4S6 PROCEEDINGS OP THE ACADEMY OF 







eyes ; behind this a blotch with irregular margins, resembling the letter W ; 

 there are also upon the back irregular blotches of a darker grey than the 

 surrounding surface; thighs mottled posteriorly with black and white, varied 

 with grey in front; legs and tarsi with transverse bars of grey, also arms and 

 forearms ; under parts white. 



Dimensions. Length of head 8 lines; greatest breadth 6; length of head 

 and body 1 inch, 8 lines; length of anterior extremities 1 inch; of posterior. 

 3 inches; of thigh 8 lines; of leg 11 ; of foot to extremity of longest toe 11. 



BuFONIDjE. 

 BUFO MELANOGASTER nob. 



Spec. char. Supra-orbitar ridges slightly developed; internal nares of 

 moderate size ; tongue elongate, cordiform, rounded posteriorly ; free for rather 

 more than half of its length posteriorly; color grey with a longitudinal row 

 of subround black spots on either side of the median line; extremities varied 

 with black: under parts yellow marbled with black; length 1 inch, 1 line; of 

 posterior extremities 1 inch, 3 lines; of anterior, 8 lines. 



Habitat. Nicaragua. One specimen. 



Gen. remarks. Most probably the young of a larger animal. 



California. 



SA URIANS. 



Igdaniens Pleurodontes D. & B. 



SCELOPORUS BISEKIATUS nob. 



One specimen. 



BATRACHIANS. 



Urodela Atretoderes D. & B. 



Axaides lugubris Baird. Six specimens three adult, three young. 



The lateral yellow spots are much more distinct in these specimens than in 

 others in our collection. They are of a bright chrome yellow color, and 

 irregularly disposed. In the young specimens, these spots are indistinct. 



Taricha torosus Grans. One specimen, taken near Valiejo, California. 

 Nov., 1855, by Mr. Wright. 

 Batrachoseps attenuatus Gray. Eight specimens six adult, two young. 



Oceania. 

 CHELONIANS. 



Chelonia mydas (young). Seven specimens. In five of these the nuchal 

 plate is bifid. 



Habitat. Bonin Islands. 



SA URIANS. 



VARANIDiE. 



Varanus bivittatus D. & B. 

 One specimen. 

 Habitat. Caspar Straits. 



Scincoidians ou Sauriens Lepidosaures D. S; B. 



Euprepis Wagler. 



Edprepis concolor nob. 



Spec. char. Nasal plate rounded posteriorly, anterior margin curvilinear; 



[Oct. 



