Elisesione, a new name for Wesenbergia Hartman, 1955, and the description of a new species (Annelida, Hesionidae)

Abstract

Wesenbergia Hartman, 1955 (Annelida, Hesionidae) is both preoccupied and a junior homonym of Wesenbergia Kryger, 1943 (Hymenoptera, Pteromalidae), and must be renamed. Elisesione nom. n. is proposed as a replacement name, derived from the combination of the first name of the discoverer, Elise Wesenberg-Lund, and Hesione Savigny in Lamarck, 1818. Elisesione mezianei sp. n., is described from the Wallis and Futuna islands (southwest Pacific). A key to separate Elisesione mezianei sp. n. from its congener Elisesione problematica (Wesenberg-Lund, 1950) is included; further, the record of Elisesione problematica for Japan should be regarded as a distinct species because it has palps shorter than antennae (subequal in the type species), and shorter neurochaetal blades (7–9 times longer than wide vs 8–12 times longer than wide in the type species).

<i>Leocratides</i> (Annelida: Hesionidae) from the Pacific Coast of Middle Honshu, Japan, with a Description of <i>Leocratides kimuraorum</i> sp. nov.

“…Our specimens undoubtedly belong to Leocratides because their body consists of 21 segments, the anterior cirri are in eight pairs, the neurochaetae are bidentate, the palps are bi-articulated, the parapodia are uniramous, and the jaws are present, all agreeing with the generic diagnosis provided by previous researchers (Pettibone 1970;Pleijel 1998;Rizzo and Salazar-Vallejo 2014;Salazar-Vallejo 2016).…”