( X ) 



A large central occipital shield ... R. anguina. 



Central occipital shield small . . . R. cyanella. 



EUMECES. 

 'Dorsal scales enlarged. 

 Scales in 21 longitudinal rows . . . E. tseniolatus. 



Scales in 30 longitudinal rows ... E. Blythianus. 



Chiamela. 

 Limbs feeble. Toes four 

 Scales smooth. Lower eyelid transparent. 



Colour golden brown. Toes 4<i ... C. lineata. 



Hagria. 

 Limbs feeble. Toes five before, four behind. 

 Scales smooth. Lower eyelid transparent 

 Colour brown and yellow lined. H. Vosmaerii. 



Family ACONTIID^. 

 Nostrils in the rostral plate. Limbs rudimentary or absent. 



ACONTIAS. 



. Legs entirely absent. 



Colour brown ... A. Layardi. 



Nessia. 



Four rudimentary legs. 

 Three toes only . . . N. Burtonii. 



No hind toes . . . N. monodactyla. 



Four toes on all feet . . . N. Thwaitesii. 



DiBAMUS. 



Limbs in male 2. Females limbless. 

 Scales in 24 longitudinal rows ... D. Nikobaricus. 



Family SEPSID^. 

 Nostrils in a small nasal shield wedged into the rostral. 



Sphenocophalus. 

 Limbs rudimentary, anterior smallest and fitting into a groove. 

 Toes three ... S. tridactylus. 



Toes five ... S. pentedactylua. 



