20 SECOND YARKAKD MISSION. 



SILTJRID.S:. Siluris glanis, Linn. Generally spread throughout Western Turkestan, having 

 been received from the Jaxartes, Oxus, and Sarekshan or Tarafshan Rivers. 



CYPRINIDTE. Cyprinus carpio, Linn., from the Jaxartes, Oxus, Sarekshan Rivers. 

 Barbus conocephalus, Kess., from Sarekshan. B. platyrostris, Kess., from the River Aksu 

 falling into Lake Balkash. B. lacertoides, Kess., from Jaxartes and its tributaries. B. 

 brachycephalus, Kess., from Jaxartes and Oxus. Schizothorax aksaiensis, from the River 

 Aksai. S . fedtschenkoi, Kess., S. affinis, Kess., and S. eurystomus, Kess., from, the Sarekshan 

 River. S. orientalis, Kess., from a lake on the Alatau Mountains, the waters on the Western 

 Turkestan side of which drain to Lake Balkash. Diptychus severzowi, Kess., Aksai and 

 Ottuk Rivers to 10,000 feet. D. dyboicskii, Kess., River Aksu. Gobio fluviatilis, Cuv., 

 widely distributed in Western Turkestan, specimens received from near the towns of Tashkend, 

 Khojend, Djisak, and from the Ak Daria. Abramis brama, Linn., Jaxartes and its tribu- 

 taries. A. sapa, Pallas, rare, from the Jaxartes. Acanthobrama kuschakeivitschi, Kess., 

 Jaxartes. Pelecus cultratm, Linn., Sea of Aral. Abramis chalcoides, Giild., rather rare, 

 obtained in the Ak Daria and Durman Kul. A. iblioides, Kess., creeks near Janikurjan. A. 

 fasciatus, Nord., Sarekshan. A. tceniatus, Kess., Jaxartes. Aspius rapax, Pallas, Jaxartes 

 and its tributaries. A. esocinus, Kess., Jaxartes and Oxus. Leuciscus erythrophthalmus, 

 Linn., Jaxartes. L. squaliusculus, Kess., from near Khojend on the Jaxartes and Janikurjan. 

 L. rutilus, Linn., Jaxartes and Aigus Lake. 



COBITIDIN^E. Cobitis longicauda, Kess. (scaled), one specimen from the Jaxartes. 

 C. uranoscopus, Kess., from near Magian, Tashkend, Hhodjacluk, and Lake Iskander, the 

 waters of which appear to drain to the Sarekshan River. C. dorsalis, Kess., creeks near Jani- 

 kurjan. C. elegans, Kess., and C. tcenia, Kess., river near Tashkend, a tributary of the 

 Jaxartes. Diplophysa strauchii, Kess., river Ili, falling into Lake Balkash. D. labiata, 

 Kess., River Urdjar, falling into Lake Ala. 



SALMONID^;. Salmo oxianus, Kess., river Darant, falling into the Kisil-su, one of the 

 upper tributaries of the Oxus. 



ESOCID.E. Esox Indus, Linn., Jaxartes and its tributaries. 



CHONDROPTEKYGII. Acipenser schipa, Lovetsky, Jaxartes, Casalius River. Scaphirhyn- 

 chus fedtschenkoi, Kess., Oxus. 



The foregoing fishes of Western Turkestan ' mainly consist of 



(1st). Those descending from the north or spreading from the east or west, such as 

 Perca, Lucioperca, Coitus, Gobio, Abramis, Acanthobrama, Pelecus, Alburnus, 

 Aspius, Squalius, Leuciscus, Acipenser, and Scaphirhynchus. 



(2nd}. Those common to Afghanistan and Ysrkand, as Schizothorax, Barbus, Loaches 

 ( ? genus). 



(3rd}. Those found also in Yarkand, as Schizothorax and Diptychus. 



(4th). Silurus, (which will be alluded to). 



Lastly, Salmo, on the slopes of the mountains where the rivers descend to the Oxus. 



The existence of one of the Salmonida;, termed Salmo orientalis by M'Clelland, was 

 well known to Dr. Stoliczka ; and a special object of his search (as he informed me previous 

 to starting) would be to try and ascertain its distribution. Griffith found this fish " in the 

 Bamean River, a stream that falls from the northern declivities 'of the Hindoo Koosh into 

 the Oxus." 



1 I have to thank Mr. F. Carl Craemers for kindly translating some Eusaian localities, which I should not otherwise have been 

 able to give. 



