Diversity, distribution and new records of freshwater and estuarine shrimp in the state of Amapá, eastern Brazilian Amazon region Author Vieira, Inacia Maria 0000-0002-6911-0780 Programa de Pós-Graduação em Biodiversidade e Biotecnologia (BIONORTE), Universidade Federal do Amapá, Macapá, AP, Brasil. Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá - IEPA. & inaciavieira 2011 @ gmail. com; https: // orcid. org / 0000 - 0002 - 6911 - 0780 inaciavieira2011@gmail.com Author Silva, Luiz Maurício Abdon Programa de Pós-Graduação em Biodiversidade e Biotecnologia (BIONORTE), Universidade Federal do Amapá, Macapá, AP, Brasil. Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá - IEPA. Author Almeida, Alini Gomes Santiago De 0000-0002-9773-489X alinigsantiago @ gmail. com; https: // orcid. org / 0000 - 0002 - 9773 - 489 X alinigsantiago@gmail.com Author Almeida, Danilo Pelaes De Programa de Pós-Graduação em Ciências Ambientais, Universidade Federal do Amapá, Macapá, AP, Brasil. Author Silva-Júnior, Orleno Marques 0000-0002-1173-1429 orlenomarques @ yahoo. com. br; https: // orcid. org / 0000 - 0002 - 1173 - 1429 orlenomarques@yahoo.com.br Author Tavares-Dias, Marcos Programa de Pós-Graduação em Biodiversidade e Biotecnologia (BIONORTE), Universidade Federal do Amapá, Macapá, AP, Brasil. Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá - IEPA. & Embrapa Amapá, Macapá, AP, Brasil. text Zootaxa 2022 2022-08-24 5178 1 41 71 journal article 129872 10.11646/zootaxa.5178.1.3 6329ab0a-3a78-4998-aae3-bf28b87876bb 1175-5326 7021864 4DECF608-22E1-4049-9271-F20E5E0ECB49 Euryrhynchus wrzesniowskii Miers, 1877 Examined material. Municipality of Ferreira Gomes : dam km 54, Far North ( 00°28’60”N , 51°04’59”W ), 04.vi.2002 , C.S. Gama , 1 female with eggs ( IEPA 324 ) ; at the same location as the previous collection ( 0°28’60”N , 51°04’59”W ), 06.vi.2002 , I.M. Vieira , 2 juveniles ( IEPA 327 ) ; Private Natural Heritage Reserve , stream in gallery forest, savannah, near Fazenda Aricari ( 00°59’31,8”N , 51°12’14,8”W ), 04.ix.2002 , I.M. Vieira , 1 female ( IEPA 557 ) ; idem, Stream ( 00°56’49.20”N , 51°14’49.71”W ), 31.i.2006 , I.M. Vieira and D.C.C. Vieira , 7 specimens ( IEPA 1672 ) ; 27.i.2006 , I.M. Vieira and D.C.C. Vieira , 1 specimen ( IEPA 1692 ) ; 29.i.2006 , I.M. Vieira and D.C.C. Vieira , 3 juveniles ( IEPA 1693 ) ; Floresta Nacional do Amapá , Stream Santo Antônio ( 1°06’37”N , 51°53’37”W ), 14.iii.2005 , I.M. Vieira and D.C.C. Vieira , 14 specimens ( IEPA 810 ) ; 05.iii.2005 , I.M. Vieira and D.C.C. Vieira , 1 male ( IEPA 842 ) ; 05.iii.2005 , I.M. Vieira and D.C.C. Vieira , 1 male ( IEPA 846 ) .— Municipality of Tartarugalzinho : Farm São Bento , Aporema River ( 01°16’54”N , 50°48’04”W ), 11.vi.2002 , I.M. Vieira , O.A. Alencar and O.M. Costa , 3 specimens ( IEPA443 ) .— Municipality of Macapá : Matapi settlement, tributary of the Matapi River ( 00°38’15.3”N , 51°26’05”W ), 03.ix.2002 , I.M. Vieira , C.S. Gama and D. A. Halboth , 5 males and 14 females ( IEPA 473 ) ; Environmental Protection Area of Curiaú River ( 00°08’44.16”N , 51°02’32.77”W ), 25.ix.2002 , I.M. Vieira , 7 specimens ( IEPA 474 ) ;— Municipality of Pedra Branca : National Park of Tumucumaque Mountains , Amapari River ( 1°35’45”N , 52°29’32”W ); 17.ix.2004 , I.M. Vieira , C.S. Gama , 4 males and 10 females ( IEPA 653 ) ; Stream of Anacuí River ( 01º50’41.29”N , 52º44’28.65”W ), 07.iii.2006 , I.M. Vieira , 2 males ( IEPA 1443 ) ; 08.iii.2006 , I.M. Vieira , 1 juvenile ( IEPA 1447 ) ; Sustainable Development Reserve of the Iratapuru River , Cupixi River ( 00°34’48”N , 52°19’17”W ), 05.viii.2005 , I.M. Vieira and D.C.C. Vieira , 20 specimens ( IEPA 844 ); ( 0°34’11”N , 52°18’28”W ) , 28.viii.2005 , I.M. Vieira and D.C.C. Vieira , 2 specimens ( IEPA 901 ) ; idem, entrance of a small stream, forming a pond, a lot of submerged litter ( 0°34’33”N , 52°18’59”W ), 06.viii.2005 , I.M. Vieira and D.C.C. Vieira , 3 specimens ( IEPA 935 ) ; stream left bank of the Cupixi River ( 0°34’11”N , 52°18’28”W ), 28.viii.2005 , I.M. Vieira and D.C.C. Vieira , 1 juvenile ( IEPA 1295 ) ; Stream ( 0°34’11”N , 52°18’28”W ),) 03.vii.2005 , I.M. Vieira and D.C.C. Vieira , 1 specimen ( IEPA 1352 ) .— Municipality of Serra do Navio : National Park of Tumucumaque Mountains , confluence of the Amapari and Anacuí River , stream ( 01°35’45”N , 52°29’32”W ), 22.ix.2004 , I.M. Vieira and E.A. Oliveira , 35 specimens ( IEPA 682 ) ; 19.ix.2004 , I.M. Vieira , D. R. J. Cardoso and J. M. Pereira , 15 specimens ( IEPA 685 ) .— Municipality of Pracuúba : Pracuúba Lake ( 01°40’27”N , 50°49’32”W ), 22.x.2004 , I.M. Vieira , 1 specimen ( IEPA 733 ) . Municipality of Oiapoque : National Park of Tumucumaque Mountains, Anotaié River ( 3º29’51.55”N , 52º18’0.66”W ), 14.ix.2004 , 3 specimens ( IEPA 945 ) ; tributary stream of Anotaié River ( 3°15’18”N , 52°01’15”W ), 07.ix.2005 , I. M. Vieira , 02 specimens ( IEPA 1263 ); ( 3º29’51.55”N , 52º18’0.66”W ) , 1 specimen ( IEPA 1214 ) ; 1 specimen ( IEPA 1224 ) .— Municipality of Calçoene : National Park of Tumucumaque Mountains , Mutum River ( 1º23’13.83”N , 51º55’39.05”W ), 06.xi.2005 , I.M. Vieira and D.C.C. Vieira , 01 female ( IEPA 1079 ) . Municipality of Laranjal do Jari : Jari River ( 00°51’36.20”S , 52°32’18.11”W ), 16.vii.2008 , I.M. Vieira and J.E.M. Wanzeler , 5 specimens ( IEPA1202 ) ; Sustainable Development Reserve of the Iratapuru River , Stream Baliza (0°18’36’”S, 52°26’24”W), 09.v.2005 , I.M. Vieira and D.C.C. Vieira , 3 females with eggs ( IEPA 1338 ) , 10.v.2005 , I.M. Vieira and D.C.C. Vieira , 3 specimens ( IEPA 1340 ) ; Jari River ( 00°16’35.21”N , 53°06’24.48”W ), 06.xi.2004 , I.M. Vieira and E.A. Oliveira 3 females ( IEPA 567 ) ; 18.xi.2004 , I.M. Vieira and E.A. Oliveira 8 males and 5 females ( IEPA 1474 ) ; Jari River ( 0°51’17”S , 52°32’53”W ), 16.viii.2008 , I.M. Vieira , 7 specimens ( IEPA1479 ) ; Stream Riacho Doce ( 00°47’54.85”S , 52°31’49.65”W ), 25.v.2007 , I.M. Vieira and E.F. Araújo , 3 specimens ( IEPA 1366 ) ; Stream Riacho Doce ( 00°47’54.85”S , 52°31’49.65”W ), 17.vi.2010 , I.M. Vieira and E.F. Araújo , 1 specimen ( IEPA 1416 ) ; 1 specimen ( IEPA 1419 ) ; Stream Água Limpa ( 00°47’54.85”S , 52°31’49.65”W ), 29.x.2007 , I.M. Vieira , 1 specimen ( IEPA 1462 ) .— Municipality of Santana : Vila Amazonas , Private Reserve of Natural Heritage Vila Amazonas , Stream Mangueirinha , Amazon River ( 00°03’26.83”S , 51°09’17.5”W ), 29.i.2009 , I.M. Vieira , 3 females with eggs and 6 specimens ( IEPA1360 ) ; Santana Island , Amazon River ( 00°04’34.62”S , 51°08’21.69”W ), 26.ii.2007 , A.G. Santiago , 1 female with eggs and 4 specimens ( IEPA 1454 ) ( Figure 1 ). Geographic distribution. Suriname , French Guyana , Guyana and Brazil (states of Amazonas, Amapá , Pará and Roraima ) ( Kensley & Walker 1982 ; Melo 2003 ; Pachelle & Tavares 2018; Pimentel & Magalhães 2014 ; Santos et al. 2018 ). Distribution in Amapá state . Streams in gallery forests in savannas; basins of rivers Santo Antônio, Aporema, Curiaú, Matapi, Cupixi, Mutum, Amapari, Anacuí, Anotaié, Jari, Baliza stream (tributary of the Iratapuru River) and Pracuúba Lake. Previous records. Pachelle & Tavares (2018); Pimentel & Magalhães (2014) ; Santos et al. (2018) and Vieira (2003, 2008 ) Ecological notes. Species collected in streams with beds with a lot of leaves and shaded. Remarks. The specimens analyzed in this study correspond to the descriptions of ( Melo 2003 ; Pachelle & Tavares 2018; dos Santos et al. 2018 ).