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

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概要

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• 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.

• 日本動物分類学会の論文
• 2001-08-31

著者

• Itoh Tetsuya

  Division Of Biological Sciences Graduate School Of Science Hokkaido University

• Itoh Tesuya

  Division of Biological Sciences, Graduate School of Science, Hokkaido University

関連論文

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

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