Family Revision and Cladistic Analysis of the Nereidoidea (Polychaeta : Phyllodocida)

摘要: A family revision and cladistic analysis of the superfamily Nereidoidea sensu George Hartmann - Schroder, 1985 (Polychaeta : Phyllodocida) based on internal external morphological characters is presented. The superfamily, presently lacking synapomorphies, contains Antonbruunidae, Calamyzidae, Hesionidae, Levidoridae, Nautiliniellidae, Nereididae, Pilargidae Syllidae. Three synapomorphies are proposed: anterior or, rarely, anteroventral palps; paired pharyngeal retractor muscles; presence metanephromixia. On basis this definition, Chrysopetalidae moved to Nereidoidea. requirement for ingroup monophyly necessitated synonymising Antonbruunidae with Pilargidae, Calamyzidae Levidoridae Nautiliniellidae redefined. using 15 (21 apomorphic character states) 3 outgroups (Aphroditidae, Polynoidae, Sigalionidae) produced minimum-length cladograms each 29 steps consistency index 0.72. showed consist 2 monophyletic groups: Nereididae (Chrysopetalidae Hesionidae) topology latter group was variable; one cladogram had as sister-group Syllidae, another Syllidae Pilargidae. Evolutionary scenarios multistate given, phylogenetic relationships taxa discussed.