408 TELIDB. 
millim. millim, 
Total length .......... 249 From end of snout to 
CAG: (6.6 neue eee e Os 22 VEN Grenades qaewsyiaeas Ge 94 
Width of head ........ 125 Forelimb...........> 30 
From end of snout to fore Hind limb........... . 41 
MD ange eondacet fe 37 Dail: Music temetcce ts 155 
Ecuador. 
aod. Sarayacu. Mr. Buckley [C.]. (Type.) 
24, ARGALIA. 
Argalia, Gray, Ann. & Mag. N. H. xviii. 1846, p. 67; Peters, Abh. 
Berl. Ae, 1862, p. 213. 
Tongue moderately elongate, arrow-headed. Lateral teeth com- 
pressed, bi- or tricuspid. Head with large regular shields ; fronto- 
nasal separating the nasals ; preefrontals and frontoparietals present ; 
nostril pierced in the middle of a single nasal. LHyelids developed, 
lower with a non-transparent disk. Ear exposed. Limbs well 
developed, pentadactyle. Scales perfectly smooth, quadrangular, 
juxtaposed, forming regular transverse series on the back, and trans- 
verse and longitudinal series on the belly; the abdominal scales 
considerably smaller than the dorsals ; the lateral scales smaller and 
irregular. A strong collar fold. Tail cylindrical. Femoral pores 
in both sexes. 
Venezuela and Colombia. 
1. Argalia marmorata. 
Argalia marmorata, Gray, 1. c. 
olivacea, Gray, Proce. Zool. Soc. 1847, p. 97, and 1858, pl. xv. 
fig. 1. 
Gortonoiid peecilochilus, Licht, Nomencl. Rept. Mus. Berol. p. 16. 
Ecpleopus (Argalia) olivaceus, Peters, /.¢. 
) marmoratus, Peters, @. e. 
—— (——) pecilochilus, Peters, J. e. 
Appearance somewhat similar to that of a Gerrhonotus. Head 
depressed, large and distinct from neck in the males. Frontonasal 
longer than broad, pentagonal; a pair of prefrontals forming a 
short or very short suture ; frontal short ; frontoparietals moderate ; 
parietals forming an oblique suture with a large supratemporal ; 
interparietal hexagonal, longer than the parietals; a pair of large 
occipitals ; four supraoculars; a loreal; a row of rather large infra- 
orbitals ; temples with large shields; seven or eight upper and six 
or seven lower labials ; chin-shields, one anterior and four pairs, the 
two first pairs forming a suture; gular scales squarish, subequal, 
forming transverse rows; collar-shields nine to eleven ; fourteen to 
sixteen transverse rows of scales between the chin-shields and the 
edge of the collar. Scales quadrangular, at least twice as long as 
