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

Two new species of Aberranta are described from southeast France and Hong Kong, China. The two previously known species, A. enigmatica and A. palpata 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.