LIST 6f illustrations. XI 



Figs. 81-84. Amphisbaena cuhana 278 



Figs. 85-86. Epicrates anguli/er. 87, same species 278 



Pigs. 88-90. Tropidophis pardalis. 91-92, same species; 90 represents the color 

 pattern and shape of tail viewed from the side; 91 shows the color pattern 

 across the middle of the body; 92 shows the cross section of the body at 



the middle 280 



Figs. 93-95. Tropidophu semidnctus. 96-97 represent color pattern and 



section through middle of body of same specimen 281 



Figs. 98-101. Tretanorhinus variabilis. 101 shows the color pattern at about 



the middle of the body 282 



Figs. 102-104. Alsophis anguli/er 282 



Figs. 105-107. Leimadophis andreae 284 



Figs. 108-111. Arrhylon taeniahm. 108 represents color pattern at about the 

 middle of the body. 112-115, same species. 112 represents color pattern 



at about middle of body 287 



Figs. 116-119. Arrhyton rittatum. 119 represents color pattern at about the 



middle of body 288 



Figs. 120-121. Crocodylus acutus. 122 represents the anterior dorsal scutel- 



lation of the same individual 289 



Fig. 123. Crocodylus rhombifer. Represents anterior portion of dorsal scuta . . 290 



Figs. 124-125. Pseudemys palustris 290 



Figs. 126-128. Pseudemys palustris 29] 



Figs. 1-11.— 1. Dorsal view of skull of Desmognathus fusca 3 X nat. size. A, 

 Atlas; ExO, Exoccipital bone (the occipito-petrosal of Wiedersheim); F, 

 Frontal bone; M, Maxillary bone; iV.4, Nares; N, Nasal bone; P, Parietal 

 bone; PM, Premaxillary bone; PMF, Premaxillary fontanelle; Q, Quadrate 

 bone; Sq, Squamosal bone. 2. Ventral view of same, 3 X nat. size (teeth 

 somewhat diagrammatic); Os, Orbitosphenoid bone; PaS, Parasphenoid bone; 

 St, Stapes; T', Vomer; other letters as before. 3. Lateral view of same,' 

 3 X nat. size; letters as before. 4. A section of the skull of Dem.ognathus 

 quadramaculata taken just anterior to the internal nares, 3.5 X nat. size. 

 f, Frontal; m, Maxillarj-; n, Nasal; 7ia, Nasal passage, which is indicated by 

 shading; p, Pre-maxillary; v, Vomero-palatine. 5. Dorsal Aiew of a female 

 Leurognathus marmorata, 3.2 X nat. size. 6. Ventral \dew of same, 

 3.2 X nat. size. Tlie internal nares are blackened, and the position of the 

 actual choanae in tlie entire head is indicated by a ring of dots. 7. Lateral 

 view of same, 3.2 X nat. size. 8. A section of the skull of the same taken just 

 anterior to tlie internal nares, 3.5 X nat. size. Letters as in fig. 4. 9. Dor- 

 sal view of skull of Spelerpes ruber, 3 X nat. size. Od, Odontoid process of 

 atlas; PF, Prefrontal bone; other letters as before. 10. Ventral ^•iew of same. 

 3 X nat. size. Letters as before. (Teeth somewhat diagrammatic.) 11 



Lateral view of same, 3 X nat. size. Letters as before 396 



Range of Desmognathus quadrimaculata 402 



Ranges of 1, Desmognathus fusca fusca; 2, D.f.aunculata; 3, Leurognathus mar- 

 morata .^r 



-, 405 



Kanges of Desmognathus brimleyorum; 2, D. fusca auricular; ?,, D . fusca f usee ; 



4, D. monticola ' ^qq 



Ranges of 1, Desmognathus ochrophaea ochrophaea; 2, D. ochrophaea carolinensis . 418 



Encope annectans ^02 



Encope platytata " ^gr 



Encope megatrema. Sect ion of lunule to show inclined faces 496 



