138 Records of the Indian Museum. [Vol. XVI, 



is much more variable in the number of its dorsal and anal fin-rays 

 than pubHshed descriptions indicate. The Assamese form 0. 

 stewarti, Play fair, and my own recently described 0. harcourf- 

 butleri from the Southern Shan States may ultimately prove to be 

 no more than local races. In both of these the number of vertical 

 fin-rays is variable. In 0. harcourt-hutleri ' there are from 28 to 38 

 in the dorsal fin and from r6 to 25 in the anal. Dr. Chaudhuri tells 

 me that in a series of 0. stewarti from Shillong he finds the cor- 

 responding numbers to be 34 to 39 and 22-27. In the typical 0. 

 gachua the variation is at least as great as in the latter, but it will 

 be better to defer a more precise statement until good series are 

 examined from numerous localities. 



Family Oobiidae. 



Gobius bombayensis, sp. nov. 



(Plate I, fig. 5). 



A small species resembling G. viridipunctatus. Day, but with 

 fewer vertical fin-ra^^s and without enlarged canine teeth ; allied 

 to G. chilkensis, Jenkins,* but with a much longer snout and smaller 

 caudal fin. 



D. 6-1/7-8. P. 17-18. A. 1/7. L.e. 28-29. L. tr. 7. 



Size small ; habit slender, slightly compressed. Total length 

 about 4^ the length of the head and about 5| the greatest depth 

 of the body. Dorsal profile slightly arched. Caudal peduncle 

 distinct, rather more than twice as long as deep Head coarse ; 

 snout blunt, rather short, less than | as long as the part of the 

 head behind the eye, nearly twice as long as the eye. Mouth large, 

 slightly oblique ; the posterior extremity of the maxilla situated 

 below the middle of the eye; lower jaw very slightly longer than 

 the upper ; teeth small ; tongue notched in front, without teeth. 

 Eye large and prominent, its length contained 5 times in the 

 length of the head. Dorsal fin low, with none of the rays 

 elongate. 



Colouration. — Pale yellowish, irregularly blotched with black. 

 Anterior dorsal fin infuscated, with a rather deep whitish border; 

 posterior dorsal with three longitudinal rows of small dark spots ; 

 other fins irregularly infuscated, the caudal with obscure and 

 irregular vertical dark bars. 



The largest specimen examined is 42 mm. long. 



Type-specimen. — F 9698/1, Zool. Survey of India [Ind. Mus.). 



Locality. — The species is not uncommon in the Medha river at 

 Satara. 



' Rec. hid. Mus., XIV, p. 54, fig. 2, pi. ii, fig. 7, pi. i\', figs, 16. 17 ( 1918). 

 ^ Rec. Ind. Mus., V, p." 137, pi. vi, fig. 2. 



