3. ANOLIS. 17 



tt Tail with a dorsal series of enlarged scales. 



Supraorbital semicircles separated by three or 



four series of scales 39. pohjlepis^ p. 52. 



Supraorbital semicircles separated by one series 



of scales 41 . pidchripes, p. 53 



** Head not longer than the tibia, 



Supi'aorbital semicircles separated by five series 



of scales 58. pachijims, p. 63. 



/3. All dorsal scales perfectly smooth. 



Head as long as the tibia ; npper head-scales 



smooth 51. fasciatus, p. 51). 



Head a little longer than the tibia ; u^Dper 



head-scales bi- or tri-carinate 52. gemmosus, p. 60. 



h. Tibia not longer than the distance between the end of the 

 snout and the posterior border of the orbit. 



a. Ventral scales smooth or indistinctly keeled. 



* Enlarged supraocular scales keeled. 



Dorsal scales smooth 53. andianus, p. 60. 



Dorsal scales keeled 5-1. squamalatus, 



[p. 61. 

 ** Supraocular scales not keeled. 



t Scales on upper surface of arm pluricarinate. 



Ear-opening very small 56. microtus, p. 62. 



ft Scales on upper surface of arm smooth or uni- 

 carinate. 



Dorsal scales flat and smooth ; tail without 



upper ridge, nearly twice as long as head 



and body 57. insir/nis, p. 63. 



Dorsal scales convex, granular ; tail little 



longer than head and body, subtriangular 



in section, with trenchant, serrate dorsal 



angle 59. pentaprion, p. 64, 



Dorsal scales granular and keeled ; tail at least 



twice as long as head and body 60. fraseri, p. 65. 



All the scales of the body equal in size .... 55. latifrons, p. 62. 



/3. Ventral scales distinctly keeled. 



Ventral scales large and sharply keeled .... 61, cop'n^ p, 65, 

 Ventral scales small and rather feebly keeled 62. petersii, p, QQ. 



VOL. II. 



