196 Records of the Indian Museum. [Vol. XXII, 



The Manipur examples agree with Vinciguerra's description 

 of the species except for a little variation in colour which is, 

 otherwise, characteristic of the species. In the younger specimen 

 the number of bands on the caudal and the dorsal fins are fewer 

 in number and in the adult black dots are present between the 

 vertical bands on the body. 



Measurements in millimetres. 



Total length (including caudal) 



Length of caudal 



Depth of body 



Length of head 



Diameter of eye 



Length of snout 



Height of dorsal fin 



Length of pectoral 



Length of caudal peduncle 



Height of caudal peduncle 



Botia histrionica is only found in Burma and the Manipur 

 Valley. 



Lepidocephalichthys guntea (Ham. Buch.). 



1889. Lepidocephaliclithys guntea, Vincig'uerra, op. cit., p. 330. 



There is only one specimen of this species taken at Ghaspani 

 '1527 ft.) at the base of the Naga Hills, Assam. 



Lepidocephalichthys berdmorei (Blyth). 



l88g. Lepidoceplialiclithys berdmorei, V" incigiierra, op. cit.. p. },\l. 

 1918, Lepidocepiialiis berdmorei, Annandale, op. cit.. p. .43. 



This is the commonest loach in the valley being found every- 

 where, both in the muddy and the hillstreams of the valley. It 

 was curious to note that not even a single specimen of this 

 species was obtained in the Loktak Lake, whereas it was quite 

 common in a sluggish muddy stream near Potsengbaum. 



The chief character that distinguishes this species from the 

 preceding one is the mandibular flap. The mandibular flap in 

 L. berdmorei is thickened and pliated anteriorly while posterior- 

 ly it is produced into three or more short barbel-like processes. 



Lepidocephalichthys irrorata, sp. aov. 



Plate IX, figs. 5, 5rt, 55. 



D. 2/7. A. 3/5. V. 1/6. P. 7—8. C. 15—16. 



This comprises small fish with the body slightly compressed 

 from side to side. The dorsal profile is slightly arched while 

 the ventral is straight and horizontal throughout. The length 

 of the head is contained 6t — 7J times, the depth of the body 



