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Issue: Vol. 5759 No. 2: 16 Feb. 2026
Type: Article
Published: 2026-02-16
DOI: 10.11646/zootaxa.5759.2.6
Page range: 185-192
Abstract views: 53
PDF downloaded: 2

A further novel species of Macrobrachium from Brazil (Decapoda, Palaemonidae), lacking a mandibular palp

Grupo de Pesquisa em Carcinologia e Biodiversidade Aquática (GPCBio); Centro de Formação em Ciências Agroflorestais (CFCAf); Universidade Federal do Sul da Bahia (UFSB). Rodovia. Ilhéus-Itabuna; km 22. CEP 45662-200. Ilhéus - BA; Brasil.
Oxford University Museum of Natural History; Parks Road; Oxford OX1 3PW; UK.
Crustacea Freshwater shrimp Paraguay River basin Mato Grosso new species

Abstract

A new species of Macrobrachium from the Paraguay River basin, Brazil, is described. The new species is distinguished from most of its congeners by the absence of a mandibular palp. Morphologically, the new species is similar to M. bouvieri (Sollaud, 1911), with the presence of a postorbital rostral tooth, a straight rostrum, and the presence of a double row of setae without gaps over the teeth along the ventral margin of rostrum, separating it from that species, as well as the other eight species of Macrobrachium lacking a mandibular palp.

 

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How to Cite

Carvalho, F.L. & Grave, S.D. (2026) A further novel species of Macrobrachium from Brazil (Decapoda, Palaemonidae), lacking a mandibular palp. Zootaxa, 5759 (2), 185–192. https://doi.org/10.11646/zootaxa.5759.2.6