Portunus ponticus Fabricius, 1798

Remarks: After an examination of photographs of the holotype of Portunus ponticus Fabricius, 1798 View in CoL , from the ZMUC ( Jensen, 2006), we propose here to include it in Lupocycloporus . The type specimen (the type data from J. C. Fabricius were published by Zimsen, 1964) is consistent with species of the latter genus by the almost hexagonal carapace with transverse granular ridges on its dorsum and with two submedian frontal teeth most prominent (instead of patches of granules and small submedian frontal teeth in Monomia ) and slender chelae, which are comparatively stouter in Monomia spp. The merus of the swimming leg possesses a distinct posterodistal acute tooth, a character typical for Lupocycloporus and Alionectes , but lacking in Monomia (see Koch et al., 2015b).

Size: Small to medium-sized crabs; known maximum size ranges from 12.5 mm × 22.0 mm ( Lupocycloporus innominatus; Spiridonov, 1999) to 24.0 mm × 44.5 mm