C<u CtlC- 



PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. XI, No. 17, pp. 395-398 EJ^ember 17, 1921 



_ 



* iw n * 





XVII 



PRELIMINARY DIAGNOSES OF MORE NEW SPECIES OF 



REPTILES FROM ISLANDS IN THE GULF 



OF CALIFORNIA, MEXICO 



By 

 JOHN VAN DENBURGH 



Curator of the Department of Herpetology 



AND 

 JOSEPH R. SLEVIN 



Assistant Curator of the Department of Herpetology 



A number of new reptiles secured by the Academy's expedition 

 to the Gulf of California were described in these Proceedings in 

 July of this year. (Vol. XI, 1921, pp. 95-98). Preliminary 

 diagnoses of several others are given in the following pages. 



Uta nolascensis, new species 



Diagnosis. — A member of the U. stansburiana group. Size 

 small. Dorsal scales very small but imbricate and keeled. 

 Caudals keeled and mucronate. Color above grayish or light 

 blue becoming yellowish or olive on the head and tail, without 

 any dark or light markings except sometimes a few scattered pale 

 blue dots on single scales. A large blackish blue blotch behind 

 axilla and often another in front of shoulder. Jaws and side of 

 head sometimes yellowish. Lower surfaces light indigo through- 

 out or whitish on feet, distal part of tail, and middle of chest 

 and belly. Femoral pores 13 to 16, average in twenty thighs 

 14.5. 



