280 F. Day — Monograph of Indian Cyprinidm. [No. 3, 



Colours. — Silvery, darkest in the upper half of the body. Ventrals 

 and anal tipped with orange. 



Hob. Hill ranges near Akyab in the Tenasserim provinces ; 

 two specimens obtained up to 5^ inches in length. 



B. Smooth dorsal ray. 



2. Semiplotus M'Clellandii. 



Cyprinus semiplotus, M'Clell., Ind. Cyp., pp. 274, 346, pi. xxxvii, fig. 2. * Cuv. 

 and Val., vol. xvi, p. 68. 



Semiplotus M' Clellandii, Bleeker, Atl. Ich. Cyp., p. 25. 



Sundaree and Sentoree, Assam. 



B. III. D.~; P. 16; Y. 10; A. 2/7; C. 19; L. 1. 27; 

 L. tr. 6/5. 



Length of head 1/6: of caudal 1/5: height of body 4/17, 

 according to a bad skin. 



Eyes. Diameters 2/7 of length of head : 1 diameter from end 

 of snout, and 2 diameters apart. 



Snout thick, prominent, with a row of pores across it. 



Fins. Osseous dorsal ray, strong, smooth, its stiff portion being 

 three quarters the length of the head. 



Lateral line — rather concave. 



Hab. Assam. 



Genus. Catla, Cuv. and Val. PI. xxi, fig. 2. 



Gibelion, Heckel. 

 Hypselobapjbus, Bleeker. 



Head broad : snout with very thin integuments, and no upper lip, 

 whilst the inferior is moderately thick, with a continuous free posterior 

 margin. The lower jaw with a moveable articulation at the symphysis, 

 but destitute of any prominent tubercle. JVo barbels. Gill rakers long, 

 rather strong and moderately wide apart in the adult, but fine and 

 closely set in the immature. Eyes with free orbital margins. Pharyn- 

 geal teeth plough-shaped, 5, 3, 2/2, 3, 5. Dorsal fin rather long, without 

 osseous ray, whilst it commences somewhat in advance of the ventrals : 

 anal short : caudal forked. Scales of moderate size, no tiled ones 

 along the base of the anal fin. Lateral line continuous to the centre of 

 the base of the caudal fin. 



