Portunus sayi ( Gibbes, 1850 )

Parasram, Nadeshinie, Santana, William & Vallès, Henri, 2023, Checklist of the shallow-water marine Brachyura (Crustacea: Decapoda) of Barbados, West Indies, Zootaxa 5314 (1), pp. 1-62 : 37-38

Portunus sayi ( Gibbes, 1850)

( Fig. 17D )

Lupa sayi Gibbes 1850: 178 [type-locality: South Carolina; type lost].

Neptunus sayi Milne-Edwards, 1861: 317 , pl. 29, fig. 2; Milne-Edwards & Bouvier, 1894: 32; 1900: 70; Bouvier, 1922: 60, pl. 1, fig. 6; Monod, 1956: 197.

Portunus ( Portunus) sayi .— Rathbun, 1930: 37, pl. 14, figs. 6–7; Rathbun 1933: 46; Monod 1939: 567; Coelho et al. 2008: 31 ; Ng et al. 2008: 152.

Portunus sayi . — Rathbun 1897: 22; Hay & Shore 1918: 428, pl. 33, fig. 2; Williams 1965: 163, fig. 144; Felder 1973: 59, pl. 8, fig. 12; Powers 1977: 84; Williams 1984: 391, fig. 307; Abele & Kim 1986: 53; Mantelatto et al. 2009: 557, tab. 1; Questel 2014: 14; Garcia & Capote 2015: 14, fig. 6c; Rodrigues et al. 2016: 9, fig. 4C; Poupin 2018: 209; Jarquín-González et al. 2022: 6, tab. 2, 8, fig. 2.

Distribution. Western Atlantic: Canada, USA (North & South Carolina, Florida), Bermuda, Gulf of Mexico, Jamaica, St. Thomas, St, Martin, St. Barthélemy, Guadeloupe, Trinidad, Barbados, Guyana, and Brazil ( Rathbun 1897; Abele & Kim 1986; Rodrigues et al. 2016; Poupin 2018; present study).

Material examined. Barbados, Drill Hall , St. Michael, nearshore rubble, 13°04’36.30”N, 59°36’26.63”W, 1 ♀, 1 Ô (juv.) CW: 38.0, 18.8 mm ( BLSZ 205 ) .

Remarks. This is the first record of Portunus sayi from Barbados. It was collected by hand at low tide in nearshore rubble habitat, hiding among floating Sargassum . Portunus sayi can be identified by four teeth (equal length) on the frontal margin of the carapace, the median pair smaller in size than lateral pair ( Rathbun 1930).

Figures

FIGURE 17. Superfamily Portunoidea Rafinesque, 1815, dorsal habitus: A, Charybdis hellerii (A. Milne-Edwards, 1867), male, cw 69.3 mm (BLSZ 019); B, Cronius ruber (Lamarck, 1818), male, cw 13.1 mm (BLSZ 062); C, Laleonectes vocans (A. Milne-Edwards, 1878), male, cw 20.0 mm (MZUSP 40913); D, Portunus sayi (Gibbes, 1850), female, cw 38.0 mm (BLSZ 205). Scale bars: A, C, D = 20 mm; B = 5 mm.