Vlll 



INTRODUCTION. 



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Emys reticularia, 25 

 „ macrocephala, 26 

 „ fioridana, 26 

 „ hieroglyphica, 26 

 „ guttata, 26 

 „ picta, 27 

 „ Bellii, 27 

 Malaclemys concentrica, 28 

 Cistudo Carolina, 30 

 Kinosternon oblongum, 33 



Doubledayii, 33 

 pensylvanicum, 33 

 odoratum, 34 

 Chelydra serpentina, 34 

 Trionyx ferox, 49 



„ muticus, 50 

 Alligator missisipensis, 66 



West coast. 



*? Emys ornata, 22 

 „ oregonensis, 23 



Tropical America. 



Testudo tubulata, 5, W. Indies 

 ?Kinyxys Homeana, 11 

 Emys scabra, 20 



„ rugosa, 24, W. Indies. 

 „ decussata, 24, W. Indies 

 ? „ vermiculata, 25 

 Kinosternon scorpioides, 32 

 „ triporcatum, 34 



Hydraspis planiceps, 39 

 radiolata, 39 

 Spixii, 39 

 depressa, 39 

 gibba, 40 

 nasua, 40 

 Waglerii, 40 

 Gaudichaudii, 40 

 „ Hilairii, 40 

 ,, lata, 41 

 „ qffinis, 41 

 *?Phrynops Geoffroyana, 41 

 rujipes, 41 



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5? 



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? Phrynops Bellii, 42 

 ? „ Miliusii, 42 

 Hydromedusa Maximiliana, 44 



„ jlavilabris, 44 



Chelys Matamata, 44 

 Peltocephalus Tracaxa, 45 

 Podocnemis expansa, 45 



„ Dumeriliana, 45 



Ampbisbaena americana, 70 

 Petrei, 70 

 vermicularis, 70 

 Sarea caeca, 71 

 Crocodilusrhombifer, 60, Cuba 



„ americanus, 60 

 Jacare fissipes, 64 

 „ sclerops, 64 

 „ nigra, 65 

 „ punctulata, 65 

 „ vallifrons, 65 

 Caiman trigonatus, 66 

 „ palpebrosus, 66 

 „ gibbiceps, 67 

 Ampbisbaena alba, 70 

 Cadea punctata, 72 [73 



Lepidosternon microcepbalum 

 Cepbalopeltis scutigera, 73 

 Cbirotes lumbricoides, 74 

 Cynisca leucura, 71, Guiana. 



South America. 



East coast. 

 Emys Dorbignii, 22 

 Phrynops Geoffroyana, 21 

 Amphisbaena Darwinii, 71 

 Anops Kingii, 72 

 Lepidosternon phocama, 73 



Galapagos. 

 PTestudo indica, 5. Naturalized 



Locality unknown. 



Emys Kinosternoides, 27 

 ,, annulifer, 27 

 „ Kuhlii, 28 



British Museum, July 1, 1844. 



John Edward Gray. 



