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Fig. 14 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 14. Polybius holsatus (Fabricius, 1798), ♂ from Belgium, Duinbergen (RBINS, INV. 187221). A. Dorsal habitus. B. Facial habitus. C. Ventral habitus. D. Carpus of right pereiopod.

Fig. 11 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 11. Polybius vernalis (Risso, 1827), ♂ from Spain, Málaga, Fuengirola (RBINS, INV. 187238). A. Dorsal habitus. B. Carapace. C. Carpus of right pereiopod.

Fig. 10 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 10. Polybius vernalis (Risso, 1827), ♂ from Tunisia, Bay of Tunis (RBINS, INV. 187235). A. Dorsal habitus. B. Facial habitus. C. Ventral habitus.

Fig. 8. Left gonopod 1 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 8. Left gonopod 1 of male. A–B. Polybius marmoreus (Leach, 1814) from Belgium, Heist (RBINS, INV. 187218). A. Ventral view. B. Dorsal view. C–D. Polybius dioscurus sp. nov., paratype, ♂ from Belgium, between Nieuwpoort and Oostduinkerke (RBINS, INV. 187223). C. Ventral view. D. Dorsal view. E–F. Polybius vernalis (Risso, 1827) from Tunisia, Bay of Tunis (RBINS, INV. 187235). E. Ventral view. F. Dorsal view.

Fig. 13 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 13. Polybius marmoreus (Leach, 1814), ♂ from Belgium, Heist (RBINS, INV. 187218). A. Dorsal habitus. B. Carapace facial view. C. Carpus of right pereiopod. D. Ventral view.

Fig. 6 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 6. Dorsal view of orbital region and adjacent lateral rostral teeth. A. Polybius dioscurus sp. nov., paratype, ♂ from Belgium, between Nieuwpoort and Oostduinkerke (RBINS, INV. 187223). B. Polybius vernalis (Risso, 1827), ♂ from Tunisia, Bay of Tunis (RBINS, INV. 187235). C. Polybius dioscurus sp. nov., ♀ from Málaga (CRUST_ICMAN/3765) D. Polybius vernalis, ♂ from Málaga (CRUST_ ICMAN/3789). Arrows show differences in the orbital region between both species.

Fig. 7 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 7. Frontal region in dorsal view, male. A. Polybius marmoreus (Leach, 1814) from Belgium, Heist (RBINS, INV. 187218). B. Polybius dioscurus sp. nov., paratype, ♂ from Belgium, between Nieuwpoort and Oostduinkerke (RBINS, INV. 187223). C–E. Polybius vernalis (Risso, 1827). C. Specimen from Tunisia, Bay of Tunis (RBINS, INV. 187235). D. Specimen from Spain, Málaga, Fuengirola (RBINS, INV. 187238). E. Specimen from Bulgaria, Varna Bay (RBINS INV. 187236). F. Polybius holsatus (Fabricius, 1798), ♂ from Belgium, Duinbergen (RBINS, INV. 187221).

Fig. 5 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 5. Polybius dioscurus sp. nov., paratype, ♂ from Belgium, between Nieuwpoort and Oostduinkerke (RBINS, INV. 187223). A. Dorsal habitus. B. Facial habitus. C. Ventral habitus. D. Carpus of right cheliped.

Fig. 3 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 3. Polybius dioscurus sp. nov., holotype, ♂, 26.4 mm CW, from Valdelagrana, Cádiz, Spain, 36°43′ N, 06°14′ W, 3.3–6.6 m depth, 31 Oct. 1996 (CRUST_ICMAN/3759). A. Dorsal habitus. B. Right cheliped, facial view. C. Carpus of left cheliped. D. Carpus to dactylus of right pereiopod 5. E. Body in ventral view, abdomen view.

Fig. 2 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 2. Maximum likelihood (ML) phylogenetic tree based on mitochondrial cytochrome c oxidase subunit I sequences of species of Polybius Leach, 1820 and Liocarcinus Stimpson, 1871, using 2000 Bootstrap replicates. Number on nodes represent ML Bootstrap values, only values>70 are included. Carcinus aestuarii Nardo, 1847 and C. maenas (Linnaeus, 1758) are used as outgroup. GenBank accession codes are indicated for each species, except those with codes XX## which sequences are listed in Supp. file 1.

Fig. 1 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 1. Neighbor-Joning (NJ) phylogenetic tree based on mitochondrial 16S rRNA sequences of species of Polybius Leach, 1820 and Liocarcinus Stimpson, 1871, using 2000 Bootstrap replicates. Number on nodes represent NJ Bootstrap values, only values> 70 are included. Carcinus aestuarii Nardo, 1847 and C. maenas (Linnaeus, 1758) are used as outgroup. GenBank accession codes are indicated for each species, except those with codes XX## which sequences are listed in Supp. file 1.

Fig. 4 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 4. Polybius dioscurus sp. nov., paratype, ♂, 36.7 mm CW, from Agadir Bay, Morocco. 30°26′ N, 09°40′ W – 30°18′ N, 09°37′ W, 6 to 25 m depth, May 1999 (CRUST_ICMAN/3762). A. Dorsal habitus. B. Right cheliped, facial view. C. Carpus of left cheliped. D. Dactylus of right pereiopods 5 and 4. E. Body in ventral view.

Fig. 15. Polybius henslowii Leach, 1820 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 15. Polybius henslowii Leach, 1820, ♂ from France, Bay of Biscay, cruise PELGAS 10, stn O.0627, chalut 68 (RBINS, INV. 187237). A. Dorsal habitus. B. Facial habitus. C. Ventral habitus. D. Carpus of right pereiopod.

Fig. 9 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 9. Polybius dioscurus sp. nov., paratypes from Belgium, between Nieuwpoort and Oostduinkerke (RBINS, INV. 187230), colour variation (in life) (sex not recorded during photo session).

Fig. 12 in A new cryptic species of Polybiidae (Crustacea: Decapoda: Portunoidea) from the East Atlantic, with considerations on the genus Polybius

Fig. 12. Polybius vernalis (Risso, 1827), ♂ from Bulgaria, Varna Bay (RBINS INV. 187236). A. Dorsal habitus. B. Carapace.

Fig. 5 in Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource

Fig. 5. Achelous spinimanus (Latreille, 1819). Seasonal variation in the proportion of adult females and adult males in different gonadal stages in the Ubatuba region (OF, ovigerous females; DE, developed gonads; ED, developing gonads; RU, rudimentarY gonads; IM, immatures).

Fig. 3 in Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource

Fig. 3. Diagram showing the seasonal variation of water temperature and salinity from January 1998 to December 1999, in three bays (Ubatumirim, Ubatuba and Mar Virado), from the São Paulo state, southeastern coast of Brazil (CW, Coastal Water; TW, Tropical Water; SACW, South Atlantic Central Water).

Fig. 1 in Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource

Fig. 1. Map of the Ubatuba region, in the northeastern coast of São Paulo state, Brazil, showing the three bays (Ubatumirim, Ubatuba and Mar Virado), and their respective sampling stations. Font: adapted from ANDRADE et al. (2014).

Fig. 2 in Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource

Fig. 2. Bottom and surface temperature (BT and ST, respectively), seasonal variation in each sampling stations and areas (Shel = sheltered and Exp = exposed) from 1998 to 1999.