X, D, 2 Taylor: Philippine Lizards 93 



cles; males with a V-shaped series of preanal pores, 3 on each 

 side, inclosing a deep pubic groove; no femoral pores; pores 

 wanting in the female ; transverse plates under the basal phalanx 

 large and well differentiated, 20 under the fourth toe; 12 to 

 14 upper labials; 11 to 12 lower labials. 



Type. — No. R. 1686-7, Bureau of Science collection ; Bunauan, 

 Agusan Province, Mindanao, July, 1913; E. H. Taylor, collector. 



Measurements. — Total length, 122 millimeters ; snout to vent, 

 56; width of head, 13; foreleg, 18; hind leg, 25. The largest 

 specimen taken is only 141 millimeters in length. 



Remarks. — A complete description of this form is hardly 

 necessary, since it agrees in most details with G. agusanensis 

 and G. philippinicus. It differs from the latter in its smaller 

 size and in having 3 instead of 6 preanal pores on each side not 

 arranged in a parallel series as in G. philippinicus. The plates 

 under the basal phalanx are enlarged and clearly differentiated. 



This species is very common at Bunauan, but was not ob- 

 served at Butuan near the coast. More than 40 specimens were 

 taken, all agreeing remarkably well with the type save in the 

 shades of coloration. They were found under rotten logs and 

 usually in pairs. They were dark when found, but quickly 

 became lighter in color when exposed to the sunlight. 



Hemidactylus luzonensis sp. nov. 



Diagnosis. — Digits free and long, with 2 rows of lamellae; 

 distal phalanx clawed, arising from the end of the distal portion 

 of the toe; body with about 16 rows of strong, sharply keeled 

 trihedral tubercles; head much flattened. 



Type. — No. 1774, Bureau of Science collection; Manila, Phil- 

 ippine Islands. 



Description of type. — Adult female ; head noticeably flattened, 

 more than twice as wide as deep, neck especially constricted; 

 rostral squarish and upright, with a slight notch above, and a 

 suture half the width of the scale; a supranasal with a small 

 round internasal; nostril bordered by 2 postnasals, the first 

 labial, the supranasal, and rostral; 11 upper labials; 10 lower 

 labials ; mental almost triangular, followed by 2 pairs of greatly 

 enlarged chin shields, the first pair making a long suture behind 

 the mental; a few slightly enlarged scales border the lower 

 labials and the chin shields ; head scales unequal, those on snout, 

 especially those in front of eye, largest; a few small scattered 

 tubercles on the occiput; ear opening moderate, vertically oval; 

 back with from 16 to 18 irregular rows of trihedral scales, 

 largest on the sides; tail with whorls of spiny tubercles above, 



