Vlll 



INTRODUCTION. 





Emys reticular ia, 25 

 „ macrocephala, 26 

 „ fioridana, 26 

 „ hieroglypbica, 26 

 „ guttata, 26 

 „ picta, 27 

 „ Bellii, 27 

 Malaclemys concentrica, 28 

 Cistudo Carolina, 30 

 Kinostemon 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 tubulala, 5, W. Indies 

 ?Kinyxys Homeana, 11 

 Emys scabra, 20 



„ rugosa, 24, W. Indies. 

 „ decussata,24, W. Indies 

 ? „ vermiculata, 25 

 Kinostemon 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 

 affinis, 41 

 *?Pbrynops Geoffroyana, 41 

 riifipes, 4 1 



5) 

 5> 



55 



55 

 55 

 55 

 55 



British Museum, July 1, 1844. 



PPhrynops Bellii, 42 

 ? „ Miliusii, 42 



Hydromedusa Maximiliana, 44 



„ flavilabris, 44 



Chelys Matamata, 44 

 Peltocepbalus Tracaxa, 45 

 Podocnemis expansa, 45 



„ Dumeriliana, 45 



Ampbisbaena americana, 70 

 „ Petrei, 70 



„ vermicularis, 70 



Sarea ca?ca, 71 

 Crocodilusrhombifer, 60, Cuba 



„ americanus, 60 

 Jacare fissipes, 64 

 „ sclerops, 64 

 „ nigra, 65 

 „ punctulata, 65 

 „ vallifrons, 65 

 Caiman trigonatus, 66 

 „ palpebrosus, 66 

 „ gibbiceps, 67 

 Ampliisbsiia alba, 70 

 Cadea punctata, 72 [73 



Lepidosternon microcepbalum 

 Cepbalopeltis scutigera, 73 

 Chirotes lumbricoides, 74 

 Cynisca leucura, 71, Guiana. 



South America. 



East coast. 

 Emys Dorbignii, 22 

 Pbrynops Geoffroyana, 21 

 Ampbisbaena Darwinii, 71 

 Anops Kingii, 72 

 Lepidosternon phoccena, 73 



Galapagos. 

 PTestudo indica, 5. Naturalized 



Locality unknown. 



Emys Kinosternoides, 27 

 „ annuliter, 27 

 „ Kuhlii, 28 



John Edward Gray. 



