106 



CRUST ACEORUM 

 CONSPECTUS DICIIOTOMUS. 



Bradjpura. 



1 pNATATORIA. 



j-LATIREMATA. 



J_|-Pluriremaxa. — Polybiiis, Matuta. 



'-BlREMATA. 



I i-Rotundiora. — Orythin, Poi-ivnus. 

 I-Radiifonnia (Shuttle Crabs). — Ltq^a, Podopthahnus. 



^ANGUSTIREMATA.— Portumnus, Carcimts. 



LCURSORIA. 



^ROTUNDATA. 



I pARCUATA. 



I L|-Conclitipedes. — Calappa, Oethra. 



1 '-Inconditipedes. 



I \j-Ec\\\&i?i.—Hepatus, Cancer, Xantho, Pirimela, Pibmntis. 



i-Ciliiconies. — Attelecyclus, Thin. 

 -Oebiculata. 



Indomitata. 



i-Sphaeroidea. 



If-Genuina. 

 I I r-'Ecr\ic\aXA.—Leucos'ia,Ph}li/ra,Persephona, 

 I — I I — Myra, Ilia, Arcniiia, Iphis. 



iicigera. — Nursia, Ebalia. 

 l-Horizontalia. — Ixa, 



LTurgida. — Gecarcinus 



'-Domitata. — Pimiotheres 



^ANGULATA. 

 pDepressa. 



1_ |-Dorsipedata. — Dorippe, Homola, Drornia*?? 

 L-Thoracipedata. 



I pPenicillata.— Grapsus, Plagusia. 

 I— I Quadrata. — Ocypode, Gonoplax, Uca, Eriphia, 

 L Thelphusa. 



■Rostrata. 

 I pFoveata. — Parthenope, Lambnis. 

 ■-Efoveata. 



I pValidJpedes. 



|_i-Spiiriipedes. — Lithodes (dua species);^ 

 '-Communipedes. 



I pSpinifrontes. — Eurynome, Micippa, 

 ' — j Maia, Pisa, Lissa. 



LEmarginatifrontes. — Hyas, Mithrax, 

 Libinia, Docleits. 

 -Tenuipedes. 

 I i-F issirostres. — Iiiackus,Achatis, Maa-opodia, 

 ' — I JEgeria. 



i-Integra. — Leptnpodia, Paclo!iis. 



•jHaCrUra, {to be continued.) 



* " Genus dabit characterem, nee cliaracter Genus." 



