SYSTEMATIC INDEX. 



529 



Crassatella, 

 Chama, 

 Tridacna, 

 Cardium, 

 Donax, 

 Cyclas, 

 Corbis, 

 Tellina, 

 Lucina, 

 Venus, 

 ' Mya, 

 Byssomia, 

 Hiatella, 

 Solen, 

 Pholas, 

 Teredo, 

 Fistulana, 

 Teredina, 

 Clavag-ella, 

 Aspergillum, 

 Biphora, 

 Ascidia, 

 Botryllus, 

 Pyrosoma, 

 Polyclinum, 

 Bbacbiofoda, 

 Lingula, 

 Terebratula, 

 Orbicula, 



CiRRHOPOSA, 



Anatifa, 

 Balanus, 



ARTICULATA, 



Annuxata, 

 Serpula, 

 Sabella, 

 Terebella, 

 Amphitrite, 

 Syphostoma, 

 Dentalium, 

 Arenicola, 

 Amphinome, 

 Eunice, 

 Nereis, 

 Alciopa, 

 3 R 



278 



Spio, 



298 



278 



Lutnbrinera, 



298 



278 



Ophelina, 



299- 



279 



Cirrhatulus, 



299 



279 



Palmyra, 



299 



280 



Aphrodita, 



299 



280 



Chsetopterus, 



300 



280 



Lumbricus, (Earth Worms] 



1 301 



280 



Nais, 



301 



280 



Climena, 



301 



281 



Hirudo, (Leeches) 



302 



281 



Gordius, 



303 



281 



CRtrSTACEA, 



305 



281 



Crabs, 



308 



282 



Lobsters, 



310 



282 



Shrimps, 



310 



282 



Prawns, 



310 



283 



SqulUa, 



311 



283 



Phyllosoma, 



312 



283 



Gammai'us, 



314 



284 



Cyamus, 



315 



284 



Oniscus, 



316 



285 



Monoculus, 



318 



285 



Limulus, (King-crab) 



319 



286 



Argula, 



319 



286 



Cahgus, 



319 



286 



Nicothoe, 



320 



286 



Trilobites, 



320 



287 



Arachnides, 



321 



288 



Spiders, 



323 



288 



Tarantula, 



333 



288 



Scorpio, 



334 





Galeodes, 



336 



290 



Chelifer, 



336 



293 



Pycnogonides, 



336 



295 



Phalangium, 



338 



295 



Acarus, (Mites) 



339 



295 



Ticks, 



340 



295 



IxsECTA, OR Insects, 



340 



296 



Myriapoda, 



352 



296 



lulus, 



555 



296 



Scolopendra, 



356 



29- 



Lepisma, 



357 



297 



Podura, 



357 



297 



Lice, 



358 



298 



Fleas, 



359 



