8. LYGOSOMA, . 265 
Central America. 
a. Ad. Atitlan. M. Bocourt [P.]. 
b-c. Ad. & her. Rio Motagua. O. Salvin, Esq. (C.]. 
53. Lygosoma macrotympanum. 
Mocoa macrotympanum, Stoliczka, Journ. As. Soc. Beng. xlii. 1878, 
p. 166 
Body moderately slender. Snout rather attenuated and prolonged. 
Lower eyelid with an undivided transparent disk. Nostril pierced 
in the nasal; no supranasal; frontonasal in contact with the 
rostral, posteriorly just touching the frontal; four supraoculars ; 
frontoparietal single; interparietal distinct; parietals 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 preanals. 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 60. 
South Andaman. 
54, Lygosoma macrotis. 
Euprepes macrotis, Steind. Novara, Rept. p. 48. 
Mocoa macrotis, Theob. Cat. Rept. Brit. Ind. p. 60. 
Lower eyelid with an undivided transparent disk. No 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 
preanals. Brown above, with a deep black lateral band; belly 
yellowish white. 
Nicobars. 
55. Lygosoma africanum. (Puate XIX. fig. 1.) 
Mocoa africana, Gray, Cat. p. 83. 
Lygosoma (Mocoa) africanum, Peters, Mon. Berl. Ac, 1874, p. 162. 
Mocoa africana, Greeff, Sitz. Ges. Nat. Marburg, 1884, p. 48; 
Boeage, Jorn. Sc. Insh. 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 
