Synalpheus corallinus Macdonald, Hultgren & Duffy, 2009

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 : 20

Synalpheus corallinus Macdonald, Hultgren & Duffy, 2009 ( Figs. 11 , 12 )

Material examined: Pernambuco — Continental Shelf off Recife : 1 M, 27.ii.2018, 8°13′33.0′′S 34°37′40.3′′W, 50.6 m depth, in sponge, MOUFPE 21814 ; 1 M, 27.ii.2018, 8°13′52.1′′S 34°37′41.2′′W, 51.8 m depth, in sponge, MOUFPE 21812 .

Description: Macdonald et al. (2009).

Distribution: Jamaica (Discovery Bay) and Brazil (Pernambuco) ( Macdonald et al. 2009; this study).

Ecology: In sponges, associated with H. intestinalis ( Macdonald et al. 2009) ; in heterosexual pairs; 50.6–51.8 m ( Macdonald et al. 2009; Anker et al. 2012; this study). Sampled at the continental shelf off Recife (all lots cited above) in association with sponges, on coral rubble and algae bottom.

Remarks: S. corallinus is part of the S. brooksi complex (morphological differences regarding other species of the complex were discussed by Macdonald et al. 2009, Tab. 3, p. 12, Figs. 5–9 ). Our material agrees well with the description provided by Macdonald et al. (2009) (for comparison, see description and figures in Macdonald et al. 2009 and Figs. 11 , 12 herein). The present study provides the first information regarding depth range for the species (50.6–51.8 m), as well as the first record of the species beyond its type locality (Discovery Bay, Jamaica), significantly expanding its known distribution.

Figures

FIGURE 5. Synalpheus barahonensis Armstrong, 1949: female from the continental shelf off Recife, Pernambuco, Brazil [MOUFPE 21870]. A, frontal region, dorsal view; B, major chela, left side, mesial view; C, same, lateral view; D, minor chela, right side, mesial view; E, same, lateral view; F, second pereiopod, left side, lateral view; G, third pereiopod, right side, lateral view. Scale bars: A–F, 0.5 mm; G, 0.3 mm.

FIGURE 6. Synalpheus barahonensis Armstrong, 1949: female from the continental shelf off Recife, Pernambuco, Brazil [MOUFPE 21870]. A, pleon, left view; B, right uropod, dorsal view; C, left uropod, dorsal view; D, third maxilliped, right side, lateral view; E, telson, dorsal view. Scale bars: A, 0.5 mm; B–E, 0.3 mm.

FIGURE 7. Synalpheus belizensis Anker & Tóth, 2008: female from the Fernando de Noronha Archipelago, Pernambuco, Brazil [DZ/UFRGS 7041]. A, frontal region, dorsal view; B, major chela, right side, mesial view; C, same, lateral view; D, minor chela, left side, mesial view; E, same, lateral view; F, second pereiopod, right side, lateral view; G, third pereiopod, right side, lateral view. Scale bars: A–C, 1 mm; D–G, 0.5 mm.

FIGURE 8. Synalpheus belizensis Anker & Tóth, 2008: female from the Fernando de Noronha Archipelago, Pernambuco, Brazil [DZ/UFRGS 7041].A, pleon, left view; B, telson, dorsal view; C, left uropod, dorsal view; D, third maxilliped, right side, lateral view. Scale bars: A, 1 mm; B–D, 0.5 mm.

FIGURE 9. Synalpheus brevidactylus Anker & Tóth, 2008: male from the continental shelf off Recife, Pernambuco, Brazil [MOUFPE 21813]. A, frontal region, dorsal view; B, major chela, left side, mesial view; C, same, lateral view; D, minor chela, right side, mesial view; E, same, lateral view; F, second pereiopod, left side, lateral view; G, third pereiopod, left side, lateral view. Scale bars: A, D, E, G, 0.5 mm; B, C, 1 mm; F, 0.3 mm.

FIGURE11.Synalpheus corallinusMacdonald,Hultgren &Duffy,2009:male from the continentalshelf off Recife,Pernambuco, Brazil [MOUFPE 21812].A, frontal region, dorsal view; B, major chela, right side, mesial view; C, same, lateral view; D, minor chela, left side, mesial view; E, same, lateral view; F, second pereiopod, right side, lateral view; G, third pereiopod, right side, lateral view. Scale bars: A–E, 0.5 mm; F, G, 0.3 mm.

FIGURE12. Synalpheus corallinusMacdonald,Hultgren &Duffy, 2009:male from thecontinentalshelf off Recife,Pernambuco, Brazil [MOUFPE 21812]. A, pleon, right view; B, right uropod, dorsal view; C, left uropod, dorsal view; D, third maxilliped, right side, lateral view; E, telson, dorsal view. Scale bars: A, 1 mm; B–E, 0.3 mm.