GYMNODACTYLUS 51 



fifty longitudinal rows; preanal region with a large area of 

 much-enlarged scales with two or three rows of enlarged femoral 

 scales; males and females with preanal and femoral pores; 

 preanal pores in a broadly angular series, eight to eleven alto- 

 gether; femoral pores widely separated from the former, eight 

 to eleven on each side ; those in females much smaller but visible ; 

 digits depressed basally and compressed, the remaining part each 

 with a well-defined crook ; subdigital lamellse well defined, twenty- 

 five to twenty-seven under longest toe; tail rather cylindrical, 

 tapering, no transverse plates below. 



Color in life. — Grayish above with broad, irregular, dark 

 brown crossbands ; tail above annulated with broad, dark brown 

 to black rings, separated by narrow, cream-white to grayish 

 brown bands; a broad brown band from snout through eye to 

 occiput; a lighter line above and below this; upper light line 

 usually curving and meeting its fellow on occiput ; labials darker, 

 spotted with yellowish; younger specimens much darker than 

 older specimens, with markings more strongly contrasted. 



Measurements of Gymnodactylus agusanensis Taylor. No. 639, 

 E. H. Taylor collection. 



mm. 



Total length 220 



Snout to vent 106 



Width of head 23 



Length of head 29 



Foreleg 40 



Hind leg 55 



Remarks. — This species is related to Gymnodactylus mar- 

 moratus but is much larger. The presence of pores in the female 

 and the arrangement of the preanal pores in a broadly angular 

 series (not inclosing a longitudinal groove), together with a 

 number of less-obvious differences, clearly differentiate it from 

 G. marmoratus. From G. mimikamis, another related species, 

 it differs in having small scales below the tail instead of trans- 

 verse plates; the color and markings are essentially different. 

 The arrangement of the preanal and femoral pores is, however, 

 similar. 



Known only from the type locality, where it was rare. A 

 colony was found in a pile of rotting logs. One specimen was 

 found in a hole in a tree 2 meters from the ground. When first 

 taken the colors were much more strongly contrasted than later 

 when exposed to light. 



