TABLE OF CONTENTS. ix 



PAGE 



Order III. Decapoda 429 



Order IV. Cumacia 437 



Legion III. Arthrocostraca 438 



Order I. Amphipoda 438 



Order II. Isopoda 440 



Class II. Acerata 442 



Sub Class I. Gigantostraca 443 



Order I. Xiphosura 444 



Order II. Eurypterida 444 



Sub Class II. Arachnida 444^ 



Legion I. Arthrogastrida 447 



Order I. Scorpionida 447 



Order II. Phrynoidea 448 



Order III. Microthelyphorida 448 



Order IV. Solpugida 449 



Order V. Pseudoscorpii 450 



Order VI. Phalangida 450 



Legion II. Sphaerogastrida 451 



Order I. Araneina 451 



Order II. Acarina 453 



Order III. Linguatulida 454 



Tardigrada 455 



Pycnogonida 456 



Class III. Malacopoda 456 



Class IV. Insecta 458 



Sub Class I. Chilopoda 460 



Sub Class II. Hexapoda 461 



Order I. Apterygota 477 



Order II. Archiptera 477 



Order III. Orthoptera 480 



Order IV. Neuroptera 481 



Order V. Strepsiptera 483 



Order VI. Coleoptera 483 



Order VII. Hymenoptera 485 



Order VIII. Rhynchota 489 



Order IX. Diptera 491 



Order X. Aphaniptera 493 



Order XI. Lepidoptera 494 



Class V. Diplopoda 496 



SUMMARY 497 



Phylum X. CHORDATA 501 



Sub Phylum I. Leptocardii 502 



Sub Phylum II. Tunicata 505 



Order I. Copelatae 506 



O'rder II. Tethyoidea 508 



Order III. Thaliacea 510 



Sub Phylum III. Enteropneusta 512 



Sub Phylum IV. Vertebrata 514 



Series I. Ichthyopsida 555 



Class I. Cyclostomata 555 



