418 TEIIDiE. 



1. Cophias tridactylus. 



Microdactylus scblegelii, Gray, Cat. p. 57. 

 Chalcides ti-idactylus, JDaitd. Eept. iv. p. 367, pi. Iviii. fig. 3. 

 schlegelii, Dum. 8f Bibr. p. 457. 



Both pairs of limbs with three clawed digital tubercles. Frontal 

 pentagonal, longer than broad ; interparietal triangular, oblong ; 

 three supraoculars ; nasal large, oblong, quadrilateral ; a loreal ; six 

 or seven temporals ; six upper and four lower labials ; chin-shields, 

 one anterior and two pairs. Scales quadrangular, juxtaposed, 

 narrow on the back and sides, broader on the belly ; forty-six scales 

 from occiput to base of tail, ten of which are anterior to the fore 

 limbs ; twenty-six scales round the body. Three elongate prseanals. 

 Tail scaled like the body. Upper surfaces olive-brown, lower 

 rufous. 



2. Cophias heteropus. 



Herpetochalcis heteropus, Boettg. Ber. Offenh. Ver. Katurk. 1883, 

 p. 150. 



Fore limb with three, hind limb with two clawed digital tuber- 

 cles. Internasal triangular, truncate in front ; a long, triangular 

 interparietal ; two supraoculars ; six upper and four lower labials. 

 Scales quadrangular, juxtaposed, thirty-four round the body. Six 

 prseanals. Four praeanal pores. Yellowish, back darker ; upper 

 surface of tail with four light longitudinal bands. 



From snout to vent 54 millim. 



Central America ? 



3. Cophias flavescens. 



Clialcis flavescens, Oray, Cat. p. 58. 

 ? Chalcides flavescens, Bonnnt. Encycl. Metli., Erp. p. 67, pi. xii. 



fig. 3. 

 Chamfesaura cophias, Schncid. Hist. Amp/i. p. 209. 

 Chalcides monodactyhis, Daiid. Be^it. iv. p. 370. 

 Chalcis cophias, Men: Tent. p. 75. 

 Colobus daudini, 3Ierr. I. c. p. 76. 

 Chalcides cophias, Dznn. i^- Bibr. p. 459 ; Gravenh. Nova Acta Ac. 



Leop.-Carol. xxiii. 1851, i. p. 306, pi. xxix. 

 trilineatus, Peters, Mon. Berl. Ac. 1872, p. 775. 



Fore limb with three or four digital tubercles, hind limb undi- 

 vided. Frontonasal trapezoid, nearly as broad as long ; frontal large, 

 pentagonal, longer than broad ; parietals large ; no interparietal ; 

 two supraoculars ; nasal twice as broad as deep ; loreal shorter, but 

 a little deeper than the latter ; two infraorbitals, anterior triangular 



