| OCR Text |
Show 476 MR. G. A. B O U L E N G E R O N T H E [May 18, /3. The distance between the base of the fifth toe and the extremity of the fourth less than that between the nostril and the arm. * Dorsal scales feebly keeled, not or but shortly mucronate, 30-35 between the interparietal shield and the base of the tail, 6-7 corresponding to the length of the shielded part of the head ; tibia longer than the shielded part of the bead. 9. 8. orcutti, Stejn. *# Dorsal scales strongly keeled and mucronate, not more than 45 between the interparietal shield and the base of the tail. t 25-32 scales between the interparietal shield and tbe base of the tail, 5-7 corresponding to the length of the shielded part of the head. j Tibia not or but little longer than the shielded part of the head. Dorsal scales moderately or strongly mucronate ; femoral pores 2-16 on each side 10. S. spinosus, Wiegm. Dorsal scales very strongly mucronate; femoral pores 13-17. 11. S. acanthinus, Bocourt. Dorsal scales strongly mucronate, forming more or less oblique series converging towards the middle line; femoral pores 17-21. 12. S. asper, Blgr. \\ Tibia about one-fourth longer than the shielded part of the head ; femoral pores 17-22 on each side. 13. & zosteromus, Cope. It 32-45 scales between tbe interparietal shield and the base of the tail, 7-10 corresponding to the length of the shielded part of the head. Upper head-shields smooth; dorsal scales very strongly mucronate and denticulate ; tibia longer than the shielded part of the head; scales on back of thighs large 14. S. lickii, Van Denb. Upper head-shields smooth ; dorsal scales moderately or shortly mucronate; tibia as long as or slightly longer than the shielded part of tbe head. 15. S. formosus, Wiegm. Upper head-shields more or less distinctly rugose, rarely smooth ; dorsal scales rather strongly mucronate ; tibia as long as or longer than the shielded part of tbe bead 16. 8. undulatus, Daud. *** 46-56 scales between the interparietal shield and the base of the tail. Dorsal scales rather feebly keeled, forming parallel longitudinal series, 47-51 between interparietal shield and base of tail, 9-11 corresponding to the length of the shielded part of the head 17. S. elongatus, Stejn. Dorsal scales strongly keeled, forming parallel longitudinal series, 52-56 between interparietal shield and base of tail, 11-16 corresponding to the length of the shielded part of the head 18. S. gratiosus, B. & G. Dorsal scales strongly keeled, forming oblique series converging towards the middle line, 46-50 between interparietal shield and base of tail, 12-15 corresponding to the length of the shielded part of the head. 19. S. grammicus, Wiegm. ***# 60-83 scales between the interparietal shield and the base of the tail, strongly keeled, forming oblique series converging towards the median line, 12-20 corresponding to the length of the shielded part of the head... 20. S. microlepidotus, Wiegm. b. Dorsal scales very unequal in size ... 21. S. heterolepis, Blgr. |
