The Fresh Water Fishes of the Island of Formosa. 291 



orbital space; cheeks covered with minute scales; those on the belly 

 minute and cycloid. 



Color in formalin dark gray above; lower surface pale brown, with 

 minute brown spots; pectorals and anal with a number of rows of 

 faint brown spots; dorsal and caudal fins with several series of brown 

 spots; ventral fins indistinctly spotted with dark. 



Length of body 94 mm. 



Described from a specimen from Buroko River near Suwo, col- 

 lected by T. Aoki in August, 191 7. 



Habitat: Buroko River near Suwo (a single specimen). 



Remarks: The head of the above-described specimen is' a little 

 longer than that of the specimen described by Giinther or Day. But 

 as the specimens of Eleotris fusca from Sumatra, which are contained 

 in the Stanford collection have longer heads, there is no doubt with 

 reference to the identity of the present species. 



Measurements of Eleotris fusca. 



Genus BuTis Bleeker. 



1874. Biitis Bleeker, Arch. Neer. Sc. Nat., IX, p. 543. (Type Cheilodipterus 

 bulls Hamilton.) 



Body elongate, posterior part compressed, somewhat cylindrical 

 in front. Head elongate, strongly depressed, its upper surface 

 gradually inclining anteriorly; snout produced; interorbital space 

 provided with a pair of bony ridges along the superior margin of the 

 orbit. Cheeks rather rough, sometimes with striae. Teeth in many 

 series, set close together, minute and subequal, those of the outer row 

 somewhat larger; tongue and palate edentulous. Pre-operculum 

 without a spine. Scales large, about thirty in a longitudinal series; 

 scales on occiput extending to the interorbital space; cheek covered 

 with scales. 



Distribution: Philippine Islands; Malayan Archipelago; India to 

 China; Formosa. 



