The Fresh Water Fishes of the Island of Formosa. 289 



Two pairs of dorsal fins; first dorsal rather small, when depressed 

 reaching the insertion of the second dorsal, posterior ray of the latter 

 longest; pectorals acutely rounded, reaching to the posterior end of the 

 base of the first dorsal; ventrals separated, rather small; the anal 

 inserted beneath the third soft ray, when depressed reaching so far as 

 the end of second dorsal; caudal fin rounded; anal flap developed. 



Head with minute scales except snout, chin, and throat; occiput and 

 cheeks with small cycloid scales; body covered with uniform ctenoid 

 scales, those on belly, breast, and nape are minute and cycloid. 



Color in formalin uniformly dark brown, ventral parts whitish, 

 densely speckled with minute brown spots; a wide black stripe, made 

 up of small black dots, extending from opercle to caudal; a distinct 

 narrow black line through eye from snout to origin of dark stripe on 

 bod>'; another short black line from posterior margin of orbit to pos- 

 terior margin of pre-^opercle; first dorsal with two brown bands which 

 run horizontally; second dorsal and anal with numerous dark spots; 

 caudal and pectorals with small brow'nish spots arranged in vertical 

 rows. 



Length of body 112 mm. 



Described from a specimen from Tozen River, collected by T. Aoki 

 in December, 1916. 



Habitat .-Tamusui River near Maruyama; Tozen River; Giran River 

 near Inzanpo and Kiburan; Buroko River near Suwo. 



Measurements of Eleotris oxycephala. 



Locality. 



tag 



Tozen River. . . 

 Tamusui River. 

 Tamusui River. 



Inzanpo 



Kiburan 



Kiburan 



Kiburan 



Kiburan 



Giran 



5 VI. 8 

 5.22iVI, 9 

 4.81 VI, 9 



4.25 VI, 9 

 4.50JVI, 8 

 4 jVI, 9 

 5-26JVI, 9 

 4.60JVI, 9 

 4.66 VI, 9 



4 



3-83 

 3.66 

 390 



4 



4 



3-77 



4 



3-44 



6 50-15 

 6.5o!48-i5 



7 150-16 

 7 48-15 



6 [48-15 

 5.40 46-15 

 6.66148-15 

 5.66J48-15 



7 I50-15 



112 

 109 

 120 

 150 

 105 

 113 

 130 

 no 

 165 



64. Eleotris fusca (Schneider). 



1801. Pcecia fusca Schneider, Bloch. Syst., p. 453. 



1861. Eleotris fusca Gunther, Cat. Fish., Ill, p. 125; Ganges; Calcutta; Bengal; 

 Amboyna; Aneitum; Oualan; Wanderer Bay; Ceylon; Canton. — Ishikawa, 

 20 — JAN. 12, 19 19. 



