mit of second dorsal fin 



-A 



o 



2 



18 mm. 



22-1 mm. 



27-6 



25-3 



22-2 



19-6 



4-4 



5-5 



17-6 



18-1 



17-6 



18-1 



51-1 



59-5 



21-6 



19-5 



11-1 



9-5 



17-6 



20-4 



5-5 



6-8 



27-6 



24-0 



13-8 



10-4 



1923.] Fauna of the Chilka Lake : Fish. 755 



Measurements in hundredths of total length without caudal fin. 



Total length (without caudal fin) 

 Length of head 

 Depth of body- 

 Length of snout 

 Depth of head at occiput 

 Width of head ... 

 From tip of snout to anterior li 

 Length of pectoral fin 

 Length of pelvic fin 

 Length of caudal fin 

 Diameter of eye ... 

 Length of caudal peduncle 

 Height of caudal peduncle 



Sub-family ELEOTRINAE. 



Genus ELEOTRIS Gronovius. 



Eleotris cavifrons Blyth. 

 I860. Eleotris cavifrons, Blyth, Joum. As. Soc. Bengal XXIX, p. 145. 

 1876. Elotris cavifrons, Day, Fish. India I, p. 313, pi. lxv, fig. 6. 



This species is represented in the Chilka Survey Collection by a single specimen, which 

 was collected near Satpara. The species has so far been known from the Andamans, where 

 it is said to grow to 4 inches in length. The Chilka Lake specimen is 37 mm. in total length 

 without the caudal. 



Eleotris fusca (Bl. & Sehn.). 

 1876. Eleotris fusca, Day, Fish. India I, p. 313, pi. lxv, fig. 7. 



Of this species there are four specimens in the collection. The largest example is about 

 7 cm. in total length including the caudal. Two of these were obtained near Satpara, one 

 near Barkul and the other one from near Mahosa. 



Eleotris fusca is found all along the Indian Coast and its range extends to the Malay 

 Archipelago. It is also met with along the African coast and is stated to ascend rivers for 

 a considerable distance. 



Eleotris sp. 



There is a small specimen of the genus Eleotris, from Mahosa near Barhampur Island, 

 which I have not been able to refer to any known species of the genus. I have refrained 

 from naming it on account of the immaturity of the specimen. A short description of it is 

 given below to facilitate reference in future. 



The specimen is 23-5 mm. in total length without the caudal. The head is broad post- 

 eriorly but tapers towards the anterior end and the snout is almost sharp and pointed. The 

 length of the head is contained about 3 times in the total length without the caudal. The 



