viii NORTH AMERICAN INDEX FOSSILS. 



Subclass Ostracoda 333 



Literature, 334. Artificial Key to the Genera, 335. Descrip- 

 tion of Genera and Species, 338. 



Subclass Cirripedia 370 



Subclass Malacostraca 372 



Order Phyllocarida, 372. Literature, 373. Descriptions, 373. 

 Order Schizopoda, 384. Order Decapoda, 386. Literature, 

 388. Suborder Macrura, 389. Suborder Brachiura, 393. 

 Superorder Edriopthalma, 397. Order Amphipoda, 397. Order 

 Isopoda, 398. 



Class Acerata 399 



Subclass Merostomata 399 



Order Xiphosura, 399. Literature, 399. Descriptions, 399. 

 Order Synxiphosura, 402. Order Eurypterida, 403. Litera- 

 ture, 404. Descriptions, 404. 



Subclass Arachnida 414 



Class Myriopoda 417 



Class Insecta 419 



Literature, 425. A. Palceozoic Insects, 426. Order Palaeodicty- 

 optera, 426. Order Mixotermitoidea, 429. Order Protorthoptera, 

 429. Order Protoblattoidea, 431. Order Blattoidea, 433. Order 

 Hadentomoidea, 437. Order Protodonata, 438. Order Magase- 

 coptera, 439. Order Plectoptera, 439. B. Mesozoic Insects, 441. 

 C. Cenozoic or Tertiary Insects, 442. Thysanura, 443. Order 

 Lepismoidea, 443. Pterygogenia, 443. Order Orthoptera, 443. 

 Order Phasmoidea, 444. Order Dermaptera, 444. Order 

 Thysanoptera, 444. Order Blattoidea, 444. Order Isoptera, 

 445. Order Coleoptera, 445. Order Hymenoptera, 448. 

 Order Odonata, 449. Order Plectoptera, 450. Order Rhaphi- 

 dioidea, 451. Order Neuroptera, 451. Order Phryganoidea, 

 451. Order Lepidoptera, 452. Order Diptera, 454. Order 

 Hemiptera, 455. Order Homoptera, 456. 



Phylum VIII. Echinodermata 458 



Branch Pelmatozoa 458 



Class Cystoidea 458 



Literature, 459. Artificial Key to the Genera, 459. Descrip- 

 tions, 460. 



Class Blastoidea 474 



Literature, 476. Artificial Key to the Genera, 476. Descrip- 

 tions, 477. 



