Phylogeny of the Aplysiidae (Gastropoda, Opisthobranchia) with new aspects of the evolution of seahares
Abstract: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 The traditional classification of Longicommissurata (Aplysiinae + Dolabellinae) is no longer valid since the Longicommissurata are paraphyletic.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.
Document Type: Research Article
Publication date: September 1, 2004