3. ANOLIS. 13 



Supraocular scales smooth or very feebly 



keeled ; scales on the vertebral line abruptly 



enlarged, forming two longitudinal series ; 



ventral scales nearly as large as antefemo- 



rals ; 18 to 21 lamellte under phalanges ii. 



and III ^ ^' gingivinus, p. 28. 



Supraocular scales smooth or very feebly 



keeled ; scales on the vertebral line en- 

 larged ; ventrals much smaller than ante- 



femorals ; 23 to 32 lameUa) uuder phalanges 



II. and III 10. leacliii, p. 29. 



tt Occipital in contact with supraorbitals. 



Supraocular scales smooth 11. alligator, p. 31. 



** The width of the dilated part of the middle toes 

 only half the length of the slender distal part. 



Head not twice as loug as broad; ventral 



scales strongly imbricate, nearly as large as 



the enlarged supraoculars 14. cgbotes, p. 34. 



Head twice as long as broad ; ventrals much 



smaller than the largest supraoculars .... 15. citrineUus, p. 35. 



/3. Scales on upper surface of snout keeled ; supraorbital 

 semicircles separated by one or two series of scales. 



Occipital scale smaller than the ear-opening .. 8. homolecliis, p. 28. 

 Occipital larger than the ear-openiug 12. grahami, p. 32. 



2. The scales on the middle of the back not at all larger than 

 those on the flanks. 



Supraorbital semicircles in contact ; supra- 

 ocular scales smooth 13. disticJius, p. 33. 



B. Ventral scales keeled. 



1. Occipital scale in contact with the supraorbitals. 



Supraorbital semicircles in contact ; supra- 

 ocular scales keeled 16. acutus, p. 3G. 



2. Occipital separated from supraorbitals. 



a. Scales on upper surface of snout not keeled ; supraorbital 

 semicircles in contact or narrowly separated by one or 

 two series of scales. 



a. Tibia shorter than tlie distance between the end of the 

 snout and the ear-opening. 



Supraocular scales keeled 17. h-ugi, p. 37. 



fl. The length of the tibia equals or exceeds the distance 

 between the end of the snout and the ear-opening. 



Supraocular scales keeled 18. richardii, p. 37. 



Supraocular scales smooth ... 10. lineatiis, p. 38. 



