2 BULLETIN : MUSEUM OF COMPAEATIVE ZOOLOGY. 



tail one-seventh longer than the body ; slender, round, tapering regular!}-. 

 Head scales granular, crown from the eyes backward with numerous minute 

 tubercular scales. Rostral large, wider than high, joined on the upper ed^e 

 by two nasals and a smaller subi^uadrangular internasal. Nostril ed"-ed by the 

 rostral, nasal, a small scale joining the latter, four or five granules, and the first 

 labial. Labials thirteen ; lower labials eleven; mental large, pentagonal, 

 wedged between two large chin shields, which latter meet for a considerable 

 distance behind the angle of the mental. Smaller chin shields decrease in size 

 backward, from the anterior, at the lower edges of the labials. Throat with 

 granules. Back covered with granules, in which there are twenty-four longi- 

 tudinal series of small tubercular scales, of which those near the thighs and 

 tail are more elongate, and rise in a low blunt point or short depressed keel. 

 Abdominal scales larger, flat, smooth, imbricate, rounded on the free edges, in 

 twenty-eight longitudinal rows. Upper caudal scales similar to those of the 

 liinder portion of the back ; scales of the lower surfaces of the tail , flat, smooth, 

 irregular in shape and in width, many of them reaching across the entire lower 

 side. 



Light grayish brown with transverse bands of darker, ■white below. Top of 

 head light, with small streaks and spots of brown ; a dark band with darker 

 edges from the end of the snout through the eye above the ear behind the occi- 

 put crossing the nape ; a similar band across the space between the shoulders, 

 three across the body between the arms and the legs, and one across the 

 space between the hips. Similar bands cross the tail, where they are darker, 

 and the difference in depth of color in edges and median portions disappears. 

 Name in honor of Mr. E. A. C. Olive. 



This form differs from G. pelagkus in tubercles, chin shields, abdominal 

 scales and markings. 



Queensland, near Cooktown ; Mr. Olive. 



Phyllurus cornutus Ogil. 



P. lirhenosns GiJNT. 



In Mr. Olive's collection there is a specimen rather smaller than the type 

 and exhibiting some variation from the original description. The transverse 

 bands of brownish on the tail completely encircle that organ, and are quite as 

 distinct on the lower side as on the upper. On the median portion of the ven- 

 tral surface of the tail the five white interspaces are much wider and whiter 

 than the white blotches on the back of the body. The diameter of the eye is 

 half the length of the snout. The conical tubercles on the keel at the sides of 

 the abdomen readily distinguish this form from P. platurus, as aJso the scal- 

 lops. The type of P. cornutus was about eight and one-fourth inches in 

 length, that of P. lichenosus was about five and one-eighth, a present specimen 

 is intermediate between the two, and, as it appears to me, conclusively estab- 

 lishes the identity of these species. 



