300 Annals of the Carnegie Museum. 



Habitat: Shinchiku; Taniusui River near Shinten; Dakusui River; 

 Sobun River; Jitsugetsutan (Lake Candidius) ; Daiiiansho, Nanto; 

 Bokusekikaku; Inzanpo, Giran. 



Remarks: This species is near Rhiiwgobiiis similis'^^ from Japan, but 

 differs distinctly in the smaller number of mucous pores and in the 

 greater number of scales in the lateral series. 



Rhinogohius candidius is another closely related species. It differs, 

 however, in having no mucous pores and the spines of the first dorsal 

 which are not filamentous. 



70. Rhinogobius formosanus sp. nov. (Plate LIII, Fig. 2). 



Head 3.53 in length; depth 4.25; depth of caudal peduncle 2 in head; 

 eye 5; interorbital space 5.5; snout 2.8; D. VI, 9; A. 9; P. 19; twenty- 

 nine scales in lateral series, nine scales in an oblique series between 

 origins of second dorsal and anal. 



Body rather robust, highest in front of first dorsal; tail slightly 

 compressed; head elongate, entirely naked; snout pointed anteriorly; 

 mouth moderate, more or less oblique, its angle reaching a vertical 

 through anterior margin of orbit; jaws subequal; lips fleshy, upper 

 lip rather wide; tongue broad, with rounded tip; teeth on the upper 

 jaw in a single series, conical and minute, those on the lower jaw in a 

 narrow villiform band, outer ones pointed and in a single row; eyes 

 high in head, upper margin projecting above the contour of head, 

 situated nearer to tip of snout than the posterior edge of opercle; 

 interorbital space convex; nostrils separated, anterior nostril in a short 

 tube. 



Dorsal fins well separated, none of the spines elongated, when 

 depressed not reaching the base of second dorsal; second dorsal rather 

 short, middle ray longest; pectorals rhomboidal, pointed at the tip, 

 not reaching the vent; ventrals united, forming a concave disk, not 

 adnate to the belly; anal fin inserted below the third ray of second dor- 

 sal, when depressed extending to end of second dorsal, posterior ray 

 longest; caudal fin rounded. 



Body covered with large ctenoid scales, those on the belly smaller 

 and cycloid; cheeks, operculum, and tip of head entirely naked. 



Color in alcohol pale olive-gray, back mottled with dark; sides with 

 about seven squarish dark cross-bars; lower surface whitish; top of 



^* Rhinogobius similis Gill, Proc. Ac. Nat. Sci., Philad., 1859, p. 145; near Shi- 

 moda, Japan. 



