226 LIZARDS OF THE PHILIPPINE ISLANDS 



Variation. — In the specimens examined very little variation 

 was evident save in the number of lamellae under the toes. 



Remarks. — I found this species abundant along the upper 

 Agusan River and in the sunken lake region of central eastern 

 Mindanao. It was conspicuous by its brilliant colors in the 

 tall grass (tigbao) that bordered the lakes and streams, but in 

 this habitat it was almost impossible to capture it. From the 

 other Philippine species of Emoia it is easily distinguished by 

 the color of the tail, the presence of the small interparietal, and 

 the large number of subdigital lamellae. 



EMOIA ATROCOSTATUM (Lesson) 

 Scincus atrocostatus Lesson, Voy. Coquille, Zool. 2 (1830) 50, pi. 4, 



fig. 3. 

 Mocoa cumingii Gray, Cat. Liz. (1845) 81. 

 Mabouya atrocostatus Gray, Cat. Liz. (1845) 95. 

 Eumeces freycinetii DuMERiL and BiBRON, Erp. Gen. 5 (1839) 648. 

 Euprepes hitseniatus Peters, Mon. Berl. Ak. (1864) 53. 

 Euprepes (Mabuya) cumingii Peters, Mon. Berl. Ak. (1867) 20, 

 Euprepes (Mabuia) microstictus Peters, Mon. Berl. Ak. (1874) 373. 

 Euprepes {Mabuya) atrocostatus Peters and Doria, Ann. Mus. Genova 



13 (1878) 358. 

 Mabuia erdoniana Stoliczka, Journ, As. Soc. Bengal (1870) 172. 

 Eumeces serratus Fischer, Abh. Natur. Ver. Hamburg 9 (1886) pi. 



2, fig. 3. 

 Lygosoma cerdonianum Boulenger, Cat. Liz. Brit. Mus. 3 (1887) 300. 

 Eumeces singaporensis Steindachner, Sitzb. Ak. Wien I 62 (1870) 



341, pi. 4, fig. 2. 

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



295; Rept. and Batr. Mai. Pen. (1912) 94, 95; Annandale, Journ. 



As. Soc. Bengal I 2 (1905) 147; DE RooiJ, Rept. Indo-Aust. Arch. 1 



(1915) 259. 

 Emoia atrocostatum Barbour, Mem. Mus. Comp. Zool. Harvard Coll. 



44 (1912) 94. 



Description of species. — (From No. 880, Bureau of Science 

 collection; collected at Bantayan, Cebu, by L. E. Griffin.) Snout 

 long and obtusely pointed ; portion of rostral visible above about 

 equal to its height; small, elongate supranasals present, widely 

 separated, bordering nostril; frontonasal broader than long, 

 forming a broad suture with rostral, barely in contact with 

 frontal; prefrontals large, narrowly separated; frontal small, 

 truncate behind, about equal in length to the single fronto- 

 parietal, but slightly smaller; four supraoculars, second largest; 

 frontal in contact with two supraoculars; interparietal very 

 small; parietals forming a suture behind latter; a pair of 

 nuchals bordered by slightly enlarged body scales ; nasal divided, 

 the nostril surrounded by three scales ; two f renals, second much 



