Vol. 64, 2025

Kuayguara etymatee sp nov., a New Genus and Species of Artotrogidae (Copepoda: Siphonostomatoida) with an Uncommonly Atrophied Leg 1

Amilcar Farias^1,*, Elizabeth G. Neves¹, and Rodrigo Johnsson¹

¹Universidade Federal da Bahia, Instituto de Biologia, LABIMAR – Crustacea, Cnidaria e fauna associada. Avenida Milton Santos, s/n, Campus Ondina, Bahia, Brazil. *Correspondence: E-mail: amilcaar@gmail.com (Farias)
E-mail: elizabethneves@gmail.com (Neves); rjohnsson@gmail.com (Johnsson)

(Received 22 September 2024 / Accepted 14 February 2025 / Published 13 May 2025)
Communicated by Daniel Stec

Artotrogidae Brady, 1880 is a cosmopolitan family with 23 valid genera and 131 known species. However, a considerable number of these species were subject of reexaminations and redescriptions recently. With the crescent number of new species discovered, it is becoming possible to better understand their boundaries. This study presents a new genus and species of Artotrogidae, recovered from unidentifiedhosts in debris of benthonic samples from Todos-os-Santos Bay, northeastern coast of Brazil. Kuayguara etymatee gen. et sp. nov. exhibits an underdeveloped first leg, which possess an unsegmented protopod and 1-segmented exopod, a unique set of morphological characteristics that differentiates it from all other genera of the family.

Key words: Invertebrate associate, Symbiotic copepods, Systematics, Uncommon leg, Taxonomy

Citation: Farias A, Neves EG, Johnsson R. 2025. Kuayguara etymatee sp nov., a new genus and species of Artotrogidae (Copepoda: Siphonostomatoida) with an uncommonly atrophied leg 1. Zool Stud 64:10. doi:10.6620/ZS.2025.64-10.