Vol. 110 - Part III - Zoological Survey of India

32 Rec. zool. Surv. IndiaTable 2 : Cont'd.Sl. No. Name of the Species Characteristic features Diagnostic features20 Barilius nelsoni Hence not described.(of Barman, 1989, asynonym of Bariliusradiolatus of Talwar& Jhingran, 1991)21 Barilius bola/guttatus Hence not described.(Separated under thegenus Raiamus ofHowes, 1980)22 Barilius arunachalensis D.i.7, A.i.8, P.ii.11, Rough tubercles, prominent on snout & lowerV.i.8,C.18 jaw. Barbels absent. Snout deeply humped.Mouth upturned, gape not reaching orbit. Lipsunequal, lower lip slightly longer. Lateral linescales incomplete, ceases at the 35th scale.Dorsal inserted ahead of anal, but nearer tocaudal base. Dorsal fin extends to 3rd ray ofAnal. Scales large, cycloid and with oval spotsat the dorsal side & diamond shaped spots atthe ventral surface and lateral line scales withsingle large spots and a few bilobed spots.Pectoral tip just reaching ventral fin base. Twobroad band almost ‘V’ shaped on each sidebehind gill opening. Caudal fin with prominentstreak at the bifurcation of the caudal lobe.Longitudinal streak at the dorsal fin andprominent streak at the bifurcation of caudal.Caudal unequal, lower lobe longer. The lengthof fish recorded upto 16.8 cm.*Sub-speciesACKNOWLEDGEMENTSAuthors are grateful to the Director, ZSI, Kolkata,to grant the permission for field survey and the Officerin-Charge,APFS, ZSI, Itanagar, for extendingdepartmental facilities. Our sincere thanks are due toDr. Ambrish Kumar, Scientist-B, BSI, Itanagar, for theidentification of plants and characterization of habitats.Kind support and active cooperation at various levelsfrom the Forest Department of Arunachal Pradesh isalso gratefully acknowledged. Special thanks are dueto DFO, D’Ering WL Sanctuary and staff of D’EringWL Sanctuary namely Shri B. Magu, Range Officer,Mr. Ram Ering, Forester, Mr. Kebiyon Mitkong & Mr. J.N. Terrang, Forest Guard, Mr. Arun Kalita, Boat Driver,and Mr. Tanong Tamir, Mr. Bugeswar Tayang, Mr. SatishDas, Boatman. A local person Mr. Tibang Tayang alsohelped during survey in Borguli Range and thanks arealso due to him.REFERENCESBorang, A., Bhatt, B.B., Chaudhury, S.B., Borkotoki, A. and Bhutia, P.T. (2005). Checklist of the snakes of ArunachalPradesh, Northeast India. J. Bombay Nat. Hist. Soc., 102(1) : 19-26.