摘要
1992年6月和1991年IO月，作者在广西凌云县和贵州瓮安县各采获一批条鳅亚科鱼类标本，经研究鉴定，分别为南鳅属一新种和一新亚种，定名为凌云南鳅，新种SchisturalingyunensisLiaoetLuo，sp．nov．和小眼戴氏南鳅，新亚种SchisturadabryimicrophthalmusLiaoetWang，subsp．nov。
This paper reported a new species of Schistura and a new subspecies of Schistu-ra dabryi. They were respectively named as Schistura lingyunensis, sp. nov. and Schitura daryi Microphthalmus subsp, nov. The specimens of S. lingyunensis were collected from lingyun County of Guangxi (24°25'N, 106°30' E), while those of S. dabryi microphthalmus were from Wengan County of Guizhou (26°53'N, 107°2'E).Schistura lingyunensis, sp. nov' (fig. 1)Holotype No. 92vi003, total length 55mm, standard length 45. 5mm.paratypes 7: No. 92vi001 to 92vi002 and 92vi004 to 92vi008, total length 55 to 76mm, standard length 45. 5 to 62mm.Description D. iii- 6 or 7; A. iii-5; P. i-9 V. i-5 to 7. Vertebrae, 4+35.Body depth in standard length, 6. 1 to 8. 3; head length, 3. 9-4. 4; length of caudal peduncle, 5. 2 to 5. 9; and its depth 9. 3 to lo. 6. Length of snout in head length, 1. 9 to 2. 2; diameter of eye, 23 to 28; and width between eyes, 2' 8 to 3. 4;Depth of caudal peduncle in its length, 1. 7 to 2. 2.Diagnosis This new species resembles Schistura incerta Zhu et CAo, but the former has much smaller eyes, a much longer caudal peduncle, an incomplete lateral line and 6 or 7 branched rays in dorsal fin-Schistura dabryi micropbtbalmus, subsp. nov- (fig. 2)Holotype No. 91x005, total 55mm, standard length 46mm. paratypes 7: No.91×001 to 91×004; 91×006 to 91×008, total length 50~ 62. 5mm, standard length 40. 5 ~ 52. 5mm. All the type specimens were from Wengan County of Guizhou,China, ip October, 1991.Description D. iii - 8; anal, A. iii - 6; P. i- 9; v- i- 7; Branched of dorsal fin 16,Body depth in standard length, 5. 8 to 6. 7, and its depth 11 to 12. 8; length of snout in head length, 1. 4 to 2. 1; diameter of eye, 9. 5 to 12. 5 and width between eyes, 2. 2 to 3. 3; Depth of caudal peduncIe in its length, 1. 7 to 2. 9. Vertebrae, 4 + 38.Diagnosis This new subspecies resembles Schistura dabryi nanpanjiangensis Zhu et Cao, but the former has much smaller eyes (the diameter of its eye in head 10 to 13) and the starting point of its ventral fin is opposite to the base of the third or the fourth branched ray of dorsal fin, While the latter has much bigger eyes, and the starting point of ventral fin is opposite to that of dorsal fin or to its firstbranched ray.All the type specimens mentioned above were kept respectively in the Institute of Hydrology, the Chinese Academy of Sciences and the Department of Biology,Zunyi Medical College.
出处
《合肥医学院学报》
1997年第2期4-7,共4页
Journal of Zunyi Medical University
关键词
鳅科
南鳅属
新种
新亚种
Cobitidae, Schistura, New species, New subspecies
