BARBOUR AND COLE: REPTILIA FROM YUCATAN. 149 



8. Anolis beckeri Boulengeb. 



One example from Chichen-Itza. Apparently typical, but in rather poor 

 condition. 



9. Anolis acutirostris Ives. 

 Two examples from Chichen-Itza. 



10. Norops yucatanicus, sp. nov. 



Types. — Three specimens, No. 7036, Mus. Comp. Zobl. Chichen-Itza, 

 Yucatan, Leon J. Cole. 



Habit rather stout ; head about once and a half as long as broad, a very 

 little shorter than the tibia. Scales on head subequal and unicarinate. 

 Occipital scale much smaller than ear opening ; six labials to below the 

 centre of the eye ; ear opening oval and vertical ; about one half the diameter 

 of the eye. Gular appendage moderate, gular scales large and strongly keeled. 

 Enlarged dorsal scales in twelve or thirteen rows. Lateral scales small and 

 keeled. The adpressed hind limb reaches slightly beyond the tip of the 

 snout; digits slightly dilated. Tail just about as long as head and body; 

 covered with equal sharply keeled scales. 



Color : (alcoholic specimen) uniform fawn color. In one specimen there 

 is a dark dorsal band. This band is wider than the region of enlarged scales, 

 and is prolonged half-way down the sides in points. The central area of this 

 band is lighter than the lateral. 



Two specimens are adult and one is young. 



11. Basiliscus vittatus Wiegmann. 



Five young examples and one female with eggs taken April 6, all from 

 Chichen-Itza. There are many specimens in the Museum (M. C. Z. No. 6268) 

 taken by Edw. H. Thompson at Merida. 



12. Laemanctus alticoronatus Cope. 



One example from Chichen-Itza. 



Scales in 55 rows ; Boulenger gives the rows of scales at from 45 to 51, and 

 in L. serratus Cope from 57 to 61 rows. This specimen approaches L. serratus 

 in the rather distinct vertebral serration. There are no white lines on the 

 neck and thighs in this example ; neither do white spots characteristically 

 situated appear. This specimen seems ideally intermediate between the two 

 species, but with only one specimen definite conclusions are unreasonable. 



A description of the colors of the specimen while alive is added from the 

 field notes : — " Under parts light yellowish green with brown markings ; 

 above this on sides a white stripe ; then a reticulated region of darker green, 

 and above this again a yellowish green stripe. Back with alternate blotches 

 of green and black. Head bright pea green. Colors gradually fade towards 

 tail, which becomes grayish brown." 



