8. LYGOSOltfA. 211 



Lower eyelid sciily. Ear-opening distinct, small. 8upranasals 

 present or absent. Frontal not broader than the sujiraoeular 

 region. Frontoparietals distinct. Pncanals not eularged. 



(Keneuxia, Gray, p. 214.) 



IV. Limbs well developed ; the length of the hind limb exceeds the 

 distance between the centre of the eye and the lore limb. 

 Lower eyelid with an undivided transparent disk. Tympanum 

 distinct. No supranasals. llostral forming a suture with the 

 frontonasal. Frontal not broader than the supraocular region. 

 One or more pairs of enlarged uuchals. 



{Liolepisma, D. & B., p. 215.) 



V. Limbs well developed, pentadactyle, overlapping when pressed 



against the body. Lower eyelid with an undivided transparent 

 disk. Tympanum distinct. 8upranasals present. llostral 

 forming a suture with the frontonasal. Frontal not broader 

 than the supraocular region. I'neanals not or scarcely enlarged. 



{Emoa, Gray, p. 219.) 



VI. Limbs short or rudimentary. Lower eyelid scaly or with 

 a transparent disk. Ear distinguishable. Supranals present (or, 

 in one species, the nasal partially divided longitudinally and 

 forming a suture with its fellow). Prjefroutals well developed. 

 Frontal not broader than the supraocular region. 



(Biojm, Gray, p. 220.) 



VII. Limbs short, the hind limb not measuring more than the distance 

 between the anterior corner of the eye and the fore limb, 

 pentadactyle. Lower eyelid scaly. Tympanum distinct. No 

 supranasals. Pra?frontals well developed. Frontal not broader 

 than the supraocular region (Bomolejrtda, Gray, p. 221.) 



VIII. Limbs very short, with less than five digits. Lower eyelid 

 with an undivided transparent disk. Ear covered with scales. 

 No supranasals. Praefrontals well developed. Frontal not 

 broader than the supraocular region. (Hemiergis, Wagl., p. 223.) 



IX. Limbs more or less developed. Lower eyelid scaly or with a 

 transparent disk. Ear covered with scales, or very minute. 

 No supranasals. Pra3fiX)ntals (in the species with short limbs) 

 minute or absent. Fronial not broader than the supraocular 

 region (Siaphos, Gray, p. 223.) 



X. Limbs short or rudimentary. Lower eyelid with a transparent 



disk. Ear distinct, minute. No supranasals. Prsefroutals 

 very small and widely separated, or absent. Frontal broader 



than the supraocular region {Bhodona, Gray, p. 223.) 



p2 



