中国鮡属鱼类二新种记述(鲇形目:鮡科)

本文报道在四川西部收集的鮡科鱼类标本中,发现有鮡属(Pareuchiloglanis)的壮体鮡,新种P.robusta sp.nov.和四川鮡,新种P.sichuanensis sp.nov.,对二新种的形态特征作了详细描述,并与相近种的主要性状列表进行比较。

TWO NEW SPECIES OF THE GENUS PAREUCHILOGLANIS FROM CHINA (SILURIFORMES: SISORIDAE)

The paper presents two new species of the genus Pareuchilaglanis, collected from Sichuan Province, China. The specimens are kept in Sichuan Provincial Natural Resources Institute, Kunming Institute of Zoology, Academia Sinica and Sichuan Agricultural University.1. Pareuchiloglanis robusta sp. nov.(fig. 1)Holotype No. 8801, male, total length 162mm, body length 139 mm, collected from a stream (Qing Yijiang), SichuanProvince, in June 1988. Allotype No. 8804, female, total length 165 mm, body length 145 mm, collected from the same locality as the holotype. Paratypes 23 specimens, No. 6-0466,. 6-1297-8, 6-1506-7, 0098-102, collected from the Ya an County, Sichuan Province, 8802-3, 8812-25, collected from the same locality as the holotype. Its total length 155-197mm, body length 134-170mm.D. i-5--6; P. i-14-15; V. i-5; A. i-4-5; C. i-15-16-i. Gill-rakers on the inner rowof the first gill arch 6-7. vertebrate 5+32-33 (four specimens).Diagnosis This new species is closely allied to P. anteanolis Fang, Xu et Cui and P. sin-ensis (Hora et Silas), but with striking morphologically differences from the latter as shown in the Table 1.2. Pareuchiloglanis sichuanensis sp. nov. (fig. 2)Holotype No. 6-1481, male total length 130mm, body length 106mm, collected from Bao-xing, Sichuan Province, in June 1986. Allotype No. 840561, female, total length 163 mm, body length 135 mm, collected from Maoxian County, Sichuan Province, in June 1984. Paratypes 16 specimens, No. 6-1488-91. 850150, collected from the same locality as the holotype; 840562-572, collected from the same locality as the allotype, their total length 126-163 mm, body length 115-140 mm.D. i-6; P. i-13-14; V. i-5; A. i-4-5; C. i-14-15-i; Gill-rakers on the inner row of the first gill arch 4-5; vertebrate 5+30-31 (four specimens).Diagnosis The new species is similar to P. kamengensis (Jayaram) and P. anteanalis Fang, Xu et Cui, but with striking morphological differences as given in Table 2.