490 PROCEEDINGS OF THE ACADEMY OF 



Habitat. Sidney. One specimen. 



Lygosoma t^niolatum D. & B. 



Syn. Lacerta tceniolata Shaw, Gen. Zool. torn. 3, p. 239. 



Sj>ec. char. Eyelid scaly, two frontoparietals ; nasals in contact ; fronto- 

 nasals separate ; ground color of back and upper part of tail yellowish-brown, 

 with a longitudinal band of black along the middle line of the back, commencing 

 at the occiput, and lost upon the tail, bordered with white ; a black lateral 

 band ou each side, commencing at the nostrils, between which and the eye it is 

 narrow, and passing along the temples and sides of the body, as far as the origin 

 of the tail, where it is continuous with a very narrow black band extending 

 about an inch upon the tail. 



B ATRAC HI A. 



Hylid.e. 



Hvla cyanea Daud. One specimen. Sidney (young). Taken Dec, 1853. 



Loo-Choo. 



SA URIA. 



Sauriens Eonotes D. & B. 



Sub. fam. Iguaniens Acrodontes. 



Gen. Diploderma nob. 



Gen. char'. Head pyramido-triangular, covered with polygonal carinated 

 scales of unequal size ; nostrils lateral in a large plate near its upper border ; 

 a small nuchal crest ; no external ear openings ; body covered with strongly 

 carinated scales, many of which are quite large ; those upon the anterior and 

 lateral parts of the body quite small ; tail long and slender, cyclo-tetragonal 

 at base covered with carinated scales, not verticillate ; no femoral or anal 

 pores; bodv slender, compressed ; extremities slender, fiogers and toes 5 5: 

 tongue slender, adherent, notched posteriorly ; 40 teeth in the upper jaw ; five 

 small incisors, two canines on each side, the second more robust and slightly 

 longer than the first; the remaining teeth tricuspid, with obtuse summits, the 

 five first smaller than the others ; 34 lower, two canines of about equal length 

 The teeth, with the exception of the Ianiaries and intermaxillaries, are all very 

 closely in contact, inclining inward, and firmly imbedded in the jaw, and hot: 

 along its border ; no palatine teeth. 



Diploderma polygonatum nob. 



Description. A longitudinal row of carinated scales upon the snout behind 

 the nostril ; frontal region depressed ; supraciliary ridges low, separated from 

 each other by two rows of small scales, and communicating with the longi- 

 tudinal ridge above mentioned by two or three scales on each side ; supra- 

 ocular regions convex ; no well marked occipital scale ; seven superior labials ; 

 a nuchal, not elevated crest ; no transverse gular fold ; neck slightly folded : 

 body slender, covered with carinated scales, some of which, here and there 

 interspersed, are much larger than the others ; the axilla, and that part of 

 the body immediately within the arm and above it, covered with very small 

 scales ; this patch of small scales contrasting strongly with the larger scales 

 upon the back and sides ; chin and throat covered with strongly carinated 

 scales ; scales of abdomen triangular, strongly unicarinate, the carina extend- 

 ing the whole length of the scale ; upper surface of arms and extremities 

 covered with strongly carinated scales ; those on the inner and anterior sur- 

 face of the arm smaller than those upon the corresponding surface of the 

 forearm ; posterior extremities covered with strongly carinated scales ; third 



[Oct. 



