摘要
描记采于贵州省荔波县茂兰自然保护区范围内一地下河中的金线属一新种 ,以采集地县名命名荔波金线Sinocyclocheilusliboensis.sp .nov。新种外形与广西凌云金线相似 ,但前者鳃耙少 ,仅 4— 5 ,后者 9— 10 ;前者眼间距较窄 ,头长为眼间距的 3.4～ 3.6倍 ,后者 2 .4～ 3.0 (2 .8)倍 ;前者尾柄较细 ,尾柄长为尾柄高的 1.8倍 ,后者 1.3～ 1.6 (1.4 6 )倍 ;前者侧线鳞与体鳞一致 ,侧线上下鳞分别为 2 8— 30和 16— 18,后者侧线鳞大于体鳞 ,侧线上下鳞为 14— 17和 8— 11。
A new species named Sinocyclocheilus liboensis Li, Chen et Ran, sp.nov,(fig1) was described.Holotype No 9505001, total length 171 mm, standard length 135 mm, was collected in May, 1995 from cave in Wenggen of Libo County(108°02′E,25°15′N, altitude 520 mm) in Guizhou Province. Paratype 1 speciments No 9505002, total length 171 mm, standard length 132 mm, was collected with the holotype. Description: D,iii,7;A,ii,5;P,i,15;V,i,8; Branched caudal fin rays 15-17,Lateral line scales 7328-3016-18-v78; Gill-rakers 4-5; Pharyngeal teeth 3 rows, 2 3 4/4 3 2. Body depth in standard length 2.70-3.10, head length 3.65-3.67, length of caudal peduncle 4.10-4.60, depth of caudal peduncle 7.50-820, Snout in head 2.57-2.64, eye 9.01-9.13, interobrital 3.41-3.60. Depth of caudal peduncle 1.80 in its length. Diagnosis: The new species is similar to S. lingyunensis Li et al 2000, but differs from the latter in: (1) The number of lateral line scales equals that of body scales; Vs lateral scales>body scales;(2)Gill-rakers 4-5; Vs 9-10; (3) Interorbital in head 3.4-3.6; Vs 2.4-3.0(2.8); (4) Depth of candal peduncle 1.80 in its length; Vs 1.30-1.60(1.46); (5) River of Liujiang; Vs River of Youjiang. All specimens are kept in Heilongtan Reservoir of Shilin County, Yunnan Province.
出处
《湛江海洋大学学报》
2004年第3期1-3,共3页
Journal of Zhanjiang Ocean University
关键词
鲤科鱼类
新种
金线鲃属
贵州
Cyprinidae
New species
Sinocyclocheilus
Guizhou province,China
