224 LIZARDS OF THE PHILIPPINE ISLANDS 



Legs well developed, pentadactyl, overlapping when adpressed ; 

 lower eyelid with a transparent disk ; tympanum distinct ; supra- 

 nasals present; rostral forming a suture with frontonasal: 

 frontal not broader than supraocular region; preanals not or 

 scarcely enlarged ; digits with large number of lamellse below. 



Three species of Emoia are known from the Philippines. 



Key to the Philippine species of Emoia Gray. 



a\ Interparietal distinct. 



6\ Lamellas under fourth toe, 60 to 62; scales around body, 26; body 

 with greenish yellow stripes; tail red.. E. ruficauda Taylor (p. 224). 

 6^ Lamellae under fourth toe, 35 to 38; scale rows about body, 30 to 40; 

 body grayish mottled with black.. E. atrocostatiim (Lesson) (p. 226). 

 a'. Interparietal fused with frontoparietal. Lamellse under fourth toe, 40 

 to 60; scales around body, 26 to 36; body with greenish yellow 

 stripes; tail azure blue E. cyanurum (Lesson) (p. 228). 



The two species listed last are terrestrial in habit and widely 

 distributed. They are found near sea'coasts, where thej^ feed 

 largely on small crabs and other marine crustaceans. Emoia 

 atrocostatum is almost aquatic, and not infrequently will enter 

 the sea water and dive. This species swims well and probably 

 can thus go long distances. I have found specimens on floating 

 logs a short distance from land. Emoia ruficauda is arboreal in 

 habit, and feeds on small insects in trees and in the coarse, high, 

 swamp grass. It is rarely seen on the ground. 



EMOIA RUFICAUDA Taylor 



Plate 18, fig. 2 



Emoia ruficauda Taylor, Philip. Journ. Sci. § D 10 (1915) 98. 



Description of species. — (Described from four cotype speci- 

 mens in E. H. Taylor collection, from Bunawan, Agusan.) 

 Head slightly distinct from neck; snout bluntly pointed; rostral 

 forming a broad suture with frontonasal; latter broader than 

 long, in contact with frontal; supranasals present, small, elon- 

 gate, bordering nostril; prefrontals separated, large, barely in 

 contact with first supraocular; frontal about as long as fronto- 

 parietal, not as wide as supraocular region, in contact with two 

 supraoculars; frontoparietal single, larger than frontal; inter- 

 parietal distinct, small; parietals forming a suture behind lat- 

 ter, bordered behind by a pair of nuchals and a pair of ver^'' 

 much enlarged elongate temporals; nasal divided; nostril sur- 

 rounded by three scales ; two f renals, second largest and widest ; 

 three preoculars, the median largest; four much-enlarged tem- 

 porals; four supraoculars; seven superciliaries ; seven upper 



