5. AMBEIVA. 349 
5. Ameiva edracantha. 
Ameiva edracantha, Bocourt, Ann. Sc. Nat. xix. 1874, art. 4, and 
Miss. Sc. Mex., Rept. pl. xx. a. fig. 6; Giinth. Biol. C.--Am., Rept. 
p. 25. 
Cnemidophorus armatulus, Cope, Jown. Ac. Philad. (2) viii. 1876, 
p. 164. 
Verticaria hedracantha, Cope, Proc. Am. Philos. Soc. xxii, 1885, 
p. 172. , 
Nostril pierced between the two nasals ; five occipitals on a trans- 
verse line, the central largest, the outer pair smallest; fronto- 
parietals united or distinct; three supraoculars, sometimes a small 
posterior fourth; five supraciliaries, second longest; loreal un- 
divided ; eight or nine upper labials, Five or six lower labials; 
chin-shields, one anterior and five or six pairs; several irregular 
enlarged median gulars; mesoptychium with two or three rows of 
enlarged scales. Dorsal granules considerably larger than in 
A. undulata, smooth. Ventral plates in eight longitudinal series 
(with an outer rudimentary series), all nearly of the same size, 
thirty transverse series, counting from the granules of the collar. 
Two median larger preanal plates ; on each side, a group of six or 
seven spinose plates in the male. Brachium with several rows of 
enlarged shields passing gradually into the postbrachials, those of 
the anterior row largest, continuous with the antebrachials, which 
are in two rows. Three or four rows of femoral and two of tibial 
shields. Thirteen femoral pores. Digits feebly serrated. Caudal 
scales keeled. Olive-brown above, back with transverse black 
lines; five yellowish longitudinal lines, the median widest, com- 
mencing from the snout; sides of body, and limbs, marbled wit 
blackish ; lower surfaces yellowish white. 
dé. Q. 
millim. millim. 
Total lengthiisiciuds weaden 151 148 
Cais weed LM ashte Seems Neahoon ine ste ae 13 13 
Width of head.............. 8 8-5 
From end of snout to fore limb. 19 20 
From end of snout to vent.... 50 54 
POre dM acpi sere esac 19 19 
Hind limb .............. 35 35 
Pailin doers o aaa. aha ees ae 101 94 
Ecuador ; Northern Peru. 
a-b. SQ. Guayaquil. Mr. Fraser ([C.]. 
6. Ameiva lineolata. 
Ameiva lineolata, Gray, Cat. p. 20. i 
Ameiva lineolata, Dum. § Bibr. v. p. 119; Bocourt, Miss. Sc. Mex., 
Rept. pl. xx. a. fig. 5. 
Nostril pierced in the anterior nasal only; five occipitals; four 
supraoculars ; loreal undivided. Median gular and mesoptychial 
