SYSTEMATIC ACCOUNT OF THE SPECIES. 143 



nuchal and anterior dorsal fold, capable, however, of more extended voluntary 

 elevation in life; Umbs medium short, digits well dilated, the adpressed hind 

 limb reaches to the posterior border of the orbit; about sixteen lamellae under 

 phalanges II and III of the fourth toe; tail rather long, strongly compressed 

 with very indistinct verticils, separated by about five rows of scales; the limit- 

 ing rows but slightly enlarged; no "fin" upon tail; postanal scales sUghtly 

 enlarged. 



Colour (in Ufe) : — Very \^aried in the fully adults, usually black or brown 

 more or less uniform, pale below; the dewlap skin brick-red with black scales 

 and a yellow margin. In young lizards there is generally either a Ught band 

 along the back or a series of more or less distinct separated or confluent pale 

 rhombic markings. 



Dimensions: — Total length 165 mm. 



Tip of snout to vent 61 mm. 



Vent to tip of tail 104 nmi. 



Width of head 10.5 mm. 



Fore limb 25.5 mm. 



Hind limb 46 mm. 



In this species as well as the two following the males have a markedly 

 developed, erectile nuchal fold which is extended simultaneously with the 

 expansion of the dewlap. 



This is the common Uzard of the roadside fences and garden walls. It is 

 excessively abundant, one of the commonest lizards in the world where it occurs. 

 It is usually found in the lowlands and it is very rare or entirely absent in the 

 more thickly forested areas. It is found all over Cuba but far more abundantly 

 in the Provinces of Havana and Pinar del Rio than elsewhere for here cultiva- 

 tion has cleared the face of the countryside more than in the less densely popu- 

 lated Provinces of Camaguey and Oriente. 



Anolis sagrei occiirs upon the hot dry coastal plain near Kmgston, Jamaica, 

 whence the U. S. N. M. has received specimens some of which are now in the 

 M. C. Z. The senior author did not find it when collecting about Kingston 

 in 1909 and it may have been accidentally introduced. It is recorded by Boul- 

 enger from BeUze and Caracas but these records are very unlikely and the 

 specimens should be compared with topotypes from Cuba. In case they are 

 the same further collecting is needed to show that we have not to deal with 

 mistakes in labeUng. The Belize record is possible but improbable, the Caracas 

 record seemingly wholly impossible. 



