CONTENTS Xiii 



MoLLUSCA (Continued). page 



Amphineura 130 



Chaetopleura (Chiton) 130 



Gastropoda 131 



Busycon (Fulgur, Sycotypus) 132 



Cephalopoda 140 



Loligo pealeii (Squid) 140 



ARTHROPODA 152 



Crustacea 15q 



Homarus americanus (Lobster) 156 



Callinectes hastatus (Blue Crab) ' 163 



Pagurus (Hermit Crab) ' igy 



Emerita (Sand Mole) | * ' igg 



Chloridella 169 



Michtheimysis (or Heteromysis) ■ . 170 



Talorchestia (Beach-Flea) ' 171 



PorcelUo or Oniscus (Sow-Bug) ' . * 172 



Caprella [ 172 



Branchipus (Fairy Shrimp) [[[ I73 



Daphnia I73 



Cyclops (Water-Flea) . . . 174 



Argulus (Fish-Louse) [[[ I75 



Lepas (Goose-Barnacle) [ . ' 175 



Arachnoidea [ * 177 



Limulus (Horseshoe Crab) I77 



Buthus (Scorpion) ] I79 



Epeira (Round- Web Spider) []] 180 



Phoxichihdium 182 



Myriapoda ] ' I 182 



Lithobius (Centipede, Earwig) 182 



Julus (Thousand-legs) 183 



Insecta I 184 



Acridium (Grasshopper) 184 



Apis melhfica (Honey-Bee) 189 



CHORDATA I94 



Enteropneusta 196 



DoHchoglossus (Balanoglossus) Kowalevskii 196 



Molgula manhattensis 197 



Perophora 201 



Botryllus ' 202 



Amaroucium (Sea-Pork) 203 



Salpa cordiformis 205 



Cephalochorda ". 206 



Amphioxus lanceolatus 206 



NOTES FOR GUIDANCE IN MAKING PERMANENT PREPA- 

 RATIONS 208 



GLOSSARY 213 



INDEX 227 



