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Phylogenetic Relationships of the Genus Aegla (Decapoda: Anomura: Aeglidae), with Comments on Anomuran Phylogeny

Joel W. Martin and Lawrence G. Abele
Journal of Crustacean Biology
Vol. 6, No. 3 (Aug., 1986), pp. 576-616
Published by: on behalf of The Crustacean Society
DOI: 10.2307/1548195
Stable URL: http://www.jstor.org/stable/1548195
Page Count: 41
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Phylogenetic Relationships of the Genus Aegla (Decapoda: Anomura: Aeglidae), with Comments on Anomuran Phylogeny
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Abstract

Anomuran decapods in the family Aeglidae are ecologically and morphologically distinct from other members of the Galatheoidea (Galatheidae, Chirostylidae, Porcellanidae). Among the morphological characters distinguishing aeglids from other galatheoids are several characters seen in the hermit crab families (Paguroidea). The hypothesis that aeglids are members of the Paguroidea rather than the Galatheoidea was tested using numerical phenetic and cladistic methods. Fifty-four morphological and ecological characters were scored for all families that are now or have been previously included among the Anomura. Aeglids are shown to be primitive members of the Galatheoidea, in accordance with traditional classifications of the Anomura, although other traditional groupings within the Anomura are questioned. A proposed hypothesis of anomuran phylogeny separates thalassinoids from Anomura sensu stricto, places aeglids with other galatheoids, and removes lithodids and Lomis from the paguroid line. The need for increased and improved basic morphological monographs of decapod families is stressed.

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