Polybius dioscurus García-Raso, d’Udekem d’Acoz, Moukrim, Schubart & Cuesta, 2024

Muñoz, Isabel, García-Raso, J. Enrique, Chillón, Begoña Sánchez & Cuesta, Jose A., 2025, Marine crabs from African waters housed in the Museo Nacional de Ciencias Naturales (MNCN-CSIC): An opportunity for biogeographic and systematic studies. Part I: Heterotremata (Decapoda, Brachyura), European Journal of Taxonomy 996, pp. 1-94 : 53

Polybius dioscurus García-Raso, d’Udekem d’Acoz, Moukrim, Schubart & Cuesta, 2024

Fig. 58

Material examined

MOROCCO − Larache • 2 ♂♂ (16.3×13.2, 11.8 ×10.1); 1955; MNCN20.04/20971 .

WESTERN SAHARA − La Agüera • 3 ♂ ♂ (20.4 ×16.6, 25.5 ×20.8, 21.2 ×17.6), 1 ♀ (15.9 ×12); Sep. 1993; MNCN20.04/04478 .

Remarks

Polybius dioscurus is a pseudocryptic species described in 2024. It is close to P. vernalis (Risso, 1827) , P. holsatus (Fabricius, 1798) and P. marmoreus (Leach, 1814) . This work confirms the presence of this species in Morocco as early as 1955, and in Western Sahara as 1993.

For identification, see also García-Raso et al. (2024).

Figures

Fig. 58. Polybius dioscurus García-Raso, d’Udekem d’Acoz, Moukrim, Schubart & Cuesta, 2024. A−F. Specimens MNCN20.04/20971. G−I. Specimens MNCN20.04/04478. Scale bars = 0.5 cm.