free from the isthmus. Skin naked ; a lateral line. Dorsal, 

 caudal, and anal fins united. Pectoral narrow. No opercular or other 

 epines on the head. Pyloric appendices few. 



