摘要
利用320尾标本进行了可量性状、可数性状的研究，发现各龄组雌鱼的可量性状及头长／眼径的平均值比雄鱼大．且头长／眼径随龄组值增大而增大．弥补了前人对外部形态特征描述的不足．扩大了前人研究的性状范围．
320 speciments were used to study measurable and numberable characters. Com-pared the average of measurable characters and head length: eye diametre ratio, the female's is larger than the male's in all age classes, with the aterage head length: eye diametre ratio inerease with the increaslng age class. Complernented the missing description of external morphological characters and widened the characteristic range of this study.
出处
《怀化师专学报》
1997年第6期62-66,共5页
Journal of Huaihua Teachers College
关键词
可量性状
外部形态
雌鱼
利用
特征描述
标本
平均值
发现
Tor brevifilis brevifilis
external morphological characters
characteristic variation
