Download PDF as one large file - AToL Decapoda

496 Family Majidae
31. (29) Rostrum small; carapace ovate, usually broader than long: .. Mithrax
Rostrum of good size, usually with two strong horns; carapace broadly pyriform;
basal antenna! segment armed with prominent spine at anteroexternal angle .........
Microphrys
32. (28) Lateral margin of carapace armed with series of strong spines; basal antennal
segment very broad 33
Lateral margin of carapace not armed with series of strong spines, but with spine,
usually strong, at lateral angle of carapace 34
33. (32) Basal antennal segment quadridentate; postocular tooth large, quadrangular,
armed with two teeth or spines Coelocerus spinosus
Basal antennal segment with fewer than four spines or teeth; postocular tooth of
moderate size, triangular, armed with only one spine Stenocionops
34. (32) Orbits strongly projecting; rostral homs short; carapace broad....Macrocoeloma
Orbits little projecting; rostral horns long and slender; carapace narrow..............
Leptopisa setirostris