. Catalogue of the neotropical Squamata. Squamata; Reptiles. Fig. ID. Trop idurus. enlarged interparietal Fig. 11. Ophryoesso ides, small interparietal 75'Tail length from slightly longer than to considerably shorter than snout-vent length; caudal scales form whorls of stout spines 76 Tail length much greater than snout-vent length; caudal scales may be mucronate but not spinose 77 about one-half snout-vent length, non- autotomic, with equal whorls of spines Uracentron Tail about equal to snout-vent length, autoto- mlc, with caudal scales In unequal whorls Strobllurus 77-Orbit bordered
. Catalogue of the neotropical Squamata. Squamata; Reptiles. Fig. ID. Trop idurus. enlarged interparietal Fig. 11. Ophryoesso ides, small interparietal 75'Tail length from slightly longer than to considerably shorter than snout-vent length; caudal scales form whorls of stout spines 76 Tail length much greater than snout-vent length; caudal scales may be mucronate but not spinose 77 about one-half snout-vent length, non- autotomic, with equal whorls of spines Uracentron Tail about equal to snout-vent length, autoto- mlc, with caudal scales In unequal whorls Strobllurus 77-Orbit bordered below by a single, wide, elongate subocular extending to anterior corner of orbit, may be preceded by preocular of equal width 7^ Orbit bordered below by an arc of five to seven subequal scales; no preocular 79 78. Femoral pores present- Femoral pores absent — -Sceloporus -Trop idurus 75. Upper head scales small, subequal, pyramidal; supraoculars small, supraorbital semicircles not distinct; interparietal scale about as wide as distance between orbits Uran iscodon Upper head scales of various sizes, flat or convex, or a few may be conical; supraoculars enlarged, supraorbital semicircles distinct; interparietal scale much wider than distance between orb i ts PI ica tal lamellae smooth- Subdigital lamellae keeled- —81 -^7 81. Ventral scales l<eeled 82 Ventral scales smooth 84 75»Cola desde ligeramente más larga a mucho más corta que la longitud hocico-ano; escamas cau- dales forman anillos de espinas fuertes yg Longitud de la cola mucho mayor que longitud hocico-ano; escamas caudales pueden ser mucro- nadas pero no espinosas 77 aproximadamente la mitad de longitud hocico-ano, no autotómica, con anillos iguales de esp i ñas Uracentron Longitud de la cola aproximadamente igual a la hocico-ano, cola autotómica, con espinas cau- dales en anillos desiguales Strob ilurus 77«0'"hita bordeada por debajo por una sola subocu- lar ancha, alargada que s
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Keywords: ., bookcentury1900, bookco, booksubjectreptiles, booksubjectsquamata
