Ann. Limnol. - Int. J. Lim.
Volume 43, Number 4, 2007
|Page(s)||271 - 284|
|Published online||15 January 2009|
Limb morphology of the carnivorous anomopods Anchistropus emarginatus Sars, 1862 and Pseudochydorus globosus (Baird, 1843) (Crustacea: Branchiopoda: Anomopoda)
Limnology Research Group, Department of Biology, Ghent University, K.L. Ledeganckstr. 35, B-9000 Ghent, Belgium.
Corresponding author: email@example.com
We studied the morphology of two ‘flesh-eating’ Chydoridae Anchistropus emarginatus Sars, 1862 and Pseudochydorus globosus (Baird, 1830), using populations from Belgium, with particular attention to the structure of the trunk limbs. Both genera belong in subfamily Chydorinae, and both have morphological adaptations with implications for the interpretation of limb morphology in the subfamily. Anchistropus has a large number of specific characters, many of which directly relate to the animal’s habit of feeding on Hydra. In Pseudochydorus globosus, specializations are less numerous. A redescription of both species is offered, with an aim at allowing future comparisons with populations outside the Palaearctic, where cryptic species are expected to occur.
Key words: Anchistropus emarginatus / Pseudochydorus globosus / Chydorinae evolution / morphology / trunk limbs
© Université Paul Sabatier, 2007
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