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The phylogeny of box crab genera (Crustacea: Brachyura: Calappidae) with notes on their fossil record, biogeography and depth distribution

Published online by Cambridge University Press:  01 March 1998

Orpha Bellwood
Affiliation:
Department of Marine Biology, James Cook University, Townsville, Qld 4811, Australia
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Abstract

The phylogenetic relationships of eight genera within the Calappidae H. Milne Edwards, 1837 (Crustacea: Brachyura) were examined based on a cladistic analysis of 55 adult morphological characters. A single tree was produced (CI=0.833, RCI=0.717). The data revealed two major lineages within the Calappidae: the ‘calappine’ clade, consisting of Calappa, Cryptosoma, Cycloes, Paracyclois and Cyclozodion, and the ‘mursiine’ clade, consisting of Acanthocarpus, Mursia and Platymera. Analyses of the fossil record and biogeographic patterns point to vicariance events associated with Gondwanan fragmentation. Optimization of depth distributions on the cladogram suggests that the family had a deep-water origin with only a single lineage moving into shallow waters.

Type
Research Article
Copyright
© 1998 The Zoological Society of London

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