Synalpheus ubatuba Mantelatto, França, Cunha & Almeida, 2023

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 : 36

Synalpheus ubatuba Mantelatto, França, Cunha & Almeida, 2023

Material examined: Pernambuco — Continental Shelf off Recife : 1 M, 07.ii.2018, 8°08′51.5′′S 34°34′08.0′′W, 65.0 m depth, in sponge, MOUFPE 21808 ; Sergipe —2 M, 3 OV , Plataforma Pcb 4 Face Externa Fora Fundo , 01.xi.2000, MOUFPE 15790 ; 1 M, Plataforma Pcm 11 Pós Face Externa Pé: Fora Superfície Externa , MOUFPE 15791 ; 1 OV, Plataforma Pd 02 Face Externa Terra Meio , 30.x.2000, MOUFPE 15792 ; 1 M, Plataforma Pcb 4 Face Externa Terra Superficie , 01.xi.2000, MOUFPE 15793 ; 1 M, 1 OV, Plataforma Pcm 5 Pós: Face Externa Pé : Terra Superfície , MOUFPE 15794 .

Description: Mantelatto et al. (2023).

Distribution: Brazil (Pernambuco, Sergipe, Bahia and São Paulo) ( Mantelatto et al. 2023; this study).

Ecology: Under rocks, dead coral rubble and on dead parts of M. alcicornis in association with the bryozoan Schizoporella errata ( Waters, 1878) and the sponge Amphimedon viridis Duchassaing & Michelotti, 1864 ; 2 65 m ( Almeida et al. 2012, as S. cf. brevicarpus ; 2018, as S. cf. brevicarpus (green/blue chela); Santos et al. 2012, as S. cf. brevicarpus ; Mantelatto et al. 2023; this study).

Remarks: Synalpheus ubatuba belongs to the S. brevicarpus complex ( Mantelatto et al. 2023; see remarks in the S. cf. brevicarpus section). The occurrence of S. ubatuba in the Northeast region has been confirmed in localities in southern Bahia ( Mantelatto et al. 2023). The present study expands the known bathymetric distribution for the species from 8 ( Mantelatto et al. 2023) to 65 m.