504 PROCEEDINGS OF THB ACADEMY OF [July, 



and lower surface of head and snout whitish like abdomen. Iris pale 

 slaty. 



Length 8| inches. 



Type No. 2,400, W. I. A. P. Baram river, Borneo. 1897. Alfred 

 C. Harrison, Jr., and Dr. H. M. Hiller. 



One example. This species may be distinguished principally by the 

 black outer f of the pectoral fin. 



(Named for Dr. H. 1\I. Hiller, explorer of Borneo and Sumatra with 

 Mr. Alfred C. Harrison, Jr.) 



OOIID^. 



Body deep and elevated. Premaxillaries protractile and spines 

 extending back to occiput. Teeth in jaws villiform and none on roof 

 of mouth or on tongue. jNIaxillary slipping below lower edge of pre- 

 orbital for most of its length. Preorbital narrow. Lower pharyngeal 

 bones separate. Branchiostegals 6. Pseud obranchia? present. Ap- 

 pendices pylorices few. Air-vessel simple. Dorsal fins continuous, 

 spines XII and stout. Anal spines similar, HI. Caudal rounded. 

 Rivers and estuaries of India and the East Indies. 



These fishes approach the Gcrridw in the spines of the ])remaxillary, 

 but differ at once in the numerous stout dorsal spines. Coins Hamil- 

 ton*^ { = Datriioides Bleeker) is the typical form. 



68. Coius quadrifasciatus (Sevastianoff). 



Four examples, largest 3f inches in length. 



OSPHRONEMID^. 



69. Betta pugnax (Cantor). 



One example from the Baram. Harrison and Hiller. 

 Bleeker's Betta a na 6a toiV/es'^'^ appears to differ a little from 5. jmgnax, 

 according to the accounts of Valenciennes and Cantor. Panchax pic- 



*^This genus is also one of Hamilton's composite groups. Its elimination is as 

 follows- 



vncti=Laics Cuvier, 1S2S. 



datnia = Chrysophri/fi Valenciennes, 1830. 



catvs=Lutianus Bloch, 1797. 



tricittatus = Therapon Cuvier, 1829. 



gudgutia = Pomadasis Lac^pede, 1S03. 



polota =Datnioides Bleeker, 1857. 



nnndus = Nandus Valenciennes, 1831. 



cobojiiis = Anabas Cuvier, 1829. 



chaf(ircus = To.rotes Cuvier, 1817. 



It is tlius evident that Datnioides Bleeker is the last name proposed and there- 

 fore gives precedence to Coins. Datnioides first occurs in Nat. Tijds. Ned. Ind., 

 Ill, 1853, p. 440. Type Datnioides quadrifasciatus Bleeker = Coius polota Hamil- 

 ton. 



""Nat. Tijd.<i. Ned. Ind., I, 1850 (1851) p. 269. Bandjermassing, in fluviis. 

 (Mr. J. Wolff.) 



