[ 275 ] 



VI. Report o?i the Freshioater Fishes collected hy the British Ornithologists' Union 

 Expedition and the Wollaston Expedition in Dutch Kew Guinea. By C. 

 Tate Regan, M.A., F.Z.S. 



[Received January 6, 1914; Eead March 3, 1914.] 

 [Platk XXXI.*] 



ISDBX. 



Page 

 Geographical : 



SijmirancJius hengalensis. Distribution of 275 



Fishes of the Mimika Eiver 276 



,, „ Utakwa and Setakwa Eivera 276 



S3-stematio : 



Revision of Melanotajuiine Alherinidse 276 



Shadinocentrus, gen. n 280 



R. ornatus, sp. n 280 



Anisocentrus, gen. n 281 



ChilatJierina, gen. n 282 



Centratherina, gen. n 283 



Rhomhosoma, geu. n 283 



J- HE freshwater fishes of Dutch New Guinea have been so extensively collected by 

 the Dutch expeditions, and so thoroughly worked out by Professor Max Weber, that 

 it is not surprising that the collections here reported on include no new species. 

 However, they include examples of two species of the Melanotseniine Atherinidse, and 

 the difficulty of determining these has led me to attempt a revision of the group ; 

 this work has been greatly facilitated by Professor Max Weber, who has most kindly 

 sent me co-types, or authenticated examples, of nearly all the species described by 

 him. 



The only other species that calls for special mention is Symhranchus hengalensis; 

 in reply to Professor Weber's contention that this was a fresh-water fish, and an 

 Indian element in the fauna of Celebes, I had pointed out that it entered brackish- 

 water and probably the sea also, since it was known from Western Australia * ; its 

 occurrence in New Guinea considerably extends its known range and strengthens this 

 conclusion. 



* Eep. Brit. Assoc. 1911, p. 435. 



VOL. XX, — PAKT VI. No. 1. — March, 19.U. 2 p 



