1 G4 TELEOSTEI. PIIYSOSTOMI. 



shield exists between the process and the basal bone of the dorsa 

 fin. Scapular process well developed ; humero-cubital process 

 rather longer than high at its base. Barbels a short maxillary 

 pair, two pairs behind the syraphysis o f the lower jaw. Teeth in 

 an uninterrupted, semicircular villiform band across the palate. 

 Colour dull yellow, with short, vertical, brown marks and a dark 

 shoulder-spot. 



Hub. Eastern Bengal and Assam. This fish appears not to 

 exceed 2 or 3 inches in length. The figure is twice the natural 



174. (2.) Liocassis fluviatilis. 

 Liocassis fluviatilis, Day, Fishes of India, Supplement, 1888, p. 805. 



B. vi. D. 1/7 | 0. P. 1/7. V. 6. A. 11. C. 18. 



Length of head 4^, of caudal fin 5|, height of body 5 in the 

 total length. Eyes rather small, high up and in the anterior half 

 of the head. The greatest width of the head equal to two thirds 

 of its length. There is a moderate rise from the snout to the base 

 of the dorsal fin. Upper jaw the longer ; upper surface of head 

 smooth. Barbels a maxillary pair reaching to the posterior edge 

 of the orbit, no others were detected. Tenth in an uninterrupted 

 villiform band across the palate. Fins dorsal spine smooth and 

 nearly as long as the fourth ray, which is four fifths as high as the 

 body below it. Adipose dorsal rather long, commencing a short 

 distance behind the base of the rayed fin. Pectoral spine denticu- 

 lated internally. Colour yellowish horny, with darker shades of 

 olive-brown on the snout and along the back, also some cloudy 

 markings. A large black blotch on the lateral line above the anal 

 fin, another between the pectoral and first dorsal. Tip of dorsal 

 and ends of both caudal lobes black. 



Hob. Col. Tickell obtained four examples, the largest 3| inches 

 long, from the Anin, a stream rising near Weywoon, Wagroo, in 

 the Tenasserim Provinces. 



21. Genus RITA, Bleeker. 

 Syn. Gogrius, Day. 



Branchiostegals eight. Gill-openings with a free posterior edge 

 and not confluent with the skin of the isthmus. Mouth transverse, 

 upper jaw the longer ; nostrils on either side subcontiguous, but 

 the pair on one side widely separated from that on the other. 

 Eyes subcutaneous, without free circular margins. Barbels six, a 

 minute pair at the posterior nostrils, a maxillary and a mandibular 

 pair. Teeth villiform in both jaws or mixed with molariform ones 

 in the mandibles, molariform on the palate. One strong spine and 

 six rays in first dorsal fin, the adipose and the anal of moderate 

 length. Ventral posterior to the base of the dorsal, and having 



