SCHEME OF THE CLASSIFICATION 



XXI 



v 





Phylum IX. MOLLUSCA 



Class I. AMPHINEURA . 

 Order i . Polyplaco- 

 phoka 

 " 2. Aplacophora 

 Class II GASTROPODA . 

 Subclass I. Streptoneura 

 Order I. Aspidobran- 



CHIA . . 



" 2. Pectinibran- 



CHIA . . 



Subclass II. Euthyneura . 

 Order i. Opisthobran- 

 chia . . 



PAGE 

 2 5 I 



251 

 252 

 252 

 258 



2 S 8 



258 

 258 



258 



PAGE 

 243 



258 

 26l 

 26l 



Order 2. Pulmonata 

 Class III. SCAPHOPODA . 

 Class IV. PELECYPODA . 



Order 1 . Protobran- 



ckia . . . 262 



" 2. FlLIBRANCHIA . 262 



" 3. eulamelli- 



branchta . 262 

 " 4. Septibranchia 262 

 Class V. CEPHALOPODA . . 264 

 Order 1 . Tetrabran- 



chia . . 268 



" 2. DlBRANCHIA . 268 



Phylum X. ARTHROPODA 



Class I. CRUSTACEA . . 



Subclass I. Branchiopoda 



Order 1. Phyllopoda 



" 2. Cladocera 



Subclass II. Ostracoda . 



•' 3. Copepoda . . 



" 4. Cirripedia 



" 5. Malacostraca 



Order 1. Nebaliacea 



" 2. Anaspidacea 



" 3. Mysidacea . 



" 4. Cumacea . 



" 5. Tanaidacea 



" 6. ISOPODA . . 



" 7. Amphipoda 



" 8. Euphausiacea 



" g. Dec apod A . . 



Suborder 1 . Natantia 



" 2. Reptantia 



" 10. Stomatopoda „ 



Class II. ONYCHOPHORA . 



Class III MYRIAPODA . . 



276 

 292 

 292 

 294 



Order 1. Pauropoda 

 " 2. Diplopoda , 

 " 3. Chilopoda 

 " 4 Symphyla 



294 Class IV. INSECTA 



294 

 294 

 294 

 294 

 294 

 294 

 294 

 297 

 297 

 297 

 297 

 297 

 297 

 297 

 297 



305 

 308 



Order 1. Aptera . . 



" 2. Ephemerida 



" 3. Odonata 



" 4. Plecoptera 



11 5. isoptera 



a 6. CORRODENTIA 



" 7. Mallophaga 



" 8. Thysanoptera 342 



u 9. EUPLEXOPTERA 342 



274 



309 



3°9 



310 



3" 



312 



337 

 338 

 339 

 34° 

 34o 

 34i 

 34i 



" 10. Orthoptera 



" II. Hemiptera 



" 12. Neuroptera 



" 13. Mecoptera 



" 14. Trichoptera 



" 15. Lepidoptera 



" 16. Diptera . . 



343 

 345 

 349 

 349 

 35° 

 35° 

 356 



17. Siphonaptera 359 



