Macrobrachium brasiliense Heller, 1862

Examined material. Municipality of Ferreira Gomes: dam at km 54, Extremo Norte (00°28’60”N, 51°04’59”W), 06.vi.2002, coll. I.M. Vieira, 06 males and 18 females (IEPA 333) ; Floresta Nacional do Amapá (Amapá National Forest,) Stream Braço (01°18’07”N; 51°35’17”W), 24.vii.2004, coll. I.M. Vieira, 01 male and 15 females (IEPA 537) ; idem, 08.viii.2004, I.M. Vieira, 04 males and 30 females (IEPA 551); idem, 11.viii.2004, coll. I.M. Vieira, 15 specimens (IEPA 559); idem, 11.viii.2004, I.M. Vieira, 02 females (IEPA 564); 14.viii.2004, colls. M. Vieira and J.O. Cardoso, 02 male and 01 female (IEPA 610); Floresta Nacional do Amapá, Stream Santo Antônio, pond in açaí occurrence area ( Euterpe oleracea Mart.) (01°06’37”N, 51°53’37”W), 07.iii.2005, colls. I.M. Vieira and D.C.C. Vieira, 01 male (IEPA 780) ; idem, 22.vii.2002, colls. I.M. Vieira and D.C.C. Vieira, 59 males, 03 females and 01e female with eggs (IEPA 787); 13.iii.2005, colls. I.M. Vieira and D.C.C. Vieira, 13 males and 03 females (IEPA 793), stream with transparent water, bottom with sand and small black stones, with strong current (1°06’39”N, 51°53’18”W) 07.iii.2005, I.M. Vieira and D.C.C. Vieira, 05 males (IEPA 800) .— Municipality of Laranjal do Jari: Sustainable Development Reserve of the Iratapuru River, Jari River (00°16’35.21”N, 53°06’24.48”W), 12.xi.2004, I.M. Vieira and E.A. Oliveira, 72 males and 10 females (IEPA 580) ; stream left bank of the Jari River (00°16’35.21”N, 53°06’24.48”W), 21.xi.2004, I.M. Vieira and E.A. Oliveira, 5 males and 4 females (IEPA 620) ; idem, 15.xi.2004, I.M. Vieira and, 03 males, 12 females and 1 juvenile (IEPA 1065); right bank of the river Jari (0°51’47”S, 52°31’26”W), 27.x.2007, I.M. Vieira, 31 males and 11 females (IEPA 1169) ; stream Baliza (0°18’36”S, 52°26’24”W), 12.v.2005, I.M. Vieira and D.C.C. Vieira, 1 male (IEPA 1272) ; idem, 10.v.2005, I.M. Vieira and D.C.C. Vieira, 1 female (IEPA 1325); National Park of Tumucumaque Mountains, Mapaoni River, transparent water, under leaf litter bordering the river (02°11’36”N, 54°35’15”W), 11.i.2005, I.M. Vieira and E.A. Oliveira, 1 male (IEPA 712) ; idem, 05.i.2005, I.M. Vieira and E.A. Oliveira, 7 males, 03 females, 04 juvenis and 2 females with eggs (IEPA 1187) . Municipality of Serra do Navio: National Park of Tumucumaque Mountains, confluence of rivers Amapari and Anacuí, with small waterfalls, rocks on the river bed, strong current (01°35’45”N, 52°29’32”W), idem previous collection, 22.ix.2004, I.M. Vieira and Z. A. de Paiva, 1 male and 1 female (IEPA 657) ; idem, Stream with rocky bottom (1°36’13”N, 52°29’52”W), 17.ix.2004, I.M. Vieira, C.S. Gama, D. R. J. Cardoso and J. M. Pereira, 05 males, 05 females and 01 female with eggs (IEPA 664) ; idem, stream tributary of Amapari River, black water, sandy bottom, shallow and with leaves in decomposition (1°36’13”N, 52°29’36”W), 20.ix.2004, I.M. Vieira and E.A. Oliveira, 3 males and 6 females (IEPA 684) ; idem, igarapé (1°35’43”N, 52°29’18”W), 24.ix.2004, I.M. Vieira and E.A. Oliveira, 1 male and 4 females (IEPA686), Anacuí River (01°50’41.29”N, 52°44’28.65”W), 02.iii.2006, I.M. Vieira and D.C.C. Vieira, 9 males (IEPA1039) .— Municipality of Pedra Branca do Amapari: stream (01°08’53.6”N, 52°26’43.7”W), 01.ix.2002, I.M. Vieira, 5 males, 13 females, 31 juveniles (IEPA 828) ; Sustainable Development Reserve of the Iratapuru River, tributary of Cupixi River, swamp (0°34’09”N, 52°19’30”W), 29.vii.2005, I.M. Vieira and D.C.C.Vieira, 1female (IEPA 899) , idem, 02.viii.2005, I.M. Vieira and D.C.C. Vieira, 1female (IEPA 914); Cupixi River (00º34’45”N, 52º19’21”W), 01.viii.2005, I.M. Vieira and D.C.C. Vieira, 1male (IEPA 905) ; tributary stream of the Cupixi River (0º35’00”N, 52º19’28”W), 6.viii.2005, I.M. Vieira and D.C.C. Vieira, 1 female (IEPA 936) .— Municipality of Oiapoque: National Park of Tumucumaque Mountains, Anotaié River (3°07’27”N, 52°01’28”W), 5.ix.200 5, I.M. Vieira and D.C.C. Vieira, 12 males and 17 females (IEPA 943) ; tributary of the Anotaié River, 5000 m trail (3°12’47”N, 52°02’22”W), 9.ix.2005, I.M. Vieira and D.C.C. Vieira, 3 males and 9 females (IEPA 949); (3°29’ 09”N 52°19’14”W), 12.ix.2005, I.M. Vieira and D.C.C. Vieira, 1 male and 12 females (IEPA 954); Anotaíé River (l°29’51,55”N, 52°18’0,66”W), 13.ix.2005, I.M. Vieira and D.C.C. Vieira, 1 male (IEPA 955) ; idem, 13.ix.2005, I.M. Vieira and D.C.C. Vieira, 1 male (IEPA 956); idem, 13.ix.2005, I.M. Vieira and D.C.C. Vieira, 1 male (IEPA 958) .— Municipality of Calçoene: National Park of Tumucumaque Mountains, Mutum River (1°23’13.83”N, 51°55’39.05”W), 6.xi.2005, I.M. Vieira and D.C.C. Vieira, 5 males and 23 females (IEPA 1010) ; Mutum River (1°23’13,83”N, 51°55’39,05”W), 2.xi.2005, I.M. Vieira and D.C.C. Vieira, 6 males and 11 females (IEPA 1025) ; tributary of Mutum River, left margin (1°23’51”N, 51°56’04”W) 6.xi.2005, I.M. Vieira and D.C.C. Vieira, 1 specimen (IEPA 1055) ; tributary stream of the Mutum River (1°23’51”N, 51°56’04”W), 2 males and 3 females (IEPA 1072) .— Municipality of Mazagão: Extractive reserve of Rio Cajari, Stream Caroço (00°23’21.8”S, 52°03’13.7”W), 7.vii.2013, I.M. Vieira, 4 males, 1 females and 1 female with eggs (IEPA 1634) ; Araguari River, Marcirio upstream of Porto Grande, 18.viii.1992, colls. C. Magalhães and M. Jeju (INPA-CRU 001070) ; BR- 156 furo do Henrique, 27.viii.1992, coll. C. Magalhães (INPA-CRU 001072) ; Araguari River, stream in waterfall Capivara, 20.viii.1992, coll. C. Magalhães (INPA-CRU 001074) ; rio Amapá Grande, 26.viii.1992 (INPA-CRU 001076) ; Streamigarapé Munguba, 23.iii.1991 (INPA-CRU 001207) ; municipality of Serra do Navio, Stream Água Branca, 22.iii.1991 (INPA-CRU 001211) (Figure 4).

Geographic distribution. Colombia, Venezuela, Ecuador, Peru, Suriname, Guyana, French Guyana and Brazil (states of Amapá, Pará, Amazonas, Maranhão, Bahia, Mato Grosso, Mato Grosso do Sul, Goiás, Minas Gerais, Roraima, São Paulo and Paraná). (Holthuis 1952; Pileggi et al. 2013; Pimentel & Magalhães 2014)

Distribution in Amapá state. Streams Braço, Água Branca, Munguba and Santo Antônio, rivers Jari, Araguari, Mapaoni, Amapari, Anacuí, Cupixi, Anotaié, Mutum, Amapá Grande, Davi and Tracajatuba.

Previous records. Melo (2003); Pimentel & Magalhães (2014).

Ecological notes. In the state of Amapá, it occurs in clear, transparent waters, in ponds, streams and rivers with waterfalls where there is strong current.

Remarks. The morphology of the specimens can be verified in Holthuis (1952); Melo (2003).