Cope.] ^^^ [April 17, 



aa. Axillary scuta larger, reaching the inguinal ; plastron notched be- 

 hind. 

 Carapace narrower ; bridge not grooved behind ; posterior lobe 



ot plastron longer C. Mrtipes Wagl. 



Carapace wider ; bridge grooved behind ; posterior Idbe of 



plastron very short C. flavescens Agass. 



V. NOTES ON ANOLES. 



AnOLIS AXJREOIiUS, sp. nov. 



Belongs to the group of the genus with round tail and smooth ventral 

 scales. 



The facial ridges are distinct, but obtuse, and soon disappear, and en- 

 close a shallow concavity. The supraorbital scuta are separated on the 

 middle line by one or two rows of scales, and are distinct on the sides of 

 the front, but disappear without reaching the canthal row. They are 

 separated at the facial concavity by six rows of flat, smooth scales. The 

 occipital scale is moderate, equaling the auricular meatus in size, and is 

 separated from the supraorbitals by four rows of scales. The supraoculars 

 form a disc of six scales, which is longer than wide, with a row of four or 

 five scales of intermediate size on the external side. Six rows of loreal 

 scales. Infralabials smaller than the inferior labials, but distinguishable 

 from the mental scales. 



Head rather short and wide, shorter than the tibia (including the heel). 

 The hind limb extended reaches to the end of the muzzle. Digital dila- 

 tations moderate. Fan not large. Lateral scales granular ; a few median 

 doi-sal rows not quite so large as the ventrals, weakly keeled. 



Measurements. M. 



Length of vent 040 



" " auricular meatus Oil 



" axilla 0183 



" foreleg .0193 



" femur OH 



" " tibia (with heel) 013 



" " posterior foot 0154 



Width of head just behind orbits 



This species belongs to the group to which pertain the small species, A. 

 trochilus, roderiguesi, guentheri, bransfordi, etc. I have five specimens of 

 the A. aureolus, and comparison is not difficult with the species named 

 in view of the good descriptions and figures given by Bocourt in the 

 Mission Scientiflque du Mexique. To simplify the comparison I throw it 

 in tabular form : 



a. Series of supraorbital plates separated medially. 



b. Continued as distinct on the front. 



«. Continued to the series of the canthus rostralis. 



