XX11 



SCHEME OF THE CLASSIFICATION 



PAGE 



Order 18. COLEOPTERA . 360 



a 19. HYMENOPTERA 364 



Class V. ARACHNIDA . .371 



Order i. ARANEIDA . .371 



" 2. SCORPIONIDEA . 377 



" 3. PHALANGIDEA . 379 



" 4. ACARINA . . 379 



Order 5. PEDIPALPI . 

 " 6. PALPIGRADI 



" 7. SOLIFUG/E . 



" 8. CHERNETIDIA 



" 9. XlPHOSURA . 

 " 10. EURYPTERIDA 



PAGE 

 3 8l 



382 

 382 

 382 



383 

 384 



PHYLUM XI. CHORDATA . . . - . .386 



Subphylum I. ENTEROPNEUSTA 386 



Order i. BALANOGLOSSIDA . . .' -. . . 386 



" 2. CEPHALODISCIDA 386 



Subphylum IL TUNICATA 389 



Order i. ASCIDIACEA 391 



" 2. THALIACEA 393 



" 3. LARVACEA 393 



Subphylum III. CEPHALOCHORDA 393 



IV. VERTEBRATA 400 



Class I. CYCLOSTOMATA 414 



Subclass i. Myxinoidea 420 



" 2. Petromyzontia 420 



Class II. ELASMOBRANCHII . 422 



Subclass i. Selachii 428 



Order i. SQUALI 428 



" 2. RAJI 429 



Subclass 2. Holocephali 430 



Class III. PISCES ....'. . 432 



Subclass i. Teleostomi 452 



Order i. CROSSOPTERYGII 452 



" 2. CHONDROSTEI 452 



" 3. HOLOSTEI ^ 454 



" 4. TELEOSTEI . . . .' 455 



Subclass 2. Dipnoi 471 



Class IV. AMPHIBIA 477 



Order i. APODA . . . . . 512 



" 2. CAUDATA . . 513 



" 3. SALIENTIA 517 



