1288 Annals of the Carnegie Museum. 



the first composed of five or six low, flexible spines; ventrals separate. 

 Scales moderate, ctenoid, forty-five to seventy in a longitudinal 

 series; vertebrae (pisonis) 11-15. Tropical seas, entering fresh waters 

 (Jordan & Snyder). 



Distribution: Freshwater fishes of the tropics, some of the species 

 entering the sea; cosmopolitan. 



Synopsis of the Formosan Species. 



a. Scales of moderate size, about 50 in a lateral series, 15 between origins of the 



second dorsal and anal oxycephala. 



aa. Scales small, about 60 in a lateral series, 16 between origins of the second 

 dorsal and anal fusca. 



63. Eleotris oxycephala (Schlegel). 

 Doman (Lake Biwa, Japan); Onkora (Formosa). 



1845. Eleolris oxycephala Schlegel, Fauna Japonica, Poiss., p. 150, PI. LXXVII, 

 Fig. 4, 5; Nagasaki. — GOnther, Cat. Fish., Ill, 1861, p. 116; China. — Kner 

 Novara, Fisch., II, 1865, p. 185; China. — Jordan & Snyder, Proc. U. S. 

 Nat. Mas., XXII, 1900, p. 371; Lake Biwa.— Proc. U. S. Nat. Mus., XXIV, 

 1901, p. 46; Haneda; Wakayama. — Jordan & Richardson, Mem. Carneg. 

 Mus., IV, No. 4, 1909, p. 200; Takao, Formosa. 



1846. Eleolris canthrinus Richardson, Ichthyol. China, p. 209; Macao. 



1905. Eleotris balia Jordan & Seale, Proc. U. S. Nat. Mus., XXIX, p. 526; 

 Hongkong. 



Head 3.33 in length; depth 5; D. VI, 8; A. 9; P. 18; V. 5; depth of 

 caudal peduncle 2.33 in head; eye 6; interorbital space 3; snout 4; 

 fifty scales in a lateral series, fifteen scales between origins of second 

 dorsal and anal. 



Body deep, caudal peduncle strongly compressed; head long, much 

 depressed, considerably broader than the body, a longitudinal groove 

 along the median line of the top; snout rather short, broadly rounded 

 anteriorly, interorbital space flat; mouth large, terminal, slightly 

 oblique, its angle extending to a vertical through the anterior liorder 

 of orbit; lips thick; lower jaw projecting beyond the upper; teeth on 

 both jaws, simple, in rather broad bands, inner ones larger; palatines 

 and vomers without teeth; eyes supsrior and anterior; tongue oblong, 

 anterior edge rounded; nostrils separated, very small, anterior nostril 

 in a short tube; gill-openings lateral, not extending very far forwards; 

 posterior border of the pre-opercle with a hidden spine, which projects 

 downward and forward; gill-rakers 3 +9, short and covered with 

 <ielicale setai. 



