308 Annals of the Carnegie Museum. 



1905. Acanlhogobius ojnmatiiriis Jordan & Seale, Proc. U. S. Nat. Mus., XXIV, 

 p. 528; Shanghai. 



Head 3.56 in length; depth 7.5; D. IX, 18; A. 15; P. 21; V. i, 4; 

 width of head 1.81; eye 5.33 in head; interorbital space 7.5; snout 

 2.75; depth of caudal peduncle 3.75; seventy scales in a longitudinal 

 series, eighteen scales between origins of second dorsal and anal; 

 gill-rakers 3 + 8. 



Body elongate, slender, anterior part somewhat cylindrical, tail 

 compressed; head large, slightly depressed, its top scaly, cheek 

 covered with minute scales; snout somewhat produced, acutely 

 rounded anteriorly, tip slightly swollen; mouth large, inferior, its angle 

 not reaching a vertical through anterior border of orbit; lips thick and 

 fleshy; upper jaw slightly longer than the lower; teeth conical and 

 fixed, in several rows, those of the outer series somewhat larger; eyes 

 high up, interorbital space concave; nostrils separated; tongue broad, 

 truncated in front; gill-openings not extending far forward; isthmus 

 rather broad. 



Dorsal fin separated; spinous dorsal slender, anterior spine longest, 

 when depressed not reaching second dorsal; soft dorsal elongate, 

 with many rays, length of each ray subequal; pectorals rather large, 

 without free silk-like rays above, their bases smooth and muscular; 

 ventrals completely united, forming a concave round disk which is not 

 adnate to belly; anal inserted below fourth dorsal ray, when depressed 

 reaching posteriorly as far as the dorsal, both not extending to the 

 root of caudal; caudal fin rhomboidal, pointed at middle; caudal 

 peduncle elongate. 



Body covered with thin ctenoid scales; scales on head small and 

 cycloid. 



Color in alcohol pale gray above, lower half of the sides and belly 

 whitish; rays of the dorsal fins spotted with black, caudal fin yellowish 

 olive, with a number of dark markings near the base; the rest of the 

 fins whitish. 



Length of body 140 mm. 



Described from a specimen from Taihoku, collected by T. Aoki. 



Habitat: Taihoku (two specimens). 



Summary. 

 Family SALMON I D.-E. 

 I. Plecoglossus Temminck & Schlegel. 

 I. altivelis Temminck & Schlegel; Tamusui River. 



