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



it appears to be Exostoma vinciguerrae , a species (a single specimen) 

 which was first collected by the late Leonardo Fea in the Khakhyen 

 (Kachin) Hills, Upper Burma, but was wrongl}- identified by 

 Vinciguerra as E. lahiatum (M'Clelland). Vinciguerra mistakenly 

 thought that it extended the distribution of E. lahiatum, which 

 was known onl}^ from Upper Assam (Mishmi). The type of 

 IM'Clelland's E. lahiatum is in the British Museum (Griffith's 

 collection) . 



In both the specimens the under surface of the flat spines of 

 the pectoral and pelvic fins is finely striated, suggesting adhesive 

 properties. 



Distribution. — Upper Burma : Khakhyen Hills and Putao 

 Plains. 



Genus Pscudecheneis, Blyth. 



Pseudecheneis sulcatus (M'Clelland). 



1842. Glyptostenw>i sulcatus, M'Clelland, Calcutta Joui-u. Nat. Hist., II, 



p. 587, pi. vi, figs. I, 2 and 3. 

 i860. Pseudecheneis sulcatus, Blyth, Proc. Asiat. Soc. Boigal, p. 134. 

 1864. Pseudecheneis sulcatus, Giinther, Cat. Fish. Brit. Mus., Ill, p. 264. 

 1877. Pseudecheneis sulcatus. Day, Fish, hid., p. 500, pi. cxvi, fig. i. 



1889. Psendechejieis sulcatus, Id., Faun. Brit. Ind. Fish., I, p. 107, fig. 



1890. Pseudecheneis sulcatus, Vinciguerra, Ann. Mus. Civ. Star. Nat. 



Geneva (ser. 2I, IX, p. 252. 

 1913. Pseudecheneis sulcatus, Chaudhuri, Rec. Ind. Ahis., VIII, p. 255. 



There is one specimen from the Putao Plains measuring 93 mm. 

 in length without the caudal fin. The barbels on the ventral side 

 are short and thick and their surface is broken up into tubules. 

 The lips are lobulated and expanded with a suctorial mouth. The 

 spines of the pectoral and the pelvic fins are flat and expanded 

 and are covered with thick skin. The under surface of these flat 

 spines is finely striated, converting these fins also into an addi- 

 tional adhesive apparatus. The conspicuous adhesive disk on the 

 chest is oval and is made up of sixteen thick and broad transverse 

 folds with a broad margin ; posterior to this apparatus the skin 

 over the anterior portion of the abdomen is loose and corrugated 

 in finer folds. The gill-opening is not entirely confined to the 

 dorsal side as in Exostoma, but continues just a little on the 

 ventral surface to the border of the transverse folds. 



Distribution. — Darjeeling ; Khasi Hills ; Yembung (Abor 

 country): and Khakhyen (Kachin) Hills, Upper Burma. 



Genus Aborichthys, Chaudhuri. 

 Aborichthys kempi, Chaudhuri. 



1913. Aborichthys kempi, Chaudhuri, Rec. Ind. Mus., \'III, p. 245, pi. vii, 

 figs. I, la and ib. 



There are two specimens in the collection, measuring 82 mm. 

 and 80 mm. in length, obtained from hill streams near Tanja. 

 The two specimens differ slightly from one another and from the 



