Macrobrachium pantanalense Dos Santos, Hayd & Anger, 2013

Jacobucci, Giuliano Buzá, Bueno, Alessandra A. De P., Almeida, Ariádine Cristine De, Alves, Douglas Fernandes Rodrigues, Barros-Alves, Samara De Paiva, Magalhães, Célio, Souza-Carvalho, Edvanda A., Mossolin, Emerson C., Carvalho, Fabrício Lopes & Mantelatto, Fernando L., 2023, Freshwater decapod crustaceans from the state of Minas Gerais, Brazil: species composition and distribution, Zootaxa 5375 (3), pp. 409-428 : 419-420

Macrobrachium pantanalense Dos Santos, Hayd & Anger, 2013

( Figs. 4E , 5 )

Material examined. Brazil, Minas Gerais: 95 spec. (6 ♀ ov.), LEEACC 0001, Nova Ponte , coll. A.C. Almeida, A.C.F. Porto & M.S. de Oliveira , VII.2015 – VI .2016; 5♂, 5♀, LEEACC 0034, Uberlândia , coll. A.C. Almeida & M.C. Cunha, VII–VIII.2017; 4♀, LEEACC 0033, represa de Miranda, rio Araguari, Uberlândia , coll. R. C. Silva & G.B. Jacobucci IV.2012 – V .2013; 1♀, LEEACC 0035, rio Araguari, Tupaciguara , coll. G.B. Jacobucci 03.II.2008; 2 spec., LEEACC 0036, rio Araguari , Uberlândia, coll. G.B. Jacobucci 10.VII.2009; 5 spec., LEEACC 0037, rio Araguari , Uberlândia, coll. G.B. Jacobucci 05.IX.2010; ♀ ov, CCDB 2641 , represa Miranda , Uberlândia, coll. H. Grande , 31.III.2009; 2♀., CCDB 2953 , Tupaciguara , coll. G.B. Jacobucci , 2006.

Distribution. Brazil (Mato Grosso do Sul, Minas Gerais, São Paulo) ( Vergamini et al. 2011; Santos et al. 2013; Weiss et al., 2015; Calixto-Cunha et al. 2021).

Previous records in Minas Gerais. The first record of the species in Minas Gerais by Calixto-Cunha et al. (2021) indicates that M. pantanalense has expanded its distribution outside the Pantanal region .

Remarks. The genetic distance and the haplotype diversity between M. pantanalense population from Pantanal and M. amazonicum population from the Amazon Delta obtained by Weiss et al. (2015) reinforce the hypothesis of these being distinct species. The reproductive isolation observed by Nogueira et al. (2020) appears to be another piece of evidence to support this hypothesis.

Figures

FIGURE 4. Caridean shrimps from the state of Minas Gerais, Brazil: A, Macrobrachium amazonicum (Heller, 1862); B, Macrobrachium brasiliense (Heller, 1862); C, Macrobrachium iheringi (Ortmann, 1897); D, Macrobrachium jelskii (Miers, 1877); E, Macrobrachium pantanalense Dos Santos, Hayd & Anger, 2013; F, Macrobrachium potiuna (Müller, 1880); G, Macrobrachium veredensis Rossi, Magalhães & Mantelatto, 2020. (Photos: A by D. F. R. Alves; B, D, E by V. T. Carrijo; C by L. G. Pileggi; F by F. L. Carvalho; G by G. B. Jacobucci). Scale bars: 10 mm.

FIGURE 5. Distribution map of caridean shrimps from the state of Minas Gerais, Brazil.