Synalpheus dardeaui (Ríos & Duffy, 2007)

Material examined: Pernambuco — Tamandaré: 1 M, Carneiros, 20.vii.2019, 8°41′32′′S 35°4′25′′W, 3.5 m depth, in sponge, MOUFPE 21620 .

Description: Ríos & Duffy (2007) and Oliveira et al. (2015).

Distribution: USA (North Carolina, Florida), Belize, Panama, Curaçao, and Brazil (Pernambuco and Bahia) (Ríos & Duffy, 2007; Hultgren et al. 2010; Anker et al. 2012; Oliveira et al. 2015; this study).

Ecology: In sponges [ Spheciospongia vesparium (Lamarck, 1815), Lissodendoryx colombiensis Zea & van Soest, 1986, and Ircinia cf. strobilina (Lamarck, 1816)]; on seagrass banks, among roots in mangroves with a high abundance of sponges; in heterosexual pairs; shallow waters to 65 m (Ríos & Duffy, 2007; Hultgren et al. 2010; Anker et al. 2012; Oliveira et al. 2015). Sampled in association with a sponge (unidentified).

Remarks: Oliveira et al. (2015) highlighted differences between their material and the type series of the species, interpreting these as intraspecific variations (for more details, see Oliveira et al. 2015, Remarks and Fig. 2, and Ríos & Duffy, 2007, Figs. 3–6). The material analyzed in this study is consistent with the variations reported by Oliveira et al. (2015). Furthermore, with the new record, this study fills a gap in the species’ known distribution along the Brazilian coast.