Xanthodius inaequalis inaequalis (Olivier, 1791)

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 : 76

Xanthodius inaequalis inaequalis (Olivier, 1791)

Figs 87−88

Material examined

EQUATORIAL GUINEA − Bioko Island • 4 unsexed (18.7× 11.8, 15.8 ×10, 14.6 ×9.7, 10.1 ×6.3), 2 ♂♂ (14.1 ×8.5, 14.6 × 8.6); appear in the 1910 catalogue, so its collection date is earlier; MNCN20.04/03388 . – San Juan Cape • 9 ♂♂ (min. 11.8 ×7.4, max. 15.7 ×11.9), 5 ♀♀ (min. 9.9×6.6, max. 14 ×10.6); depth 10−15 m; Aug. 1901; M. Martínez de la Escalera leg.; MNCN20.04/03462 .

GHANA • 3 ♂♂ (17.8× 11.7, 7.6 ×5.5, 6.8 ×4.8); Mar. 1993; MNCN20.04/20977 .

Remarks

The specimens MNCN20.04/03462 were identified as Xantho poressa , and were mixed with other species, those of MNCN20.04/03388 as Chlorodius sp. (fam. Xanthidae ), and the MNCN20.04/20977 as Xanthidae . In the Fig. 86 , the peculiar large cheliped fingertips can be seen, spoon-shaped, yet perfectly fitting together, the upper with the lower, very different from those of Xantho hydrophilus .

For identification, see also Monod (1956), Guinot (1967a) and Poore & Ahyong (2023).

Figures

Fig. 87. Xanthoides inaequalis inaequalis (Olivier, 1791), specimens MNCN20.04/3462b. Scale bars = 0.5 cm.

Fig.88.Xanthodiusinaequalisinaequalis(Olivier,1791).A−C.DamagedspecimensMNCN20.04/03388; D−I. Specimens MNCN20.04/20977. Scale bars = 0.5 cm.

Fig. 86. Xantho sexdentatus (Miers, 1881), MNCN20.04/41939. Scale bars = 0.5 cm.