Acanfhodactyhis. Ill 



Synopsis of the Varieties. 



I. Snout about 1^ length of postoeular part of head. 



A. Usually 5 upper labials to below centre of eye. 



Scales smooth or feebly keeled, rarely strongly keeled, GO to 80 

 (usually 05 to 75) across middle of body; ventral plates 14 

 (rarely 12 or IG) in the longest transverse series ; hind limb 

 rarely reaching the eye ; 21 to 2G lamellae under the fmirtli toe 



Forma typica. 



Scales strongly keeled, 65 to 80 across middle of body ; ventral 

 plates 16 in the longest transverse series ; liin<l limb reaching 

 the eye, or between the ear and the eye (males) ; 25 to 30 

 lamellae under the fourth toe ..... Var. lomjipes, Blgr. 



Scales strongly keeled, 50 to 59 across middle of body ; ventral 

 plates 14 (rarely 12) in the longest transverse series ; himl 

 limb not reaeliing beyond the ear; 20 to 26 lamellaj under 

 the fovirth toe ....... Var. audouini, Blgr. 



B. Usually 4 iipper labials to below centre of eye. 



Scales strongly keeled, 42 to 58 (usually 46 to 55) across middle 

 of body ; ventral plates 14 (rarely 12) in the longest trans- 

 verse series ; hind limb not reaching the ear ; 19 to 23 

 lamellse under the fourth toe ..... Var. aureus, Gthr. 



II. Snout not 1.V length of postociUar part of head ; scales stronglj"^ keeled ; 

 usually 5 or (i upper labials to below centi-e of eye ■. 18 to 25 lamellae under 

 the fourth toe. 



40 to 65 (usually 46 to 58) scales across middle of body ; ventral 

 plates 14 (rarely 12 or 16) in the longest transverse series ; 

 foot li to li length of head; 16 to 25 (usually 17 to 23) 

 femoral pores on each side .... Var. inornatus, Gray. 



37 to 55 (usually 39 to 48) scales across middle of body ; ventral 

 plates 12 (rarely 10 or 14) in the longest transverse series; 

 foot li to li length of head; 12 to 20 (usually 14 to 18) 

 femoral pores on each side ..... Var. dumerili, M.-Edw. 



Taken in the wide sense, A. scutelhdKS shows an enormous range of 

 variation in the number of scales and plates, viz. : scales across body, 

 37-80 ; longitudinal series of A^entrals, 10-16 ; transverse series of 

 ventrals, 27-38 ; collar-plates, 7-15 ; gular scales, 20-42 ; femoral 

 pores, 12-29 ; lamellae under fourth toe, 18 30. 



11. ACANTHODACTYLUS FRASERI. 



Acanthodactijlus fraseri, Bouleng. Journ. Bomb. N. H. Soc. xxv, 

 1918, p. 373, and Bull. Soc. Zool. France, 1918, p. 148. 



Habit rather slender, body moderately depressed. Head 1} to If 

 times as long as broad, its length 3f or 4 times in length to vent, its 

 depth equal to the distance between the centre of the eye and the 

 tympanum ; a lanceolate concavity from the frontonasal to the middle 



