252 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



by a disconnected series of irregular, dark blotches and verniiculations. 

 In both sexes the dorsals and pectorals are crossed by narrow, dusky 

 bars, formed b}^ series of dark streaks on the rays; mouth whitish, 

 gill cavit}^ silvery white, with the exception of the lining of the oper- 

 cle and the outer half of branchiostegal membranes, which are dusky. 

 This is the Pacific representative of the Atlantic Triglops p myelin from 

 which it differs in the greater slenderness of the bod}^, particularly of 

 the caudal peduncle, in the somewhat smaller eye, the more pointed 

 snout, the less fine subdivision of the lateral folds, the less complete 

 investment of the fins with prickly scales, and, above all, in the peculiar 

 coloration of the male. (Gilbert.) Alaska to Puget Sound and the 

 Kurils, taken very abundantly b}^ the U. S. Fish Commission steamer 

 Albatross at stations located both north and south of the Aleutian 

 Islands and in Bristol Ba}^; also from about St. Paul Island in iJi to 37 

 fathoms, otf Karluk in 31 fathoms, and off Robben Island in 18 fathoms, 

 and by the present writers in Puget Sound and the Gulf of Georgia, 

 the depths ranging from lOi to 42 fathoms; specimens 82 to liU mm. 

 in length also taken in Plover Bay, Siberia. 

 (Named for Dr. Tarleton Hoffman Bean.) 



lO. PRIONISTIUS (Bean). 

 Prionistiufi Bean, Proc. U. S. Xat. Mus., 18S3, p. 355 {macellus). 



This genus is nearly related to TrUjlops^ from which it differs in 

 the absence of a series of enlarged scutes along each side of base of 

 dorsal fins, in the elongation of the bod}', in the dorsal and anal fins, 

 and in the emarginate caudal fin. Preopercular spines tt, the lower 3 

 developed as thin, flat lobes. It agrees with Triglops and Elanura 

 in all other important structural details, including the exserted, more 

 or less produced lower pectoral rays. Alaska. 



{jipicov^ saw; iffriov, dorsal fin.) 



lo. PRIONISTIUS JORDANI Schmidt. 



Elanura jordani Schmiut, MS. ; Peter the Great Bay, Vladivostok, Aniva Bay, 

 Sagkalin. 



Head 3^ in length to l)ase of caudal; depth 0. Dorsal IX-27; anal 

 27; lateral plates -lU. Eye 3i in head; snout 3^; interorbital space 7i; 

 maxillary 2^. Body deepest at base of ventrals, tapering evenlv back- 

 ward to a slender caudal peduncle; very slightly deeper than wide 

 behind l)ase of pectorals and for a short distance behind their tips, as 

 wide as deep posteriorly. Maxilhir}' reaching a very little past ante- 

 rior border of pupil. Jaws even. Teeth very fine, in narrow bands on 

 jaws, in a narrow^er band on vomer; none on palatines. Interor])ital 

 space slightly concave. Masai spines very small, but sharp. Edge of 

 preopercle with 3 spines, none of them enlarged; the upper one 



