Phenetic and Biogeographic Relationships in Ophelia (Polychaeta, Opheliidea)
Abstract:This paper attempts to determine the phenetic and biogeographic relationships of species of Ophelia. The genus is represented by 32 species, including four abranchiate species. Most of the species live on clean fine or medium sand communities in the infralittoral zone and have a restricted biogeographical distribution. The largest number of Ophelia species (25 species) live in the Atlantic Ocean. Eight main groups are identified by the phenetic analysis. Each group is distinguished by a set of morphological characters and certain range of geographical distribution. The results allow us to advance a hypothesis that Ophelia originated in the southern part of the Atlantic Ocean.
Document Type: Research Article
Publication date: 1991-03-01
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