NOTES ON A COLLECTION OF FISHES FROM NORTH SINKIANG, CHINA

This report is based on the collection made by the writers in April to July, 1964, from North Sinkiang, China. It includes 40 species and 1 subspecies, of which there are a new species, a new subspecies, 5 new records to the Chinese fish-fauna and 4 to Sinkiang fish-fauna. A preliminary faunal analysis is given in the Chinese-text. Descriptions of the new fishes are given in the following. Nemachilus minutas Li, sp. nov. (Figs,1a-b)Diagnosis: Related to Nemachilus stoliczkae (Steind.), but distinguished by the following differences.Description: D. iii-7; A. iii-5; P. i-10; V. i-7; C. 16 (branched). More than 120 specimens, body length to caudal base, 34.6-52.6 mm. Length of tail 3.26-3.67 in body length, depth 5.1-6.29, head 4.2-4.8. Snout 2.5-3.1 in head, eye 6.3-7.3, inter-orbital 2.4-3, longest dorsal ray 1.2-1.8, longest anal ray 1.6-2.2, pectoral 1.1-1.5, ventral 1.8-2.2, caudal 1.-1.2, length of caudal peduncle 0.9-1.1; depth of caudal peduncle 2.0-2.7 in its length.No. 64-1963 (holotype), body length 52.6 mm, , collected from the Kalagu Water Reservoir (卡拉古水库), Pichong (鄯善), June 28, 1964; Nos. 64-1692 and 1694-1702 (paratypes), collected from the same locality; and also many others collected from Urumchi (乌鲁木齐), Mi-chyuan (米泉), Wen-chyuan (温泉)and Ulho (乌尔禾). The holotype, some paratypes (Nos. 64-1692, 1696 1698) and a number of others are now deposited in the Institute of Zoology, Academia Sinica; the other paratypes (Nos. 64-1694-5, 1697, 1693-1672) and some other specimens are kept in the Institute of Bio-Pedology, Sinkiang Branch, Academia Sinica, Bureau of Water Conservancy, Sinkiang Uighur Autonomous Region and the Department of Biology, Sinkiang University respectively.Cottus sibiricus altaicus Li et Ho, subsp. nov.Diagonosis: Closely related to Cottus siblricus Kessler, but with differences as given in the table below:Description: D. Ⅶ-Ⅷ, 17-19; A. 12-14; P. 13-15; V. 1-4; C. 8 (branched). Pores in lateral line 34-35. Gill-rakers in outer row 4-5, inner row 5-6. 53 specimens, body length 70.2-138.1 mm. Tail length 2.04-2.28 in body length, depth 4.6- 7.9, head 3.1-4.0. Snout 3.3-4.7 in head, eye 4.3-6.2, interorbital 5.5-8.5, longest dorsal spine 1.8-2.7, longest dorsal ray 1.8-3.1, longest anal ray 1.7-2.3, pectoral 0.8-1, ventral 1.2-1.6, caudal 1.3-1.6, length of caudal peduncle 1.4-2.0. Vertebrae 34-35. Pyloric caeca 6. Length of intestine shorter than half of body length. No ait-bladder.No. 64-997 (holotype), body length 73 mm, Altai (阿勒泰), May 22, 1964; Nos. 64-979-999 (paratypes) and also many others, same data. Nos. 64-1271-1276 and 1307, Fu-wen (富蕴), June 4, 1964. The holotype, paratypes (Nos. 64-979-980, 983-985, 988 992) and many others, are now deposited in the Institute of Zoology, Academia Sinica, the other paratypes (Nos. 64-981-982, 986-987, 989-991) are respectively kept in the Sinkiang Branch, Academia Sinica, Bureau of Water Conservancy, Sinkiang Uighur Autonomous Region, and the Department of Biology, Sinkiang University.