336 TEIID.. 
Seps marmoratus, Laur. Syn. Rept. p. 69. 
Tupinambis monitor, Daud. Rept. iil. p. 20; Wied, Beitr. Nat. Bras. 
i. p. 155, and Abbild. ; Spix, Spec, Nov. Lacert. Bras. p.19, pl. xix. 
Monitor meriani, Blainv. Bull. Soe. Philom. 1816, p. 111. 
Teius monitor, Terr. Tent. p. 61. 
Monitor teguixin, Fitz. N. Classif. p. 51. 
Podinema teguixin, Wagl. Syst. Amph. p. 153. 
Teius teguixin, Gray, dnn. N. H. i. p. 276; Girard, U. S. Explor. 
Exped., Herp. p. 202, pl. xviii. figs. 1-7. 
Salvator merianee, Dum. § Bibr. v. p. 85; Guichen. in Casteln. Amér. 
Sud, Rept. p. 30. 
Nasals forming a short suture behind the posterior angle of the 
rostral; one large internasal; a pair of smaller prefrontals; a 
frontal, nearly as large as the internasal; a pair of small fronto- 
parictals ; aninterparietal and a pair of parietals, these three shields 
small, subequal, on a line; occiput with small polygonal scales; 
four supraoculars, second largest; two large loreals; eight to ten 
upper labialis, separated from the orbit by a row of infraorbitals ; 
temples with small granular scales. Mental broad, truncate poste- 
riorly ; eight or nine lower labials, the first constantly, and some- 
times the three following, in contact with the chin-shields, the 
others separated from the latter by small shields; chin-shields 
large, the first or the first two single, the others in pairs, the first 
pair forming a suture; gular scales flat, granular between the chin- 
shields and in the folds of the neck, larger and hexagonal on the 
remaining parts. Body covered above with small oval flat granular 
scales arranged in regular transycrse series ; these granules becoming 
smaller still on the flanks. Ventral plates at least twice as long as 
broad, in thirty to thirty-five regular transverse * and thirty-six to 
forty longitudinal series. Przeanal scales small, like the gulars. 
Limbs granular above, the fore limb anteriorly and the hind-limb 
inferiorly with enlarged flat scales, a few of which, on the inner 
edge of the tibia, are transversely dilated. Femoral pores small, 
about twenty on each side. Tail subcylindrical, slightly compressed 
towards the end, with small keeled scales arranged in regular 
transverse series, two series on the upper surface. corresponding to 
one on the lower. Olive above, marbled and transversely barred 
with black, and with more or less distinct rows of lighter spots ; 
yellowish inferiorly, with interrupted black cross bands ; the sutures 
of the plates on the upper surface of the head black. 
centim. centim. 
Total length ...... 92 Fore limb ........ 14 
Head) ss cc cne aces 10 Hind limb........ 21 
Width ofhead .... 06 Pail. ata ver eseeuceces 55 
Body ei suas adies wrt 27 
South America, from the Guianas to Uruguay ; West Indies. 
* Counted from a line drawn at the posterior border of the arms. 
