BRACHYMELES 249 



Measurements of Brachymeles gracilis (Fischer) . 



mm. 



Total length 117 



Snout to vent 81 



Snout to foreleg 19 



Tail broken 36 



Axilla to groin 55 



Width of head 6.3 



Foreleg 6 



Hind leg 11 



Remarks. — Only one specimen was found. It is an adult 

 female containing two embryos, 46 millimeters long. In one the 

 frontonasal and frontal are broadly in contact. The arrange- 

 ment of chin shields is identical with that in the mother. The 

 lateral stripes are prominent. This species forms another link 

 in the chain of retrogression in the genus Brachymeles. It 

 stands between Brachymeles schadenbergi and B. bicolor, and 

 differs from both in the degree of development of the limbs and 

 the relative length of the body. 



As compared with B. houlengeri the following differences are 

 evident: The eye is very much smaller and apparently can open, 

 but very slightly; the lid is opaque and probably not movable. 

 In B. houlengeri the eye is of considerable size and the eyelid 

 moves so as to expose the eyeball. The ear opening in B. gracilis 

 is minute, scarcely visible. 



Comparative vieasurements of Brachymeles houlengeri sp. nov. and Brachy- 

 meles gracilis (Fischer). 



B. houlengeri. B. gracilis. 

 mm. mm. 



Snout to vent 

 Snout to foreleg 

 Axilla to groin 

 Width of head 

 Height of head 

 Snout to ear 

 Foreleg 

 Hind leg 



BRACHYMELES SCHADENBERGI (Fischer) 

 Plate 22, fig. 1 



Senira bicolor, part., Gray, Cat. Liz. (1845) 98. 



Eumeces (Riopa) schadenbergi Fischer, Jahrb. wiss. Anst. Hamburg 

 2 (1885) 87, pi. 3, fig. 2. 



81 



81 



22 



19 



50 



55 



10 



6.3 



.9 



5 



12 



10 



10 



6 



17 



11 



