1861.] VERTEBRATES OF NEPAL. 221 



The specimen is a dried skin, 6 inches long ; and it is difficult to 

 say whether our determination is correct. The occurrence of a 

 species of Serranus in fresh water is a very curious and quite new 

 fact. 



2. Therapon servus. 



Holocentrus servus, Bl. t. 238. f. 1. 

 Therapon servus, Cuv. & Val. iii. p. 12.5. 

 Pterapon trivittatus. Gray, Ind. Zool. t. . f. 1. 



One specimen. 



The occurrence of this fish in Nepal is another striking example 

 in favour of the opinion that the species of this genus are freshwater 

 fishes, some occasionally entering the sea. They appear to be one 

 of the genera representing the freshwater Perches of the northern 

 regions in the East Indies. 



3. DlAGRAMMA CINCTUM. 



Diagranima cinctum, Schleg. Faun. Japon. Poiss. p. 61, pi. 26. 

 f. 1 (not good). 



One dried specimen. 



4. DlAGRAMMA, Sp. 



There is another specimen of Diagramma in Mr. Hodgson's col- 

 lecticJn, which we cannot refer to any species known. It is a dried 

 skin 5 inches long. We should have referred it to the genus Thera- 

 pon, its head having quite the form of that of the fishes of that 

 genus, but for the numbers of the fins, which are, D. 12/19, A. 3/9. 

 It would be hazardous to name this apparently new species ; several 

 portions of the skin being distorted and the colours having gone, we 

 could give only an incomplete description of it. 



5. SCATOPHAGUS ARGUS. 



Cheetodon argus, Gm. S. N. p. 1248 ; Bl. t. 204. f. 1. 

 Cheetodon pairatalis, Buch. Ham. Fishes of the Ganges, p. 122, 

 pi. 16. f. 41. 



Cheetodon atro-maculatus, Benn. Fishes of Ceylon, pi. 18. 

 Scatophagus argus, Cuv. & A'^al. vii. p. 136. 



Skin of an adult specimen. 



6. SiLLAGO SIHAMA. 



Atherina sihama, Forsk. p. 70. 



Russell, t. 113. 



Sillago sihama, Riipp. Atl. Fische, p. 9, t. 3. f. 1. 



Skin of an adult specimen. 



This species has not been known hitherto as entering fresh water. 

 There may be some doubt with regard to the specific determination 

 of the species in consequence of the bad condition of the example ; 

 yet, even if it be a species different from S. sihama, the fact would not 

 be the less curious, as none of the other species are known to occur 

 at so great a distance from the sea. 



