548 BULLETIN 18 8, UNITED STATES NATIONAL MUSEUM 



represented by five specimens in a collection made by Annandale in 

 the Tale Sap, Peninsular Thailand, in 1916. A length of li^ inches 

 is attained in India. A Tale Sap specimen, 16 mm. long, was a female 

 full of eggs, which were very num.erous, closely packed together, and 

 0.5 mm. in longest diameter. 



This diminutive species has rather large scales (25 in longitudinal 

 series, 6 in transverse series between second dorsal fin and origin of 

 anal), head entirely alepidous, one or two predorsal scales, outer row 

 of teeth in both jaws canine to caniniform, mucronate tongue, and 

 body marked by 7 to 11 yellow cross bands, with round spots on side of 

 head, and ventral fins nearly wholly black. 



CTENOGOBIUS ALCOCKII (Annandale) 



OoMus alcocJcii Annandale, Jouvn. Proc. Asiatic Soc. Bengal, vol. 2, p. 201, 



fig. 1, 1906 (Bengal). 

 CtenogoUus alcocki Hora, 1924a, p. 494 (Tale Sap). 



Several adult and young specimens of this species, otherwise known 

 from eastern India, were collected by Dr. Annandale in the Tale Sap, 

 Peninsular Thailand, mostly from the inner lake at the mouth of the 

 Patalung River. The local material has been compared by Dr. Hora 

 with the types from lower Bengal and found to be in general agree- 

 ment. A length of 16 mm. has been recorded for Indian specimens, 

 while 21 mm. is the maximum for Thailand specimens. A female, 

 16 mm. long, from the Tale Sap was in spawning condition, the eggs 

 being 0.9 mm. by 1 mm. 



The species as described by Annandale was said to have the dorsal 

 formula V-I, 6 or 7, but Dr. Hora found 6 spines in the first dorsal. 

 A further feature, which may prove to be incorrect, is the presence 

 of a large patch of ctenoid scales on the opercle, shown in the figure 

 but not referred to in the text; if this patch of scales is actually 

 present, the species cannot belong in this genus. 



CTENOGOBIUS CHIENGMAIENSIS (Fowler) 

 RhinogoUus cJiiengmaiensis Fowler, 1934a, p. 157, fig. 126 (Chiengmai). 



Described from three specimens, 2.9 to 3.5 cm. long, taken at 

 Chiengmai, in December 1932, this goby is found farther inland than 

 any other local species, except one. Important features are the ab- 

 sence of any scales on the midline of the back anterior to the dorsal 

 fin, and the presence of "simple conic, little curved, minute, uniserial 

 teeth in jaws." As the existence of uniserial teeth is not otherwise 

 known in this genus and is at variance with the generic definition, it 

 is probable that an error has occurred in the description. 



