VI BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM 



Order Copepoda — Continued. 



Suborder Harpacticoida — Continued. Page 



Cylindropsyllidae 286 



Tachidiidae 292 



Pontostratiotidae 304 



Metidae 305 



Suborder Cyclopoida 310 



Oithonidae 311 



Cy clopinidae 317 



Cyclopidae 320 



Clausidiidae 344 



Lichomolgidae 346 



Oncaeidae 350 



Corycaeidae 354 



Ergasilidae 375 



Bomolochidae 379 



Taeniacanthidae 384 



Suborder Notodelphyoida 385 



Notodelphyidae 386 



Doropygidae 387 



Botryllophilidae 391 



Suborder Monstrilloida 393 



Monstrillidae 393 



Suborder Caligoida 397 



Caligidae 397 



Trebidae 413 



Euryphoridae 415 



Pandaridae 424 



Cecropidae 441 



Anthosomidae 446 



Eudactylinidae 452 



Pseudocycnidae 474 



Dichelesthiidae 476 



Lernaeidae 479 



Pennellidae 489 



Suborder Lernaeopodoida 492 



Chondracanthidae 493 



Lernaeopodidae 509 



Sphyriidae 524 



Antheacheridae 531 



Appendix A: Location and description of ponds of the area 534 



Appendix B: Key to the suborders and genera of the Copopoda 538 



Key to the suborders 539 



Key to the genera of the suborder Arguloida 539 



Key to the genera of the suborder Calanoida 540 



Key to the genera of the suborder Harpacticoida 560 



Key to the genera of the suborder Cyclopoida 583 



Key to the genera of the suborder Notodelphyoida 598 



Key to the genera of the suborder Monstrilloida 604 



Key to the genera of the suborder Caligoida 604 



Key to the genera of the suborder Lernaeopodoida 613 



Explanation of plates 624 



Index 625 



