362 teiid,t:. 



Head moderate, Nostril between the two nasals. Parietals five, 

 narrow ; four supraoculars ; five or six supraciliaries ; no freno- 

 orbital : median gular scales gradually enlarged ; mesoptycliium 

 with three or four rows of enlarged scales, which are a little larger 

 than the largest gulars, separated from the free edge of the collar by 

 four or five rows of small granules. Dorsal scales minutely granular, 

 smooth. Ventral plates in ten or twelve longitudinal and thirty- 

 eight to forty transverse series*. Three large pr^anals, forming a 

 triangle. Brachial and postbrachial plates small, without strongly 

 enlarged series ; two or three rows of autebrachials ; forearm 

 entirely granular interiorly. Femoral plates in ten to twelve rows, 

 one of which is largo ; tibials in three or four rows, outer very large. 

 Femoral pores twenty-nine to thirty-five. Male with a spine on 

 each side of the vent. Caudal scales oblique, with straight keels, 

 not distinctly pointed posteriorly. Olive above, sides with large 

 round bluish-white spots ; hinder side of thigh with a whitish 

 longitudinal band ; lower surface of head and body brownish. 



millim. millim. 



Total length -i'do From end of snout to 



Head 32 fore limb 52 



Width of head .... 21 From end of snout to 



From end of snout to vent 145 



interparietal plate 22 Fore limb 54 



Width at posterior Hind limb 98 



corners of supra- Tail 290 



ocular region .... 14 



Guianas; Trinidad. 

 a,b.d. ? 



2. Cnemidophorus espeuti. (Plate XIX.) 



Head moderate. Nostril between the two nasals. Parietals five ; 

 four supraoculars ; five supraciliaries ; no frenoorbital ; anterior 

 gular scales subequal, without enlarged medians ; mesoptychial 

 scales gradually increasing in size, those of the last row largo, 

 separated from the free edge of the coUar by one or two rows of 

 granules. Dorsal scales small, granular, smooth. Ventral plates in 

 eight longitudinal and thirty-two transverse series. Three large 

 prteanal scales forming a triangle. An anterior row of large 

 brachials, followed by several smaller ones, passing into the post- 

 brachials ; antebrachials large, continuous with the brachials, in 

 two rows, the outer largest and continued to the hand ; forearm 

 entirely granular inferiorly. Femorals in six or seven rows, one of 

 which is large ; tibials in two or three rows, the outer very large 

 and composed of six plates, the other small and irregular. Femoral 

 pores nineteen. Caudal scales oblique, with strong straight keels, 



* Counting i'rom the collar. 



