216 LIZARDS OF THE PHILIPPINE ISLANDS 



parison; it is usually shorter, with narrower head and body, the 

 median streak brilliant golden yellow, and the tail brownish 

 yellow with the markings almost totally disappearing. 



Only two specimens of the present subspecies were taken, both 

 in the same immediate locality on Mount Canlaon. 



Genus SIAPHOS Gray 



Siaphos Gray, Cat. Liz. (1845) 72, 88. 



Lygosoma, part., Boulenger, Cat. Liz. Brit. Mus. 3 (1887) 223. 



Legs only very moderately developed; lower eyelid scaly or 

 with a transparent disk; ear covered with scales or tympanum 

 unsealed; no supranasals; nuchals present (in Philippine 

 species) ; prefrontals either well or moderately developed, some- 

 times wanting; frontal not broader than supraocular region; 

 species small. 



Four species are known to occur in the Philippines. 



Key to the Philippine species of Siaphos Gray. 



a\ Lower eyelid with a transparent disk. 

 b^. Prefrontals present, moderately large. 



c^. Auricular opening distinct; limbs barely touch when adpressed, 

 olive brown above with a broad, darker, lateral stripe. 



S. kempi Taylor (p. 216). 

 c\ Auricular opening hidden; limbs usually touching when adpressed; 

 light brown with 4 blackish stripes on back. 



S. infralineolatum (Giinther) (p. 218). 



b.^ Prefrontals wanting. Auricular opening large; limbs fail to touch 



when adpressed; olive brown above with a median brownish stripe, 



and 2 broad, brown, lateral stripes... S. auriculatum, Taylor (p. 221). 



a^ Lower eyelid scaly; auricular opening concealed; 4 blackish stripes 



on body S. quadrivittatum (Peters) (p. 223). 



SIAPHOS KEMPI Taylor 



Siaphos kempi Taylor, Philip. Journ. Sci. 14 (1919) 118. 



Description of species. — (From the type, No. 2,006 E. H. 

 Taylor collection; collected at Lake Naujan, Mindoro, April 23, 

 1916, by E. H. Taylor.) Head short; snout blunt, not especially 

 depressed; rostral covering tip of snout, the part visible above 

 much less than depth of snout at posterior border of rostral; 

 no supranasals ; frontonasal large, the suture with rostral equal 

 to or smaller than that with nasal and slightly larger than that 

 with frontal; prefrontals much reduced, separated, not in con- 

 tact with first supraocular; frontal moderate, about equal to 

 frontoparietal in length, as long as its distance from end of snout, 

 in contact with two supraoculars and first superciliary; fronto- 



