4Q2 CRUSTACEA. 



II. ANOMOURA CANCRIDICA. 



1. BELLIDEA. 



III. ANOMOURA CORTSTIDICA. 



1. HlPPIDEA. 



IV. ANOMOURA GRAPSIDICA. 



1. PoRCELLANIDEA. Superiora. 



2. GALATHEIDEA. Inferiora or Macrourica. 



V. ANOMOURA LEUCOSIDICA. 







1. KANINIDEA. 



The Corystoid Crustacea are properly degraded forms below the 

 Cancroidea, and hence it is that the section A. Cancridica contains 

 but a single group. 



The ^Egleidea are closely related in the sutures of the carapax to 

 the Paguri, as is shown beyond ; in their penicillate branchiae, they 

 look toward the Astacoid Macroura. 



SECTION I. ANOMOURA SUPERIORA. 



SUBTRIBE I. DROMIDEA. 

 THE known genera of living Dromidea, are as follows : 



1. Antennae, internee fossis instructse. 



G. 1. DTNOMENE, Latr. Frons parce triangulatus, oculis approximates. Pedes 



brevibus ; 5ti abbreviati tantum, subdorsalcs. 

 G. 2. DROMIA, Fabr. Carapax suborbiculatus, fronte subtriangulato, anguato, 



oculis approximatis. Pedes crassi, breves ; 4ti 5tique abbreviati, subdorsales. 



