xr 



ARTICULATA WITH ARTICULATED FEET. 

 CLASS II. CRUSTACEA. 



Dirision of Crustacea into Sections and Orders, 153. 



SECTIONS. ORDERS. 



fDecapoda. 

 I Stomapoda. 



I. MALACOSTRACA. <> Lc^modipoda. 



I Amphipoda. 

 LIsopoda. 



II. ENTOMOSTRACA. { 



SECTION I. MALACOSTRACA. 



a. Eyes placed on a moveable and articulated Pedicle. 

 ORDER I. DECAPODA, 156 

 Fom. 1. BRACHYURA, 161 

 Cancer, 162 



Pinnipedes, 163 

 Matuta, 163 

 Polybius, 163 

 Orythyia, 164 

 Podopthalmus, 164 

 Pcrtunus, 164 

 Platyonichus T 166 

 Arcuata, 166 



Cancer proper, 166 , 

 Cforodius, 167 

 Carpilius, 167 

 Xcmtho, 167* 

 Pirimela, 167 

 Atelecyclus, 168 

 Thia, 168 

 Mursia,168 

 Hepatus, 16$ 

 Quadrilatera, 169 

 Eriphia, 1 69 

 Trapezia, 170 

 Pilumnus, 170 

 Thelphusa, 170 

 Gonoplax, 171 

 Macropthalmus, 172 

 Gelasimus, 172 

 Ocypode, 173 

 Mictyris, 1?4 

 Pinnotheres, 174 

 Uca, 175 



* Those genera which we mention accessorily, either because they are but slightly 

 or not at all known to us, or because we unite them with others, are printed i* 

 italics. 



