Download PDF as one large file - AToL Decapoda

572 Family Portunidae
Family Portuiiidae
Key to genera and species
[Based on Rathbun, 1930, and Williams, 1984]
1. Carapace with 3 to 5 teeth on anterolateral margin 2
Carapace with 9 anterolateral teeth 4
2. (1) Anterolateral teeth 3 Benthochason schmitti
Anterolateral teeth 5 3
3. (2) Anterolateral teeth similar, dentiform; dactyli of swimming paddles broadly oval;
male abdomen oblong Ovalipes
Long spine at lateral angle of carapace instead of tooth; dactyli of swimming
paddles broadly lanceolate, pointed; male abdomen triangular
Bathynectes longispina
4. (1) Movable part of antenna excluded from orbit by prolongation of basal segment;
anterolateral teeth alternatively large and small Cronius
Movable part of antenna not excluded from orbit. 5
5. (4) Carpus of cheliped without mesiodistal spine; abdomen of male T shaped............
Callinectes
Carpus of cheliped with mesiodistal spine; abdomen of male triangular. 6
6. (5) Front with 2 bifurcated teeth between inner orbitals; fissures on orbital margin
broadly open; color light brown, thickly covered over dorsal surface with small
white spots, reticulate pattern persisting in alcohol Arenaeus cribrarius
Front with 4 separate teeth between inner orbitals (latter sometimes bifurcate);
fissures on orbital margin closed except for shallow notch; color varied but never
as above Portunus