Shallow-water caridean shrimps from southern Bahia, Brazil, including the first record of Synalpheus ul (Ríos & Duffy, 2007) (Alpheidae) in the southwestern Atlantic Ocean Author Almeida, Alexandre O. Author Boehs, Guisla Author Araújo-Silva, Catarina L. Author Bezerra, Luis Ernesto A. text Zootaxa 2012 3347 1 35 journal article 10.5281/zenodo.214608 10000391-ec0f-495f-8ee4-61b667fa68e1 1175-5326 214608 Alpheus formosus Gibbes, 1850 ( Fig. 2 C) Alpheus formosus Gibbes, 1850 : 196 . Material examined. 2 m , 3 f, 03.VIII.2008 , Cairú, Tassimirim Beach, Boipeba Island, MZUESC 1320; 1 f, 1 ni, 16.V.2007 , Santa Cruz Cabrália, Coroa Vermelha Beach, MZUESC 867; 1 ni, 16.V.2007 , Santa Cruz Cabrália, Coroa Vermelha Beach, MZUESC 868. Distribution. Western Atlantic—Bermuda, North Carolina to Brazil (Atol das Rocas, Fernando de Noronha, Ceará to São Paulo) ( Christoffersen 1998 ; Anker et al. 2008b ). Ecological notes. Specimens were collected on coral reefs, from crevices of coral rubble and concretions of calcareous algae. Salinity range: 33–39 psu. Depth range: intertidal to 42 m ( Anker et al . 2008b ). Previous records. Abrolhos ( Gomes Corrêa 1972 , as A. formosus ; Christoffersen 1979 , as A. formosus ); Camamu Bay ( Almeida et al. 2007b , as Alpheus cf. formosus ). Remarks. Alpheus formosus differs from the closely related A. paraformosus Anker, Hurt & Knowlton, 2008 in the presence of balaeniceps setae on the minor chela fingers in both sexes; the more posteriorly extending orbitorostral grooves; and some details of the color pattern ( Anker et al . 2008b ; see also Fig. 2 C). The latter species is currently known only from the western Caribbean Sea.