DASIA 201 



Euprepes olivaceus Gunther, Kept. Brit. India (1864) 80, pi. 10, fig. 



D; Theobald, Cat. Kept. Brit. India (1876) 51. 

 Euprepes (Tiliqua) semicinctus Peters, Mon. Berl. Ak. (1867) 21. 

 Tiliqua olivacea Stoliczka, Journ, As. Soc. Bengal 39 (1870) 172. 

 Lygosoma olivaceum Boulenger, Cat. Liz. Brit. Mus. 3 (1887) 251; 



Fauna Brit. India, Rept. (1890) 197; de Rooij, Rept. Indo-Aust. 



Arch. 1 (1915) 203, fig. 78. 

 Mabuia saravacensis Bartlett, Croc. Liz. Borneo (1895) 94. 

 Dasia olivaceum Barbour, Mem. Mus. Comp. Zool. Harvard Coll. 44 



(1912) 91. 

 Dasia semicincta Taylor, Philip. Journ. Sci. § D 10 (1915) 104. 

 Dasia griffini Taylor, Philip. Journ. Sci. § D 10 (1915) 104. 



I recognize two forms of Dasia olivaceum in the Philippine 

 fauna worthy of subspecific rank. In a former paper both were 

 given specific rank. This I now beHeve is not warranted. 



Key to the subspecies of Dasia olivaceum (Gray). 



a\ Scales in 30 rows ; young coal black above with numerous brilliant orange 

 yellow bars crossing back from tip of snout to tip of tail, belly 

 canary yellow. (Regenerated tail red.) Adult olive brown with 6 

 lateral black bars, each scale with a whitish ocellus. 



D. 0. semicincta (Peters) (p. 201). 

 a'. Scales in 26 rows (young?) ; adult olive to greenish with a series of 15 

 transverse bars beginning midway on side; belly bluish. 



D. 0. griffini Taylor (p. 204). 



It is not improbable that the second form is equivalent to 

 Tiliqua grisea Gray. 



DASIA OLIVACEUM SEMICINCTA (Peters) 

 Plate 19, fig. 2 



Euprepes (Tiliqua) semicinctus Peters, Mon. Berl. Ak. (1867) 21. 

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



251. 

 Dasia semicincta Taylor, Philip. Journ. Sci. § D 10 (1915) 104, pi. 1, 



figs. 7, 8. 



Description of subspecies. — (From No. 685, E. H. Taylor col- 

 lection; collected at Bunawan, Agusan, 1913, by E. H. Taylor.) 

 Head narrowed much in front of eyes, rounding across canthus 

 rostralis; rostral large, high, its upper outline circular; supra- 

 nasals present, in contact medially, slightly shorter than nasals; 

 frontonasal large, slightly broader than long, in contact with 

 anterior f renal, supranasals, prefrontals, and frontal; prefron- 

 tals touch two frenals, first superciliary, and first supraocular, 

 not in contact with each other ; frontal much narrower than su- 

 praocular region, twice as long as wide, extending more ante- 

 riorly than first supraocular, in contact with two supraoculars ; 

 frontoparietals separate, forming a suture more than half their 



