中国麦穗鱼属一新种(鲤形目,鲤科)  

A NEW SPECIES OF THE GENUS PSEUDORASBORA FROM GUANGDONG PROVINCE,CHINA (CYPRINIFORMES,CYPRINIDAE)

作　　者：肖智[1] 蓝宗辉[2] 陈湘粦[1] 

机构地区：[1]华南师范大学生命科学学院,广东广州510631 [2]韩山师范学院生物系,广东潮州515000

出　　处：《动物分类学报》2007年第4期977-980,共4页Acta Zootaxonomica Sinica

摘　　要：作者于2001年在广东省潮州市凤凰山天池采到鲤科鱼类8尾,经鉴定为1新种,定名为断线麦穗鱼Pseudorasbora interrupta sp.nov.。新种口上位、无口须,归入麦穗鱼属。新种与同属的麦穗鱼Pseudorasbora parva（Temmincket Schlegel）相似,但有如下鉴别特征：侧线不完全,侧线鳞仅7-15枚;体较低,不及头长;上颌骨侧突和下颌骨冠状突较不发达。Pseudorasbora interrupta sp.nov.is described on 8 specimens collected from the top lake of Fenghuang Mountain（23°55＇N,116°36＇E）,Chaozhou City,Guangdong Province,China in 2001.The new species belong to the genus Pseudorasbora since its mouth is oblique and without barbel on jaws.It closely resembles P.parva（Temminck et Schlegel）distributed in east Asia,but differs from latter as follows：an incomplete lateral line scales,a lower body depth which is always shorter than head length and a weak lateral process of maxilla bone.Meanwhile,it also resembles P.pumila distributed in Japan with incomplete lateral line scales,but differs from the latter in the number of lateral line scales with 7-15 vs.3-5.Holotype No.01VI1001,total length 67.0mm,standard length 55.0mm,Paratypes No.01VI1002-01VI1008,total length 30.5-42.2mm,standard length 26.0-36.8mm.All type specimens are deposited in Fish Collection Room,College of Life Science,South China Normal University,Guangzhou,China.The total length of the new species is 30.5-67.0mm,and the standard length 26.0-55.0mm.D ii-7;P i-15;V i-8;A iii-6.Gill rakers on outer of the first arch 7,lower pharyngeal teeth 1 row 5/5.Lateral line incomplete,lateral line scales 7-15,and lateral row scales 35 6.5/5 36.Depth in standard length is 4.34-5.72（mean 5.0）,head 3.70-4.36（3.99）,caudal length 4.00-4.74（4.34）,and caudal depth 9.43-13.0（10.57）.Snout in head length is 3.32-4.58（3.95）,eye diameter 2.80-3.54（3.25）,interorbital space 2.52-3.04（2.71）.Caudal peduncle depth in caudal peduncle length 2.07-2.86.Body elongated and laterally compressed.The body depth is shorter than the head length,and the caudal depth is shorter than the head length after the eyes.The dorsal profile is a bit convex.Snout point,mouth oblique and superior,lower jaw located before upper jaw,no barbel on jaws.Nostrils just in front of eyes,nasal valves developed.Eyes large,its diameter is obviously longer than the snout length.The circular orbital bones degenerated into pole-like exc

关 键 词：鲤科 鮈亚科 麦穗鱼 新种 

分 类 号：Q959.468[生物学—动物学]