!» INDEX. 



ARTICULATA WITH ARTICULATED FEET. 

 CLASS II.— CRUSTACEA. 



Division of Crustacea into Sections and Orders, 153. 



SECTIONS. ORDERS. 



fDecapoda. 

 I Stomapoda. 

 I. MALACOSTRACA. -< Lfpmodipoda. 



I Amphipoda. 

 Lisopoda. 

 II. ENTOMOSTRACA. f Branchiopoda. 



Psecilopoda. 

 SECTION I.— MALACOSTRACA. 



a. Eyes placed on a moveable and articulated Pedicle, 

 Order I.— DECAPODA, 156 

 Fam. 1. — Brachyura, 161 

 Cancer, 162 



Pinnipedes, 163 

 Matuta, 163 

 Polybius, 163 

 Orythyia, 164 

 Podopthalmus, 164 

 Pcrtunus, 164 

 Platyonichus, 166 

 Arcuata, 166 



Cancer projjcr, 1 66 



C'lorodius, 167 

 Carpilius, 167 

 Xantho, 167* 

 Pirimela, 167 

 Atelecyclus, 168 

 Thia, 168 

 Mursia, 168 

 Hepatus, 168 

 Quadrilatera, 169 j 



Eriphia, 169 : 



Trapezia, 170 i 



Pilumnus, I70 ,■ 



Thelphusa, I70 J 



Gonoplax, I7I j 



Macropthalmus, 17? 

 Gelasimus, 172 

 Ocypode, 173 



Mictyris, 174 { 



Pinnotheres, 174 I 



Uca, 175 



* Those genera whicli 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 in | 



italics. ! 



