568 REPORT OF NATIONAL MUSEUM, 1898. 



The following are the characters of the species : 



I. Nostril between the nasal plates. Males with a spine on each side the preanal 



region. 

 A. Ten-twelve longitudinal rows of ventral plates. 



Brachial shields small, no post-antehrachials; 5 parietals; 4 supraoculars; 



femoral pores 29-35; olive, white-spotted C. mm-inus. 



AA. Ventral plates in 8 longitudinal rows. 



Large brachials; no post-antebrachials; 5 parietals; 4 supraoculars; femo- 

 ral i»ores 19 ; olive above with a lighter dark-edged dorsal band. 



C. espeutii. 



Large brachials; no post-antebrachials; 5 parietals; 4 supraorbitals; femo- 



oral pores 18-24; olive with 5-9 light longitudinal stripes.. . C. lemniscatus. 



Brachials very small; black or blackish brown with lines on the nape and 



spots on the outer side of the limbs C. nigricolor. 



II. Nostril anterior to nasal suture. 



1. V'entral plates in 10-12 longitudinal rows. 



Dorsal scales granular; edge of collar granular; brachials large; no post- 

 antebrachials; femoral pores 10-12; 3 parietals; 3-4 supraorbitals; olive 

 with rows of black spots, and 1 or 2 white lines on each side . . C. lacertoides. 



Dorsal scales coarse, flat; scales of c(dlar very small; parietals 3; supra- 

 oculars 4; brachials large ; olive with 9 longitudinal lines above. 



C. longicauda. 



2. Ventral plates in 8 longitudinal rows. 



A. Scales of collar not larger at edge, which is more or less granular; supra- 

 orbitals 3 (parietals 3; no post-antebrachials). 

 Hind leg shorter, reaching meatus anditorius; anal scales continuous 

 with abdominals; femoral scales in 6-7 rows; brachials larger; anals 



10-12; usually five stripes on each side C. deppei. 



Hind leg longer, reaching nasal suture; minute scales between abdom- 

 inals and anals; femoral scales in 10-12 rows ; brachials smaller; anals 



10-12; only four stripes on each side C. guttatua. 



AA. Scales of collar not larger at edge, which is more or less granular; 

 supraorbitals 4 (parietals 3), 

 a. Prenasal not reaching second superior labial. 

 /J. Post-antebrachial plates wanting. 



Large ; anal plates 10 or more ; brachials in 4-5 rows ; femoral 

 pores 24-5; hind leg extended reaches ear; stripes broad and 



irregular C. maximua. 



Medium; anal plates 5-6; brachials in 4-8 rows; femorals in 

 6-9; femoral pores 19-21; scales generally coarse; the hind 

 leg extended reaches ear; stripes complete or broken up. 



C. tessellatiia. 



Smaller; anal plates 8-10; brachials 6 rows; femorals 8 ; femoral 



pores 25; hind leg extended reaches prenasal plate; yellow 



spotted on olive ground C. variolosua. 



Small; brachial plates 5 rows; femorals 6; femoral pores 17; 



scales smooth ; striped ; hind leg to ear C. octolineatiia. 



Small; brachial rows 6; femorals 4-5; femoral pores 17; scales 



rough ; unicolor; hind leg to ear C. inornatua. 



AAA. Collar with large scales, abruptly larger than the gnlars. 

 a. Anterior nasal plate nut reaching second superior labial. 

 /3. Femoral pores 15 or more. 



y. No post antebrachial plates. 



Small ; stripes persistent, no intermediate spots; femur with 

 a stripe behind; femoral pores 15-17; head short, loreal 

 plate hi;>her than long; femoral scales 7-8 rows; 5 infra- 

 labials c. aexlineatua. 



