1921.J S. L. HoRA : Fishes of the genus Garra. 649 



vSYNOPSiS OF THE INDIAN AND SOME OF THE 

 EXTRA-INDIAN SPECIES OF GARRA. 



In the synopsis I have included 21 Indian and 5 extra-Indian 

 species of Garra. With the exception of G. imherhis, which can 

 be easily recognised by the total absence of its barbels, I have 

 examined specimens of all Indian species. I have not included 

 G. wanae from Waziristan because in Regan's description of the 

 species I could not find those characters which I have employed 

 in building up the synoptic table. 



The table does not apply to young individuals. The names 

 of extra-Indian species are placed in square brackets. 



a. Barbel-'- absent ... . G. imberbis (Vincigu- 



erra). 

 a . Barbels present. 



/'. Pupil of eye \vho!l\- in posterior half of head. 

 c. Proboscis present. 

 (/. Proboscis trilobed. 



e. Lateral lobes of proboscis short and in front 



of nostrils ... \_G. ai-abica, sp. nov.] 



e'. Lateral lobes of proboscis almost as long as 



central lobe, covering nostrils .. ... G. hicoynuta, Rao. 



d . Proboscis a single projeclion without lateral 

 lobes. 



e. Proboscis well-developed with well defined 

 lateral tubercular areas. 



f Snout as seen from below trenchant and 

 bearing a well-defined almost semi-circular 

 lobe ; space between gill-openings on under 



surface less than post-orbital length of head. G. nioiitl-sahi, sp. nov. 

 /'. Snout from below evenly rounded and 

 convex; space between gill-openings on 

 under surface ereater than post-orbital 

 length of head. 



g. Eyes small, contained 5 to 6 times in 

 length of head ; distance between anus 

 and origin of anal fin less than 1/3 the 

 distance between origins of anal and ven- 

 tral fins .. ... ... G. gotyla iGray). 



g' . Eyes moderately large, contained 3"7 to 

 4'3 times in length of head ; distance be- 

 tween anus ancl origin of anal fin greater 

 than 1/3 the distance between origins oi 

 anal and ventral fins ... ... G. steiwrliynchus {]er- 



don). 

 c . Proboscis not well developed, represented by 

 a prominent squarish area in front of nostrils ; 

 lateral tubercular areas poorly developed. 

 /. Dorsal fin considerably higher than length 



of head ; lobes of caudal fin equal ... G.gravelyi 6 (.\nnan- 



dalc). 

 /■'. Dorsal fin almost equal to or less high 

 than length of head ; lobes of caudal fin not 

 equal ... ... ... ... G. iiasutus (McC\i:\\.). 



r' . Proboscis absent. 



d. Tubercular areas on snout present . G. jerdcmi, Day. 



d'. Tubercular areas on snout absent ('. (iiinaiidalei . Hora. 



b' . Pupil of eye not wholly in posterior half of head, 

 f. Pupil of eye nearer posterior margin of opercu- 

 limi than tip of snout. 



