23. EUSPONDYLUS. 405 
11 transverse series of scales from the chin- 
shields to the edge of the collar, and 32 
from occiput to base of tail.......... 4. guentheri, p. 407. 
1, Euspondylus strangulatus. 
Euspondylus strangulatus, Cope, Proc, Ac. Philad. 1868, p. 99. 
Ecpleopus (Euspondylus) strangulatus, O’Shaughn. Proc, Zool, Soc 
1881, p. 236, 
Head not depressed, large and distinct from neck, especially in the 
males; body moderately elongate ; limbs long. Interparietal large, 
longer than parietals; occipitals split up into numerous irregular 
shields ; four supraorbitals, anterior small ; nasal, frenoorbital, and 
loreal of subequal size, the latter resting on the two former, the three 
plates forming a triangle; a row of infraorbitals ; temples granular 
inferiorly ; six upper and five or six lower labials ; chin-shields, one 
anterior and four pairs, the two first pairs forming a suture; gular 
scales rather small, round, larger near the chin-shields, becoming 
largest and quadrangular near the collar ; collar-shields six or seven. 
Dorsal scales rather small and rather irregular, a little oblique, the 
transverse series broken up on the median dorsal line; these scales 
are subquadrangular and slightly keeled; lateral scales very small, 
almost granular; forty-five to forty-eight scales round the middle of 
the body, including ventrals ; nuchal scales minute,granular. Ventral 
shields large, square, in eight longitudinal and twenty-two to twenty- 
four transverse series. A pair of large preeanal plates, bordered 
anteriorly by a row of small plates. Limbs with smooth shields ; 
lower surface of arm and hinder side of thigh granulate ; tibia above 
with small feebly keeled scales. Male with twenty-six to twenty- 
nine femoral pores on each side. Caudal scales quadrangular, forming 
regular annuli, narrow and feebly keeled above, larger and smooth 
inferiorly. Olive-brown above, with more or less distinct large 
round darker spots; sides of body with more or less marked light 
spots or ocelli, the three or four anterior of these ocelli being very 
strongly marked in the young; sides and lower surface of the head 
blackish in the males ; lips and throat white and spotted with black 
in the females; belly cream-coloured. 
millim. millim. 
Total Jeno thi .:.c53,4ecck aaa ana ene 233 202 
Head ok od atedle Meare Mecsuneane Soe 25 18 
Widthoof head: «isc soccce aac ee echas 17 11 
From end of snout to fore limb ...... 40 30 
From end of snout to vent .......... 98 78 
Wore Lin brcslacvg carcass oe Baler ee ae ie OD 27 
Hind Hmb> yiseceees oka RARE 50 40 
Ma. Gacgie Scns apts Aisasoua Sean dee var ee 4 185) 124 
Ecuador. 
