8. LYGOSOMA. 265 



Central America. 



a. Ad. Atitlan. M. Bocourt [P.], 



b-c. Ad. & hgi-. Rio Motagua. O. 8alvin, Esq. [C.]. 



53. Lygosoma macrotympamim. 



Mocoa macrotympauum, SfoUczka, Journ. As. Soc. Seng. xlii. 1873, 

 p. 166. 



Body moderately slender. Snout rather attenuated and prolonp^ed. 

 Lower eyelid with an undivided transparent disk. Xostril pierced 

 in the nasal ; no supranasal ; frontonasal in contact with the 

 rostral, posteriorly just touching the frontal ; four supraoculars ; 

 frontoparietal single; interparietal distinct: paricfals forming a 

 suture behind the interparietal ; four pairs of nuchals ; fifth upper 

 labial under the orbit. Ear-opening very large, rounded, with a 

 perfectly smooth edge all round. 22 smooth scales round the 

 middle of the body ; dorsals slightly larger than laterals. A pair of 

 moderately enlarged pra^anals. Limbs proportionately developed, 

 with the toes very slender. Head above brown, paler on the snout ; 

 three longitudinal white bands along the body, separated by two 

 somewhat broader brown bands; the median dorsal white band 

 becomes obsolete at the root of the tail ; labials and sides of head 

 brownish, spotted with white ; limbs above with very close longi- 

 tudinal brown lines, digits powdered with pure white ; lower portion 

 of the sides and lower surfaces livid carneous, tinged with bright 

 orange on the lower belly and on the tail. 



Total length 100 millim., of which the tail measures nearly GO. 



South Andaman. 



54. Lygosoma macrotis. 



Euprepes macrotis, Steind. Norara, liept. p. 48. 

 Mocoa macrotis, Theoh. Cat. Hept. Brit. Incl. p. 60. 



Lower eyelid with an undivided transparent disk, "^o supra- 

 nasals ; rostral large, posterior border convex and forming a curved 

 suture with the frontonasal, which is in contact posteriorly with the 

 anterior angle of the frontal ; frontoparietals and interparietal 

 distinct. Ear-opening very large, circular, without projecting 

 lobules. 31 smooth scales round the body. A pair of large 

 pra;anals. Brown above, with a deep black lateral band ; belly 

 yellowish white. 



Nicobars. 



55. Lygosoma africanum. (Plate XIX. fig. 1.) 



Mocoa africana, Gray, Cat. p. 83. 

 Lygosoma (Mocoa) africanum, Peters, Mon. Berl. Ac. 1874, p. 162, 

 Mocoa africana, Greeff, Sitzb. Ges. Nat. Marburg, 1884, p. 48 ; 

 Socage, Jorn. Sc, Lish. 1886, no. 42. 



Habit lacertiform ; the distance between the end of the snout 

 and the fore limb is contained once and a half in the distance 



