摘要
本文报道１９８０年６月采自江苏省吴江县的鲤科鱼类一新种，小口小鳔Ｍｉｃｒｃｏ－ｐｈｙｓｏｇｏｂｉｏｍｉｃｒｏｓｔｏｍｕｓｓｐ．ｎｏｖ．新种的口唇和鳔囊结构等性状与凌河小鳔Ｍ．ｌｉｎｇｈｅｎｓｉｓＸｉｅ相近似，而又以其口唇的发达程度、胸腹部裸露区的大小和位置、尾柄长与高之比以及体色斑纹的差异等与后者相区别。
Microphysogobio microstomus sp.nov.(fig.1)Holotype No.80 Ⅵ 1720, total length 75 mm, body,length 62 mm, collected from Wujiang County, Jiangsu Province, in June 1980. Paratypes 16 specimens, No. 80 Ⅵ 1719, 80 Ⅵ 1721-1735, total 1ength 57-74 mm,body length 46-61 mm, the locality and time same as the holotype.D. iii-7; A.ii-6;P.i-10-11;V.i-7. L. S. circumpeduncular scales 12.Gill rakers on the first arch 4-5. Pharyngeal teeth 5-5. Vertebrate counts 4+31-32.Depth 4.7-5.5 in body length; head 4. 3-5. 2; length of caudal peduncle 5. 8-6. 7;depth of caudal peduncle 9.8-11.0. Snout 2. 8-3. 0 in head length; eye diameter 3. 2- 3. 7;interorbital space 3.6-4.5.,Depth of caudal peduncle 1. 6-1. 8 in its length.Diagnosis This new species is similar to the species M. linghensis Xie, but characteristic of the following that: 1)smaller mouth and thiner lips; 2) belly-breast naked area just restricted before pectoral fin; 3) depth of caudal peduncle 1. 6-1. 8 in its length (not 1.2-1.5);4) presence of a narrow greyblackish longitudinal band on body side.
出处
《动物分类学报》
CSCD
1995年第4期495-498,共4页
Acta Zootaxonomica Sinica
