Acanthodacfyhis. Ill 



Synopsis of the Varieties. 

 I. Snout about 1 J lenorth of postocular part of head. 



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



Scales smooth or feebly keeled, rarely strongly keeled, 60 to 80 

 (usually 65 to 75) across middle of body; ventral plates 14 

 (rarely 12 or IGi in tlie longest ti'ansverse series ; hind limb 

 rarely reacliing the eye ; 21 to 26 lamelhe under the foiirtli toe 



Forma typica. 



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

 plates 16 in the longest transverse series ; hind limb reaching 

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

 lamellae under the fourth toe Var. lomjipes, Blg'r. 



Scales strongly keeled, 50 to 59 across middle of body ; \'entral 

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

 limb not reaching bej'ond the ear ; 20 to 26 lamellfe under 

 the fourth toe ...... Var. ciKcJoicni, Blgr. 



B. Usually 4 upper labials to liehiw centre of eye. 



Scales strongly keeled, 42 to 5.S (usually 40 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 

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

 I!. Snout not li length of postocular part of head ; scales strongly keeled ; 



usually 5 or 6 upper labials to below centre of eye ; IS to 25 lamellae under 



the fourth toe. 



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

 plates 14 (rarely 12 or 16) in the longest transvei'se series; 

 foot li to U length uf 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 is) 

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



Takeu in the wide sense, A. scuteUatus shows an enormous range of 

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

 37-80 ; longitudinal .series of ventrals, 10-16 ; transverse series of 

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

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



11. ACANTHODACTYLUS PRASERI. 



Acanthodacfylug fraseri, Bouleug. 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 3| 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 



