ICHTHYOLOGY. 
21 
Kessler does not record any of this family from the Jaxartes, or, in fact, from the rivers 
immediately descending from the Tian Shan or the Alatau Mountains. TV e are, therefore, left 
to surmise that in the hills whence these fishes were taken is the abrupt termination of 
members of the family Salmonidce, which does not possess a solitary representative in 
Hindustan, except the S. levenensis (introduced on the Nilgiris in Madras). 
If we now take a short review of the Fresh Water Fishes of India we find much as 
follows : — 
AC ANTHOPTER Y GIL 
Genera Atnbassis, Badis, Nand/us, Pristotepis, Scicena , Gobius and some allied genera, 
F hy nc hob dell a , , Mugil, Anabas, Poly acanthus, Osphromenus, Trichogaster, E tropins 
exist in India, hut are absent from the fresh waters of Afghanistan, Turkestan, and 
Yarkand. Whether existing only in large rivers or distributed more generally over 
India, none pass the boundary of the Himalayas. 
Mastacembelus and Ophiocephalm are found in India and in Afghanistan ; both ascend 
for some height the Himalayas and other hill ranges. 
PHYSOSTOMI. 
SilukidtE. Genera Erethistes, Macrones, Pita, Pang asms, Pseudeutropius, Wallago , 
Olyra, Chaca, Clarias , Saccobranchns, Sihmdia, Ailia, Ailiichthys, Eutropiichthys, 
Sisor, Gagata, Nangra, Bagarius, Pseudccheneis, Glyptostermm exist in India, but 
not in Afganistan, Turkestan or Yarkand. 
Callichrous and Amblyceps, which are found in India, appear to be present in Afganistan, 
and the former also in Kashmir. 
Exostoma is found along the Himalayas ; Silurus in Turkestan and India. 
C ypkin ODONT iDiE . Cyprinodon and Haplocheilus are found in India. 
CypniNimE. Genera Eomaloptera, Psilorhynchus, Oirrhina, Osteochelus, Scaphiodon, 
Semiplotus, Catla, Amblypharyngodon, Nuria, liasbora, Aspidoparia, Rohtee, 
Danio, Perilampus, Chela, and various genera of Cobitidince exist in India. 
Eiscognathus, Labeo, and Barilms are common to India and Afghanistan, but are evi- 
dently Indian forms. 
Oreimis, Schizothorax, and Barbus, are found in India, also in Afghanistan, and the 
two last in Turkestan, whilst Schizothorax is common in Yarkand. Cobitis or 
Nemacheilus seem to extend everywhere. 
Clupeid^e and Notopteeid.e. Of the genera belonging to these families, and which 
exist in the fresh waters of India, none go beyond the base of the Himalayas. 
The Fishes of Yarkand 1 or Eastern Turkestan consist of species of the following genera : 
Schizothorax, found also in Afghanistan and Western Turkestan ; one species on the slopes 
I here omit the genera Exostoma from the Himalayas, and Oreinus from the Himalayas and Afghanistan. 
E 
