Revalidation of Caridina natalensis De Man, 1908 (Crustacea: Decapoda: Atyidae) in the South Western Indian Ocean

Valentin de Mazancourt (1) , Magalie Castelin (1, 2) , Clementine Renneville (1) , Musa Mlambo (3) , Gerard Marquet (1) , Philippe Keith (1)

1 BOREA - Biologie des Organismes et Ecosystèmes Aquatiques
2 ISYEB - Institut de Systématique, Evolution, Biodiversité
3 Rhodes University, Grahamstown

Numerous specimens of a freshwater shrimp with small eggs belonging to the Caridina nilotica complex collected in the South Western Indian Ocean were studied and compared with recent and old collection specimens genetically (16S mitochondrial analysis for recent and type specimens) and morphologically. The results revealed that, in the Indian Ocean, what has been identified by several authors under various species names of the complex C. nilotica, was in fact C. natalensis De Man, 1908. This valid species is re-described and compared with closely related species, often confused with it in this area: C. brachydactyla De Man, 1908, C. brevidactyla Roux, 1920, C. gracilipes De Man, 1892 and C. longirostris H. Milne Edwards, 1837

Mots clés: Caridina; Integrative taxonomy; 16S; Morphology; South Africa; Seychelles; Comoros; Madagascar; Mayotte

Domaines: Zoologie des invertébrés; Systématique, phylogénie et taxonomie

Valentin de Mazancourt, Magalie Castelin, Clementine Renneville, Musa Mlambo, Gerard Marquet, et al.. Revalidation of Caridina natalensis De Man, 1908 (Crustacea: Decapoda: Atyidae) in the South Western Indian Ocean. Zootaxa, 2019, 4543 (3), pp.375-387. ⟨10.11646/ZOOTAXA.4543.3.3⟩. ⟨hal-03635547⟩