VTII ANIMAL KESOTJRCES OF THE UNITED STATES. 



Page. 



III. Reptiles — Continued. 



27. Testudinata, (tortoises) 13 



28. Lacertilia, (lizards) , 12 



29. Ophidia, (serpents) 12 



IV. Amphibians 12 



no. Anura, (frogs) 12 



31. Urodela, (salamanders) 13 



32. Proteida, (menobraucbus, &c. ) 12 



33. Tracbystomata, (sirens) 13 



V. Fishes 13 



34. Pediculati, (anglers) 13 



35. Plectognatbi , (globe, trunk, and file fishes) 13 



36. Lopbobrancbii, (pipe-fishes, &c.) 13 



37. Hemibranchii, (sticklebacks, &c.) 13 



38. Teleocepbali 13 



Hetcroeomata, (flat fishes) 13 



Anacantbini, (cods, &c.) 14 



Acantbopteri,(spiuy-i3uned fishes) 14 



Percesoces, (mullets, &c.) 15 



Synentognatbi, (gar-fishes and flying-fishes) 15 



Haplomi, (pikes, &c.) 15 



Isospoudyli, (salmon, herring, «fcc.) 15 



Eventognathi, (carps) 15 



39. Nematognatbi, (cat-fishes) 16 



40. Apodes, (eels) 16 



41. Cycloganoidei, (amias) 16 



42. Rbomboganoidei, (gar-pikes) '. Mi 



43. Selacbostomi, (paddle-fish) 16 



44. Chondrostei, (sturgeons) 16 



VI. Elasmobraxchiates 16 



45. Holocephali, (chimajras) , 16 



46. Raiffi, (skates and rays) 16 



47. Squall, (sharks) 16 



VII. Marsipobranchiates 17 



48. Hyperoartia, (lampreys) 17 



49. Hyperotreti, (hags) 17 



VIII. Lkptocardians 17 



50. Cirrostomi, (lancelets) 17 



IX. Insects 17 



51. Insecta, (insects) 17 



52. Myriapoda, (centipedes, &c.) 17 



X. Auachneans , 17 



53. Arachnida, (spiders) 17 



XI. Arthropods 18 



54. Crustacea, (crabs, &c.) L3 



