Acetes marinus Omori, 1975

Vieira, Inacia Maria, Silva, Luiz Maurício Abdon, Almeida, Alini Gomes Santiago De, Almeida, Danilo Pelaes De, Silva-Júnior, Orleno Marques & Tavares-Dias, Marcos, 2022, Diversity, distribution and new records of freshwater and estuarine shrimp in the state of Amapá, eastern Brazilian Amazon region, Zootaxa 5178 (1), pp. 41-71 : 64

Acetes marinus Omori, 1975

Examined material. Municipality of Amapá: estuary of Sucuriju River (01°40’27.36”N, 49°55’42.32”W), 28.iv.2004, cols. I.M. Vieira and C.S. Gama, 1 female ( IEPA 832 ); Mouth of Sucuriju River (01°40’09.73”N, 49°55’04.95”W), 23.vii.2002, col. I.M. Vieira, 1 specimens ( IEPA 1738 )— Municipality of Mazagão : Lower Cajari River (00°51’20.9”S, 51°43’41”W), 26.v.2014, cols. A.G. Santiago, 2 specimens ( IEPA 1620 ). Municipality of Oiapoque : Mouth of Oiapoque River (04°04’25.71”N, 51°38’35.31”W), 22.viii.2003, cols. I.M. Vieira,A.G. Santiago and E.O.Galeno, 1 specimens ( IEPA 1621 ) ( Figure 2 ) .

Geographic distribution. Guyana, Suriname French Guyana and Brazil (state Amapá, Pará and Tocantins) ( Melo 2003; Omori 1975; D’incao 1998; D’Incao & Martins 2000; Pimentel & Magalhães 2014).

Distribution in Amapá state. In the estuary of the rivers Sucuriju and Oiapoque and lower Cajari River.

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

Ecological notes. This species inhabits slightly brackish waters ( Omori 1975).

Remarks. In general, A. marinus resembles A. paraguayensis , but differs from it by the absence of a large tooth on the thigh of the third pereiopod in females and males. ( Omori 1975).

Figures

FIGURE 2. Geographic distribution map of Acetes marinus Omori, 1975; new records of Alpheus nuttingi (Schmitti, 1924); Exhippolysmata oplophoroides (Holthuis, 1948); new records of Leander tenuicornis (Say, 1918); Nematopalaemon schmitti (Holthuis, 1948) and Xiphopenaeus kroyery (Heller, 1862) from the state of Amapá, in eastern Brazilian Amazon region.