Morphological Variation in Japanese Populations of a Freshwater Leech, Helobdella stagnalis (Hirudinea : Rhynchobdellida : Glossiphoniidae)

  • Itoh Tetsuya
    Division of Biological Sciences, Graduate School of Science, Hokkaido University

この論文をさがす

抄録

The variations of internal and external morphology and body shape between and within three populations of Helobdella stagnates (Linnaeus, 1758) in northern Honshu, Japan, were examined. The results suggest that (1) the location of internal organs relative to the segmentation is not informative for Helobdella taxonomy, (2) body shape may be useful as a species-level taxonomic character for properly fixed specimens, and (3) a purportedly cosmopolitan species, H. stagnalis may need to be separated into more than one species with restricted distributional ranges.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (19)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ