Synalpheus androsi Coutière, 1909

Paixão, Pedro Henrique, Terossi, Mariana, Pasinatto, Karmine, Bochini, Gabriel Lucas & Almeida, Alexandre Oliveira, 2025, Shrimps of the genus Synalpheus Spence Bate, 1888 (Decapoda: Alpheidae) from Northeast Brazil region, Zootaxa 5666 (1), pp. 1-52 : 8

Synalpheus androsi Coutière, 1909 ( Fig. 4 )

Material examined: Maranhão—Turiaçu: 1 M, Nordeste Expedition II, St. 111/112, MOUFPE 12510 ; Pernambuco—Continental Shelf off Recife: 1 M, 1 OV, 10.v.2018, 08°23′04.3′′S 34°40′07′′W, 80.0 m depth, in sponge, DZ / UFRGS 7050 ; Bahia — Salvador: 1 M, Almirante Saldanha Expedition, St. 1981, 23.ix.1968, 13°48.5′S 38°48.5′W, 49.0 m depth, MOUFPE 9212 .

Description: Coutière (1909), Ríos & Duffy (2007), Anker & Pachelle (2014).

Distribution: Bahamas (Andros Island), Belize (Carrie Bow Cay), Jamaica, Barbados and Brazil (Maranhão, Pernambuco, Bahia and Espírito Santo: Vitória-Trindade chain) ( Coutière, 1909; Dardeau 1984; Coelho et al. 2006; Ríos & Duffy, 2007; Macdonald et al. 2009; Hultgren et al. 2011; Anker & Pachelle 2014; this study).

Ecology: In association with sponges [e.g., Aiolochroia crassa ( Hyatt, 1875) , Hyattella intestinalis Lamarck, 1814 , Hymeniacidon caerulea Pulitzer-Finali, 1986 ]; solitarily or in heterosexual pairs; 14– 80 m ( Anker & Pachelle 2014; Ríos & Duffy, 2007; this study). Sampled at the continental shelf off Recife (DZ/UFRGS 7050) in association with an unidentified sponge.

Remarks: Synalpheus androsi can be identified by the distinct morphology of the third pair of pereiopods, which display a noticeable concavity on the flexor margins of the merus, carpus, and propodus (see Fig. 4B ) ( Coutière, 1909; Ríos & Duffy, 2007). This study extends the known bathymetric range of the species from 55 m ( Anker & Pachelle 2014) to 80 m.

Figures

FIGURE 4. Synalpheus androsi Coutière, 1909: female from the continental shelf off Recife, Pernambuco, Brazil [DZ/UFRGS 7050]. A, frontal region, dorsal view; B, third pereiopod, left side, lateroventral view; C, major chela, right side, mesial view; D, same, lateral view. Scale bars: 0.5 mm.