vertebrata from madagascar. 483 



Iguanidae. 



12. HoPLURUS SEBAE Fitzinger, 



Of this species, perhaps the best known of its genus, there are two 

 examples from Miandrivazo, taken in June 1915. 



13. HoPLURUS CYCLURUS (Merrem). 



A well-preserved adult from 20 kilometers northeast of Tulear, 

 and another from Tulear itself. In the first mentioned example the 

 anterior border of the ear is beset with three blunt scales forming a 

 sort of coarse denticulation. The posterior aspects of the spinous 

 caudals have hardly any trace of the serrations spoken of by Boulenger. 

 There is a conspicuous dark collar across the hinder nape and a faint 

 light middorsal line, otherwise the back is uniform slate color with a 

 few scattered light spots. 



14. HoPLURUS FiERiNENSis Grandidier. 



Two examples from the Eastern Forest. Compared with the speci- 

 mens of H. grandidieri Mocquard received from the Senckenbergian 

 Museum these examples seem to be typical, for they differ from H. 

 grandidieri in just the characters used in the separation (Bull. Soc. 

 philom., 1900, ser. 9, 2, p. 105). 



15, Chalarodon madagascariensis Peters. 



An enormous series from the semidesert country about Tulear, 

 taken in August. Beyond various slight variations in color the series 

 is remarkably uniform in scale-characters. This fine suite was espe- 

 cially welcome since this monotypic genus is confined to the little- 

 visited southern district of Marlagascar and is represented in but few 

 museums. 



Gerrhosauridae. 



16. ZoNOSAURUS ORNATUS (Gray). 



Two examples from the Eastern Forest, between Tamatave and 

 Tananarive seem to be quite typical. 



