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Phylogeny of the Aplysiidae (Gastropoda, Opisthobranchia) with new aspects of the evolution of seahares

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Klussmann-Kolb, A. (2004). Phylogeny of the Aplysiidae (Gastropoda, Opisthobranchia) with new aspects of the evolution of seahares. —Zoologica Scripta, 33, 439 – 462.

The phylogeny of the Aplysiidae is investigated, based on 37 morphological and histological characters polarized a priori by outgroup comparison. The Aplysiidae represents a monophyletic taxon comprising two distinct clades: Aplysiinae and Dolabellinae + Dolabriferinae + Notarchinae. The traditional classification of Longicommissurata (Aplysiinae + Dolabellinae) is no longer valid since the Longicommissurata are paraphyletic. However, the Brevicommissurata (Dolabriferinae + Notarchinae) form a monophyletic group. Within the Dolabriferinae two sister-groups can be distinguished: Dolabrifera and Phyllaplysia+Petalifera petalifera. The genus Petalifera is paraphyletic. Based on the present phylogeny, several aspects of the evolution of the Aplysiidae are discussed.
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Document Type: Research Article

Publication date: 2004-09-01

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