NO. 1115. PROCEEDINGS OF THE NATIONAL MUSEUM. 455 



front teeth. No teeth on vomer or palatines. Premaxillaries very ])ro- 

 tractile. Snout blunt, 4^ in head. Eyes large, round, placed close 

 together, 3^ in head. luterorbital region very narrow, less than pupil. 

 Nostrils equal. Caudal peduncle 2^ in head. Branchiostegal mem- 

 branes deeply united, tree from isthmus. Gills 4, a small slit behind 

 the fourth. No cirri above eyes, nor filaments on nape. Head naked; 

 body covered with cycloid scales, those on nape much smaller; belly 

 naked. 



The scales on the body are apparently caducous, as all have fallen, 

 but the impressions are very distinct; they seem to have been embedded 

 on their anterior edge, as the sac-like fold of skin is prominent. Lat- 

 eral line simple, straight, running from upper edge of gill opening to 

 last ray of dorsal when it disappears, not reaching the caudal. It is 

 placed very high, and gradually apj^roaches the dorsal fin, from which 

 it is separated only by a very small distance. Dorsal extending from a 

 point a short distance behind occiput nearly to base of caudal; the fin 

 is emarginate, with the last spine shortest, about 2^ in first soft ray, the 

 latter 2^ in head; longest dorsal spines about 3 in head, all the spines 

 slender and flexible. Anal extending from behind vent nearly to base 

 of caudal; similar to soft dorsal, its rays lower. Ventrals well devel- 

 oped, inserted very slightly in front of base of pectorals, with broad 

 base, the rays thickish. Length of ventrals 1^ in head, the fin reaching 

 three- fifths the distance to vent. Caudal subtruncate. Pectorals reach- 

 ing past vent, about as long as head. Dorsal and anal free from 

 caudal. 



Color {in alcohol). — Dark reddish brown, lighter below; head very 

 dark. Dorsals, pectorals and caudal blackish, i)ectorals and caudal 

 with lighter blotches; anal and ventrals dusky, anal margined with 

 darker. Length about 3 inches. Here described from a specimen 

 taken by the Albatross from Galapagos Islands. 



Type.—^o. 47578, U.S.N. M. 



It is evidently a rock-pool species. The species is named for Miss 

 Susan Brown Bristol, of the department of zoology in Stanford Uni- 

 versity, in recognition of her work on fishes. It is the type of a distinct 

 genus {Emmfiion), remotely allied to Labrosomus and Pseudoblennius, 

 distinguished especially by its straight dorsal lateral line ending at 

 base of last dorsal ray, by its scaly body, and by its dentition. Its 

 relations to any other American genus are not intimate. 



Family XIPHIDIONTIDJE. 



ULVICOLiA, new genus. 



ULVICOLA SANCTiE-ROS/E, Gilbert and Starks, new species. 

 (Plate LV, fig. 2.) 



Head 10 in body; depth 13; dorsal XCVII; anal 1-40; eye 4^ in 

 head; caudal li. 



