6. poLrcHKUs. 99 



throat. Scales on the body unicarinate, juxtaposed on the flanks, a 

 little larger and imbricate on the belly and the middle of the back. 

 Limbs moderately elongate ; the adpresscd hind limb reaches the 

 elbow in the female, the axilla or the shoulder in the male. Nine to 

 eleven femoral pores on each side. Tail nearly three times as long as 

 head and body, covered with equal, keeled scales. Colour and markings 

 very variable ; upper surfaces usually reddish-brown in spirit, with 

 blackish spots or symmetrical transverse markings ; the sutures be- 

 tween the head-shields black ; black lines radiating from the eve, 

 the two most constant being directed to above the tympanum and to 

 the angle of the mouth ; lower surfaces paler, uniform or brown- 

 spotted. 



Total length 395 4!)7 millim. 



Head 26 32 „ 



Width of head . . 18 20 „ 



Body 79 110 „ 



Fore limb 42 50 „ 



Hind limb 62 69 „ 



Tail 290 355 „ 



South America. 



a,b. $ & hgr. Venezuela. 



c, d. 2 & hgr. Denierara. 



e-g. (S 2 • Berbice. 



h~l. d 2 ■ Para. R. Graham, Esq. [P.]. 



m. 2 ■ Bahia. • Dr. Wuclierer [O.J. 



71. 2 ■ Brazil. Lord Stuart [P.]. 



o. d. Brazil. T. Bell, Esq. [P.]. 



p, q, r. cJ 2 • Brazil. 



s. Ad., skeletou. Brazil. 



t, u. Ad., stuffed. ? 



2. Polychrus acutirostris. 



Sphserops anomalus, Grm/, Cat. p. 184, 

 Ecphymotes acutirostris, Gray, I. c. p. 185. 

 Polychrus acutirostris, Spix, Spec. Nov. Lacert. p. 1.5, pi. xiv. a. ; 



Cope, Proc. Ac. Fhilad. 18C4, p. 176 ; Peters, Man. Berl. Ac. 1877, 



p. 410. 

 Ecphymotes acutirostris, Fitzincj. N. Class. Rept. p. 49. 

 Polychrus anomalus, Wief/m. Herj). Mex. p. 16 ; Dum. ^' Bibr. 



p. 69; Reinh. S, Liith. Vidensk. Meddel. 1861, p. 2i^l ; Bocourt, 



Miss. Sc. Mex., Rept. pi. xvii. fig. 7; Boettg. Zeitschr. f. Natuno. 



Iviii. 1885, p. 214. 

 Laemanctus acutirostris, Dum. ^- Bibr. p. 75. 



Snout more jjointed than in the preceding ; nostril a little nearer 

 the orbit than ihe tip of tlie snout: ej'c-opcning very small; upper 

 head-scales as in the preceding. Gular scales smooth, elongate, 

 smaller than ventrals, forming longitudinal series separated by 

 granules on the gular pouch ; no denticulation. Scales on the body 



h2 



