CONTENTS 



Introductory Remarks 



53 



SuBTRiBE OXYSTOMATA 



Family LEUCOSIIDAE 

 Genus Randallia 



Randallia angelica, new species 



Family CALAPPIDAE 

 Genus Osachila 



Osachila sona, new species 



SuBTRiBE BRACHYGNATHA 



Family MAJIDAE 

 Genus Podochela 



Podochela ziesenhennei, new species 

 Genus Notolopas 



Notolopas mexicanus, new species 

 Genus Mithrax 



Mithrax (Mithrax) clarionensis, new species . 

 Genus Macrocoeloma 



Macrocoeloma maccullochae, new species . 



Family PARTHENOPIDAE 

 Genus Daldorfia 



Daldorfia garthi Glassell, new species 

 Genus Heterocrypta 



Heterocrypta colombiana, new species 



Family PORTUNIDAE 

 Genus Portunus 



Portunus (Portunus) acuminatus Stimpson 



Family XANTHIDAE 

 Genus Platyxanthus 



Platyxanthus balboai, new species 

 Genus Hexapanopeus 



Hexapanopeus costaricensis, new species . 

 Genus Heteractaea 



Heteractaea peterseni, new species 

 Genus Pilumnoides 



Pilumnoides rotundus, new species . 



Family GONEPLACIDAE 

 Genus Pseudorhombila 



Pseudorhombila xanthiformis, new species 

 Genus Cyrtoplax 



Cyrtoplax panamensis Ziesenhenne, new species 

 Genus Chasmocarcinus 



Chasmocarcinus longipes, new species 



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