Download PDF as one large file - AToL Decapoda

Genus $esav*na Say, 1817
Key to species
| Adapted from Abele, 1973]
Family (Irapsidae 667
1. Movable finger of male chela greatly enlarged proximally; apex of gonopod with
two sutures S. benedicti
Movable finger of male chela normal, not greatly enlarged proximally; apex of
gonopod without two sutures 2
2. (1) Superior margin of palm with distinct row of granules; movable finger with row of
sharp tubercles dorsally; carapace with tooth or lobe posterior to outer orbital angle .
,.,.,.•.......5
Superior margin of palm without distinct row of granules; movable finger without
row of sharp tubercles dorsally; carapace without tooth or lobe posterior to outer
orbital angle ...... 3
3. (2) Gonopod with endpiece central, not curved; merus of second walking leg with
length greater than 2.6 times width S. ricordi
Gonopod with endpiece lateral, curved; merus of second walking leg with length
less than 2.6 times width 4
4. (3) Dactylus of fourth walking leg unarmed dorsally 5. miersii
Dactylus of fourth walking leg armed dorsally with short black spines ,
S. cinereum
5. (2) Tooth behind outer orbital angle deeply cut into carapace S. curacaoense
Tooth behind outer orbital angle little more than lobe S. reticulatum