Zoological Studies

Vol. 59, 2020

(update: 2020.06.03)

Kristianides, A New Genus of Scale Worms from the Northern Gulf of Mexico and New Records of Phyllohartmania taylori (Annelida: Polychaeta: Polynoidae)

Patricia Salazar-Silva


Tecnológico Nacional de México, Instituto Tecnológico de Bahía de Banderas, Laboratorio de Zoología Marina, Bahía de Banderas, Nayarit, México. E-mail: salazarsilva01@yahoo.com, patricia.ss@bahia.tecnm.mx

(Received 26 February 2019 / Accepted 29 May 2020)
Communicated by Benny K.K. Chan

Patricia Salazar-Silva (2020) Phyllohartmania Pettibone, 1961 is a monotypic genus belonging to the subfamily Polynoinae Kinberg, 1856. It is characterized by having lateral antennae with ventral ceratophores, cephalic peaks and neuropodia with pre-chaetal lobes being longer than post-chaetal lobes. Phyllohartmania taylori Pettibone, 1961 was described using only one specimen collected at Bird Point, Seahorse Key, Florida. During a study of Polynoids from the Grand Caribbean to corroborate features and record, the holotype and additional material of P. taylori housed at the National Museum of Natural History, Smithsonian Institution were examined and unknown genus of Eulagiscinae Pettibone, 1997 confused with Phyllohartmania was found, here is erected as a new genus. Kristianides gen. nov. is distinguished by having prostomium without cephalic peaks, lateral antennae inserted terminally on indistinct ceratophores and notopodia and neuropodia with projecting acicular lobes well developed. Kristianides cylindricum sp. nov. differs from the other species of Eulagiscinae by having ventral lamellae; 15 pair of elytra with fringe of papillae, surface with sclerotized microtubercles and macrotubercles; being conical the microtubercles and cylindrical the macrotubercles. In addition two records of P. taylori for the northern Gulf of Mexico herein are published, is provided a taxonomic key to differentiate Kristianides gen. nov. from its congeners in Eulagiscinae and is increased the species with ventral lamellae, a convergent feature.

Key words: Eulagiscinae, Polynoinae, Convergent features, Worms, Mississippi Sound, Elytra.

Citation: Salazar-Silva P. 2020. Kristianides, a new genus of scale worms from the northern Gulf of Mexico and new records of Phyllohartmania taylori (Annelida: Polychaeta: Polynoidae). Zool Stud 59:0cc. doi:-.