Download PDF as one large file - AToL Decapoda

334 Family Diogenidae
10. (9) Fifth antennal segment bearing 3 spines on basal part of outer margin; antennal
acicle with 2-3 spines on inner margin P. grayi
Fifth antennal segment bearing 2 spines on basal part of outer margin; antennal
acicle with no spines on inner margin P. erythrops
11. (9) Antennal peduncles slightly exceeding acicles P. sericeus
Antennal peduncles reaching just beyond middle of eyestalks P. puncticeps
12. (6) Antennal peduncle not overreaching middle of eyestalks P. spinipes
Antennal peduncle overreaching middle of eyestalks 13
13. (12) Rostrum slender, its sides parallel from base to near acute tip 14
Rostrum broad at base, its sides converging to tip 15
14. (13) Terminal segment of antennal peduncle armed with two spines; carapace triangular
in shape in dorsal view ...P. tenuirostris
Terminal segment of antennal peduncle without spines; carapace rectangular in
shape in dorsal view P. cadenati
15. (13) Shield with dorsolateral surface and margins unarmed or with very few, minute
spinules 16
Shield with dorsolateral surface and margins armed with numerous small spines or
spinulose tubercles 19
16. (15) Dorsal margins of meriof chelipeds unarmed ..P. hernancortezi
Dorsal margins of meri of chelipeds with spinules or spinulose protuberances 17
17. (16) Rostrum greatly exceeding lateral projections, slender, acute, strongly depressed
distally, terminating in small spine P. anomalus
Rostrum considerably exceeding lateral projections, terminating acutely or
subacutely but not in a small spine 18
18. (17) Fifth antennal segment with two dorsal spines P. wassi
Fifth antennal segment with few tufts of short setae, with no spines
.....P. limonensis
19. (15) Chelipeds virtually devoid of setae. P. starcki
Chelipeds covered with tufts of short, plumose setae 20