The Fresh Water Fishes of the Island of Formosa. 299 



upper jaw more or less projecting; lips fleshy; teeth on both jaws in 

 villiform bands, those on outer row enlarged; eyes superior, situated 

 midway between tip of snout and posterior angle of opercles; inter- 

 orbital space concave and narrow; anterior nostril in a short tube. 



Dorsal fins well separated; spinous dorsal greatly elevated, second 

 spine the longest, filamentous, its height 3.8 in total length without 

 caudal, the third a little shorter than the second, the last spine about 

 one-third as long as the second; soft dorsal high, posterior ray the 

 longest, when depressed scarcely reaching the root of caudal; pectorals 

 extending beyond the posterior end of base of spinous dorsal; ventrals 

 united, forming a round, concave cup, the tip of which reaches middle 

 of pectoral, free from the belly; anal fin inserted below second ray of 

 soft dorsal, posterior ray the longest, when depressed reaching end of 

 soft dorsal; caudal fin rounded. 



Body covered with large ctenoid scales; small cycloid scales near the 

 base of spinous dorsal and oh the belh'; head and occiput entirely 

 naked. 



Head with a number of mucous pores nearly as large as the nostril, 

 one on each side above and before the eyes, one on the posterior part of 



Measurements of Rhinogobius taiwanus. 



Locality. 





Shinchiku 



Shinchiku 



Shinchiku 



Shinten 



Sobun River. . 

 Jitsugetsutan. . 

 Dakusui River 

 Dakusui River 

 Dainansho. . . . 

 Bokusekikaku. 

 Inzanpo 



S-40 



5-44 



6.25 



6.27 



6 



5-23 



6 



6.09 



5.20 



5-80 



5-88 



VI, 9 

 VI, 9 

 VI, 9 

 VI, 9 

 VI, 9 

 VI, 9 

 VI, 10 

 VI. 10 

 VI, 10 

 VI, 9 

 VI, 9 



2.38 

 2.66 

 2.42 



2.33 

 2.66 

 2.25 

 2.42 

 2.50 

 2.50 

 2.50 

 2.33 



5 36- 

 S [36- 

 4-5035- 

 4-6036- 



5 35- 



5 

 5 

 5 

 5 

 5 

 4-50 



interorbital space, one behind each eye, two along the posterior edge 

 of pre-operculum. 



Color in alcohol pale brown, somewhat darker anteriorly; all the 

 fins pale brown, soft dorsal and anal bordered with white. 



Length of body 69 mm. 



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

 in December, 1916. 



