1. PHYLLODACTYLUS2. COLEONYX 57 



Distribution. Phyllodactylus unctus has been recorded 

 from Cape San Lucas (the type locality), collected by Mr. 

 Xantusj from Triunfo, by Dr. Streets ; from La Pax, by 

 Messrs. Belding and Townsend; and I have examined speci- 

 mens from Agua Caliente, Miraflores, Santa Anita, and San 

 Jose del Cabo. Its range seems to be confined to the Cape 

 Region or San Lucan Fauna of Lower California, except that 

 it has been found on Ballena Island and Isla Partida near 

 Espiritu Santo Island, in the Gulf of California. 



Habits. Unknown. Mr. Slevin found two specimens 

 under loose bark. 



Family 2. EUBLEPHARID^E 



The members of this family are most closely related to 

 the Gekkonidse or true geckos from which they are distin- 

 guished by procoelian vertebrae and united parietal bones. 

 The clavicle is dilated and loop-shaped proximally. The 

 digits are slender and the claws wholly or partially retractile 

 into a sheath composed of two lateral plates whose superior 

 edges are covered by a third. The eyes are rather large, 

 with movable lids and vertically elongate pupil. 



GENUS 2. Coleonyx 



Coif onyx GRAY, Ann. & Mag. Nat. Hist., Vol. XVI, 184-5, p. 162 (type, 



elegant) . 

 Brachydactylu: PETERS, Mon. Bcrl. Acad., 1863, p. 4-1 (type, mitratus). 



In this genus the lower surface of each digit is provided 

 with a series of small transverse plates. There are no en- 

 larged chin-shields behind the symphyseal plate. The skin 

 is very soft, finely granular, and not attached to the bones of 

 the skull. A small ear-opening is present. Males have a 

 few preanal pores. A single species occurs within the limits 

 of this work. 



