360 TEND. 
Guianas ; Trinidad; St. Eustatius. 
ad. Demerara. Col. Sabine [P.]. (Type.) 
a Qo. —? (Type of A. undulata.) 
6. CNEMIDOPHORUS*. 
Ameiva, part., Fitzing. N. Class. Rept. p. 21. 
Cnemidophorus, part., Wagler, Syst. Amph, p. 154; Wiegm. Herp. 
Mex. p. 9. 
Cnemidophorus, Dum. § Bibr. v. p. 123; Gray, Cat. p. 20; Bocowt, 
Miss, Se. Mex., Rept. p. 268. 
Verticaria, Cope, Proc. Amer. Philos, Soc, xi. 1869, p. 158. 
Tongue long, narrow, bilobate and not retractile at the base. 
Lateral teeth compressed longitudinally, bi- or tricuspid. Head 
with large regular shields ; anterior nasal in contact with its fellows ; 
nostril in the suture between the two nasals, or anterior to that 
suture. Eyelids developed. Ear exposed. Limbs well developed, 
pentadactyle. Dorsal scales small; ventral plates large, subquad- 
rangular, smooth, forming regular series. A double collar-fold. 
Femoral pores. Tail cyclo-tetragonal. 
America. 
Synopsis of the Species. 
I. Dorsal scales equal. 
A. Nostril between the two nasals; males with a spine on each 
side of the preanal region. 
1. 10 or 12 longitudinal rows of ventral plates. 
Brachial shields small ...........+.. 1. murinus, p. 361. 
2. 8 longitudinal rows of ventral plates. 
An anterior row of large brachials; ante- 
brachials, outer row largest and con- 
tinuous to the hand .............. 2. espeute, p. 362, 
An anterior row of large brachials ; ante- 
brachials, inner row largest and con- 
tinuous to the hand .............. 3. lemniscatus, p. 363. 
Brachials small, in two rows; mesopty- 
chial scales hardly larger than those 
Of the Oh sie ante sneer eha Mek wk 4, nigricolor, p. 364. 
B. Nostril anterior to nasal suture. 
1. 8 longitudinal rows of ventral plates. 
a. More than 12 femoral pores on each side. 
* Cnemidophorus perplexus, Baird & Gir. Proc. Ac. Philad. 1852, p. 128.— 
South-western United States. 
C. inornatus, Hallow. eod. loc. 1858, p. 255.—N. Leon. 
C. decemlineatus, Hallow. eod. loc. 1860, p. 482.—Nicaragua. 
