518 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



able or sound. The International Rules of Zoological Nomenclature 

 provide for the formation of a family or subfamily name from the stem 

 name of its type genus, thus excluding the use of two or more generic 

 names in forming a new family or subfamily name. 



The local species comprise one common and well-known form and 

 one whose status is doubtful but which may be identified tentatively 

 with the JaA'an form. They may be distinguished by the following 

 characters : 



Irt. Caudal fin truncate ; body white, translucent, a few round black spots on side 

 and abdomen and a row of minute black spots at base of anal fin chuno 



1&. Caudal fin obtusely rounded; body greenish translucent; upper lip black; a 

 faint black band on anal fin brachypterus 



GOBIOPTERUS CHUNO (Hamilton) 



Figure 103 



GoUus chiino Hamilton, 3822, pp. 53, 366 (below Calcutta). 



Gohiella peUucida Smith, 1931a, p. 33, lig. 16 (Bangkok).— Fowleb, 1937, p. 248 



(Bangkok). 

 Oobiopterns chuno MuiiERji, 1936, p. 9, figs. 1, 2 (Bangkok, Tale Sap; Singapore; 



India). 



Minute transparent gobies found in abundance in fresh water in 

 Bangkok appeared to represent a new genus and new species and were 

 described under the name Gohiella pellucida. It subsequently de- 

 veloped that Gohiopterus Bleeker (1874 [453] with the type 

 (brachypteinis) from Java, is an earlier name for the same kind of 

 goby, and Gohiella became a synonym. 



Figure 103. — GobiopUrus chuno (Hamilton). Drawn by Na,i Chote Suvatti; courtesy 

 of the Thailand Government; 



Hamilton (1822), under the na.mQ GoMus chimo, described a fish 



that for over a hundred years seems to have been left in an uncertain 



.status until Hora (1934), collecting in the type locality, the mouth of 



the Ganges, was able to reidentify the species and give it proper generic 



allocation. Hamilton's description w^as so defective in essential par- 



