b'b NORTH AMERICAN FAUNA. 



satisfactorily separating the various forms which naturally group 

 themselves around Ctcno.saura 1cren. They are therefore left under 

 that general name for the present, the writer hoping some day to be 

 able to review the whole genus. The chief difficulty now lies in the 

 lack of typical specimens of C. teres from Tampico and from the east- 

 ern coast of Mexico generally, and until a series of full-grown speci- 

 mens of both sexes is obtained from that region it will be futile to 

 attempt to straighten out the nomenclature of these lizards. As far as 

 I can make out from my defective material the Tres Marias and Isabel 

 specimens differ sufficiently from specimens from Colima and Telmaii- 

 tepec to warrant their subspecific recognition, but whether identical 

 with the Mazatlau form or not I am not able to say. There are certainly 

 several pretty well defined races of this species; but more adult speci- 

 mens and a direct comparison with the types of many of the old names 

 in various foreign museums will be necessary before the intricate ques- 

 tions involved can be settled. 



[The females were burrowing in the gravel in dry washes and flats 

 on the islands the last half of May. The burrows were from 2 to 3 

 or 4 feet deep, and after the eggs had been deposited at the lower 

 end, the female scraped in loose gravel until the hole was filled, and 

 frequently raised a little mound over the entrance. K. W. X.j 



Uta latei alls Boulenger. 



Mr. Xelson remarks that this species lives on stones and driftwood 

 near the border of the woods along the sea beaches. 



Uta lateralis was based by Bouleuger in 1883 upon specimens from 

 the Tres Marias and from Presidio, near Ma/atlan, collected by Forrer, 

 and specimens from both localities are designated as 'types' in the 

 * Catalogue of Lizards in the British Museum.' 



