23. EUSPONDTLTJS, 405 



1 1 transverse series of scales from the chin- 

 shields to the edge of the collar, and 32 

 from occiput to base of tail 4. cjuentheri, p, 407. 



1. Euspondylus strangiilatus. 



Eu.«pondylu.s strangulatus, Cope, Troc. Ac. Pltilad. 18()8, p. 09. 

 Ecpleopus (Euspoudjlus) strangulatus, O' Shauyhn. I'roc, 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 np 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 

 interiorly ; 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 fortj'-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 prteanal 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, witli 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. 



6 2. 



niillim. millim. 



Total length 233 202 



Head 25 18 



Width of head 17 11 



From end of snout to fore limb 40 30 



From end of snout to vent 98 78 



Fore limb 33 27 



Hind limb , 50 40 



Tail 135 124 



Ecuador. 



