Revision of Aberranta Hartman, 1965 (Aberrantidae: Annelida), with descriptions of new species from the Mediterranean and Hong Kong

摘要

Two new species of Aberranta Hartman, 1965 are described from southeast France and Hong Kong, China. The two previously known species, A. enigmati-ca Hartman, 1965 and A. palpata Wolf, 1987 are redescribed from type and other material. Aberranta banyulensis n. sp. resembles A. palpata, and its internal and external morphology are examined further using histological, transmission and scanning electron microscopic techniques. Aberranta sulcata n. sp. is morphologically closest to A. enigmatica. The relationships between Aberranta and other polychaetes are discussed in light of a recent morphological and molecular analysis involving Nerillidae and Aciculata. The relationships among the Aberranta species are examined in a morphology-based cladistic analysis, using an amphinomid and three nerillids as outgroups.