1886.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 511 



This singular group consists of blind gobies, living like slugs under 

 rocks between tide marks. But one species is known. 



ANALYSIS OF THE SPPCIES OP TYPHLOGOBIUS. 



a. Body subcyliudrical, the males more compressed behind; greatest depth 6 times in 

 length to base of caudal. Head very broad behind, its greatest width f its 

 length, which is- 3^ in body. Eye concealed, very small; distance from snout 

 to anterior border of eye 5 in head. Interorbital space a mere ridge. Skin 

 about mouth and eye very loose ; a small papilla in front of nasal opening. 

 Lower lip developed as a fold ; another fold of skin behind it, bordered with 

 fine cilia ; behind this fold is a row of short, thick papillae. Teeth in both 

 jaws long, close set ; those of the upper jaw in a broad band ; the edge of the 

 jaw rounded. Spinous dorsal remote from soft dorsal in male, connected with it 

 by a low membrane; in female without any connection; soft dorsal much 

 higher than spines ; caudal broad, rounded ; anal very short, inserted under sixth 

 dorsal ray, coterminous with dorsal ; pectorals little longer than ventrals, half 

 head. Body naked; male with small tubercular plates irregularly placed. 

 Dorsal II — 12; anal 12; color uniform light pink Californiensis, 54. 



54. Typhlogobius californiensis. 



Tijphlogobius californiensis Stein dachner, Ichth. Beitriige, viii, 24, 1879 (False 

 Bay, San Diego, Cal.) ; Jordan & Gilbert, Syn. Fish. North America, 639, 

 1883 (San Diego, Cal.); Rosa Smith, Proc. U. S. Nat. Mus., 1883, 234 

 (Todos Santos Bay, Lower Cal.); Jordan, Catalogue Fish. North An. er- 

 ica, 106, 1885 (name only); Rosa Smith, West. American Scientist, 1885, 

 46 (San Diego, Cal.). 



Othonops COS Rosa Smith, Proc. U. S. Nat. Mus., 1881, 19 (Point Loma, Cal.); 

 Jordan and Gilbert, Proc. U. S. Nat. Mus., 1881, 53 (Point Loma, Cal.). 



Habitat. — Coast of Southern California; vicinity of San Diego, and 

 southward. 



This little fish is very abundant under rocks at low-tide about Point 

 Loma, near San Diego. Nearly all of the known specimens have been 

 collected by Miss Eosa Smith. The specimens before us are from Pont 

 Loma and Todos Santos. 



19. TYNTLASTES. 



Tyntlastes Giiuther, Proc. Zool. Soc. London, 1862, 193 (Sagitta). 

 Type, AmhlyopuH sagitta Giinther. 

 This genus consists of two species, both unknown to us. 



analysis of the species of tyntlastes. 



a. [Dorsal, VI-15 ; anal, 15 ; depth, 8 in length to base of caudal ; head, 4| ; eyes 

 minute ; jaws with a series of longish, wide set teeth; caudal fin black.] (Giin- 

 ther) Brevis, 55. 



aa, [Dorsal, VI-21 ; anal, 21. Body and head elongate, compressed. Deptli of body 

 9f in length, head, 5f. Maxillary reaching to behind eye ; teeth sub-horizontal, 

 very small; scales becoming larger posteriorly. Caudal arrow-shaped, about 

 one-fourth length of body; pectoral as long as ventral, half as long as head. 

 Grayish, sides and below silvery ; an ovate gray spot before each dorsal ray ; 

 caudal gray.] {Giinther) Sagitta, 56. 



