246 TELEOSTEI. PHISOSTOMI. 



D. 10, A. 7, L. 1. 30. 4 barbels. Interorbital 



space concave. Head 6 to 6| in the total 



length 2. D.jerdoni, p. 247. 



D. 10, A. 6, L. .1. 35. 4 barbels. Interorbital 



space flat ; 5 outer pectoral rays unbrauched 3. D. modestus, p. 247. 



279. (1.) Discognathus lamta. (Fig. 87.) 

 Cyprinus lamta, Ham. Buch. Fish. Ganges, pp. 343, 393. 

 Discognathus lamta, Day, Fish. India, p. 527, pi. cxxii, tig. 4, and 



pi. cxxiii, tig. 1 (see synon.). 



Kul korava, Tarn. ; " The stone Ophiocephalus, Pandi-pakkee, Can." ; 

 Koraji-kaoli,Ilin&. (Mysore); Putter-chettah, Hind. (N.W. Provinces); 

 Choak-si, Beng. ; Dhoyuru and Khooka, Ptmj. ; Malavya, Marathi. 

 B. iii. D. 11 (3-2/8-9). P. 15. V. 9. V. 7 (2/5). C. 17. 



L. 1. 32-36. L. tr. 4-41/5. Vert. 18-14. 

 Length of head 5 to 5| in the total length. Eyes situated in 

 the commencement of the last half of the head, more rarely in its 

 centre ; diameter 5 to 8 in the length of head, 2| to 3 diameters 

 apart. Interorbital space convex. Snout very diversified, either 

 smooth or covered with pores, and having or not having a deep 



Fig. 87. Discognathus lai/i'a. 



transverse depression : iu some specimens, as from the Salt Range 

 in the Punjab, or from the Chumba State, there is a regular 

 spiny covering to a gland on either side of the snout ; in some all 

 the glands are thus constructed. Fins the dorsal arises anteriorly 

 to the origin of the ventral, and is usually less in height than the 

 body. The pectoral shorter than the head. In some forms, and 

 those mostly from rapid streams, the five outer pectoral rays are 

 thickened by a wide layer of skin, the ray itself being either 

 undivided or branched out just at its outer extremity or near to it ; 

 caudal slightly lobed. Air-bladder small, its posterior portion 

 minute. Ova small, numerous. Colour greenish, with a bluish- 

 green band along the centre of the body, and extending along the 

 middle of the caudal fin. Generally a dark spot behind the gill- 

 opening. Abdomen yellowish green. Fins yellowish, stained 

 darker at their margins. In some specimens a black spot exists at 

 the base of each dorsal ray, and all the fins are occasionally tipped 

 with black. In Malabar and Canara some have a dark band along 

 the side, with an orange one above and another below it. 



