New Hesionidae (Annelida) from Japan: Unavailable Names Introduced by Uchida (2004) Revisited, with Reestablishment of their Availability

Abstract

In 2004, Uchida published a partial revision of the family Hesionidae in Japan, where four new genera were proposed and 13 species newly described. However, both the holotype fixations and their depository numbers were omitted in the original article, rendering the names unavailable after Article 16.4 of the International Code of Zoological Nomenclature. In this work, the names are made available by clarifying the depository of the types. We provide diagnoses for the four new genera (Synsyllidia Uchida, Uncopodarke Uchida, Parahesiocaeca Uchida, and Ichthyohesione Uchida) and 13 new species (Synsyllidia alternata Uchida, Oxydromus brevipodius Uchida, O. bunbuku Uchida, O. constrictus Uchida, O. fauveli Uchida, O. longifundus Uchida, O. okudai Uchida, O. parapallidus Uchida, Heteropodarke kiiensis Uchida, Uncopodarke intermedia Uchida, Microphthalmus itoi Uchida, Parahesiocaeca japonica Uchida, and Ichthyohesione gorgasiae Uchida). A key to species of Hesionidae recorded to date from Japan is also presented.