110 



tween anterior end of nostril and tip of snout equals the distance between 

 posterior edge of nostril and anterior border of the orbit (not the eye, which is 

 very much restricted by a dermal capsule as in chamaeleons) ; tympanum 

 vertically oval, about the same diameter as the eye opening; head scales large, 

 swollen and irregular, not distinctly keeled; a cluster of scales on the top of 

 the snout, behind the nostrils and before the eyes largest; a series of six en- 

 larged scales forming a supra-orbital semicircle; a series of three small scales 

 in a mid-line on the occiput, in contact on either side with two very large scales 

 which in turn are in contact laterally with three or four somewhat smaller 

 scales; four upper and four lower labials to the mid-point of the eye; a pro- 

 nounced gular pouch; gular scales much larger than the ventrals, ovate, keeled, 

 not mucronate as the ventrals; scales on the posterior part of the gular pouch 

 smaller than the adjacent gulars; a series of elongate, pointed scales fringing 

 the anterior ventral edge of the pouch; a nuchal crest formed of five or six en- 

 larged pointed scales, grading without a break into a series of dorsal-crest 

 scales which are about one-half as long as the nuchals; the highest nuchal 

 scale slightly longer than the greatest diameter of the tympanum; scales of the 

 back and ventral surface of nearly uniform size; those of the abdomen, smallest, 

 those near the mid-line of the back, largest; dorsal and ventral scales keeled, 

 pointed, imbricating, continuous with smaller scales on the legs; tail covered 

 with somewhat smaller scales, but the keels forming a continuous ridge along 

 the length of the tail; fifteen of these ridges at a point about one-fourth the 

 length of the tail. Limbs slender, rather long; adpressed hind leg reaches 

 shoulder; femoral pores pronounced, eleven to a side. 



Head straw-color, blotched with a slightly darker tone; in life, cream-color 

 and yellow; body blue-gray blotched with brown and a light-green tone; in 

 life, a bright green blotched with brown; no distinct pattern, but the darkest 

 blotches tending to form four transverse bars; gular sac and throat cream- 

 color; ventral surface of abdomen and appendages suffused with a brownish 

 tone. 



Measurements. — Total length, 511 mm.; head and body length, 128; fore leg 

 from axilla, 62.5; hind leg from vent, 81; greatest width of head, 22. 



Remarks. — This species is closely allied to Enyalioides festae 

 Peracca from which it differs in its larger head-scales and gular 

 sac, also in certain differences in the scutation of the digits and 

 head. I would not hesitate to refer it to the genus Enyalioides 

 were it not that this procedure would require a considerable 

 modification of our present conceptions of that genus. 



Phyllodactylus magister, new species. 



Diagnosis. — A large Phyllodactylus very closely allied to Phyllo- 

 dactylus tuber culosus, without tubercles on the reproduced tail; a 

 series of sixteen longitudinal rows of enlarged keeled tubercles on 

 the back; occiput covered with granules intermixed with tubercles; 

 abdominal scales in thirty-one and sixty-two rows; differing from 

 Phyllodactylus tuberculosus in its proportionately smaller tubercles 

 of the back, its smaller post-mentals, and its wider scutes on the 

 median ventral surface of the tail, also in the different arrange- 

 ment of the distal lamellae on the ventral surfaces of the toes, 

 and in the somewhat different coloration. 



Distribution. — Arid valleys of the Chinchipe and Marafion 

 from Perico on the north to Bellavista on the south, extending 

 westward to Tamboa in the province of Cajamarca, Peru. 



