new Cyprinoid Fishes from Mysore. 49 



Stone carps with a cylindrical or subcylindrical body, 

 covered by scales either moderate or large *. Head never 

 large, snout rounded, bearing raucous pores or spiny 

 tubercles, chiefly in adult males, with or without a pro- 

 tuberance between or outside each nostril f. Mouth ventral 

 cresceutic with both lips well developed, the upper usually 

 fringed and the lower invariably developed into a powerful 

 adhesive disk % ; barbels short, usually four, sometimes 

 only two or absent §. Pharyngeal teeth uncinate, in three 

 closely approximate rows — 2, 4, 5/5, 4, 2 or 5, 3, 1/1, 3, 5. 

 Dorsal hn without osseous ray, upper margin slightly 

 emarginate or deeply notched, commencing in front of the 

 ventrals. Pectorals always horizontal, rarely exceeding the 

 length ot the head. Anal scales not generally differentiated. 



Distribution. — Fresh-water forms inhabiting tanks, rivers, 

 and hill-streams throughout the Indian Empire, Ceylon, 

 Malayan Peninsula, aud Borneo. 



Synopsis of species of Garra collected up till now in the 

 Mysore State and Coorg (S. India) : — 



1. Garra lamta, H. B. 



2. Garra jerdonia, Day. 



3. Garra stenorhynchia, Jerdon. 



4. Garra jerdonia brevimentalia , var. n., Rao. 



5. Garra platycephala, sp. n., Rao. 



6. Garra bicornuta, sp. n., Rao. 



Systematic Account of the Species. 



1. Garra lamta, H. B. 



1822. Ci/prinus lamta, II. Buchanan, op. cit. pp. 343, 393. 



1841. Chondrostoma mulh/a, Sykes, Trans. Zool. Soc. ii. p. 359. 



lyG8. Discognathus lamta, Giinther, up. cit. p. 69. 



18U9. Mayoa modestus, Day, Proc. Zool. Soc. p. 553. 



1871. Discognathus modestus, Day, Jouru. As. Soc. Bengal, (2) xi. 



p. 108. 

 1878. Ducognathus lamta, Day, Fish. Ind. Text. vol. ii. p. 527. 



* Garra borneana, Vaill., and^Cr. bicornuta, sp. n., Rao, have larger 

 scales than most Indian species. 



t Two protuherauces so far known only in G. bicornuta, Rao. 



X Feebly marked in G. adisca, Annan. Rec. Ind. Mus. 1919, vol. xvi. 

 p. 68. This is a very variable structure, whose degree of development 

 depends on the conditions amidst which the species lives. 



§ G. imberbia, Vincig., from Burma, has no barbels (Ann. Mus. 

 Genova, 1889, (2) ix. (xxix.) p. 281) ; and G. variabilia, Hack., has 

 only two, perhaps occurring within the limits of ths Indian Empire 

 (Journ. As. Soc. Bengal, (n. s.) ii. p. 8 (1906)). 



Ann. & Mag. N. Hist. Ser. 9. Vol. vi. 4 



