XX 
INDEX. 
ARTICULATA WITH ARTICULATED FEET. 
CLASS II.— CRUSTACEA. 
Division of Crustacea into Sections and Orders, 153. 
SECTIONS. 
I. MALACOSTRACA. 
II. ENTOMOSTRACA. 
SECTION I. 
ORDERS. 
r Decapoda. 
I Stomapoda. 
Lpemodipoda. 
I Amphipoda. 
{_Isopoda. 
J Branchiopoda. 
\ Paecilopoda. 
-MALACOSTRACA. 
a. Eyes placed on a moveable and articxdated Pedicle. 
Order I.— DECAPODA, 156 
Fam. 1. — Brachyuba, 161 
Cancer, 162 
Pinnipedes, 163 
Matuta, 163 
Polybius, 163 
Orythyia, 164 
Podopthalmus, 164 
Portunus, 164 
Platyonichus, 166 
Arcuata, 166 
Cancer proper, 166 
Ctorodius, 167 
Carpilius, 167 
Xant/io, 167* 
Pirimela, 1 67 
Atelecyclus, 168 
Thia, 168 
IMursia, 168 
Hepatus, 168 
Quadrilatera, 1611 
Eli phi a, 1 69 
Trapezia, 170 
Pilumnus, 170 
Thelphusa, I70 
Gonoplax, I7I 
Macropthalmus, 172 
Gelasimus, 172 
Ocypode, 173 
Mictyris, 174 
Pinnothei-es, 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 ia 
italics. 
