26 1 



four supraoculars; seven or eight supraciliaries; frontoparietal 

 single; interparietal usually distinct, small, sometimes absent; 

 parietals in contact; a pair of nuchals and a pair of temporals; 

 sixth and seventh or fifth and sixth upper labials below the 

 eye. Body with 36 — 40 scales round the middle, smooth or 

 dorsals with five feeble keels, dorsals largest, laterals smallest; 

 the distance between the tip of the snout and the fore limb 

 is contained one time to one time and one fourth in that between 

 axilla and groin ; praeanals a little enlarged. Tail one time and 

 a half to one time and three fourths the length of head and body. 

 Limbs strong, the hind limb reaches the axilla or the shoulder ; 

 digits long, compressed, fourth toe with 32 — 40 smooth 

 lamellae below. 



Dark brown above, uniform or with dark and light dots, 

 sometimes a black lateral band. Lower parts yellowish or 

 brownish. Length of head and body 128 mm.; tail 170 mm. 



Habitat: New Guinea (Valise Island near the coast of 

 German New Guinea). — Solomon Islands; Bismarck Archi- 

 pelago; Caroline, Fiji, and Samoa Islands. 



Note: Peracca mentions L. 7iigriiiii from Sarawak, Borneo 

 (Revue Suisse Zool. VII 1900, p. 323). This form inhabits the 

 Polynesian Islands and ranges westwards to the Bismarck 

 Archipelago and Valise Island. Peracca's specimen had 5 — 6 

 scales in the ear-opening and 47 lamellae under the fourth 

 toe, whereas L. nigrum has 32 — 40 lamellae; probably his 

 specimen is another Lygosoma. 



103. Lygosoma parietale (Ptrs.). 



Euprepes (Mahiya) parietalis^ Peters, Mon. Berl. Ak. 1871, p. 572; Ann. Mus. 



Civ. Genova III 1872, p. 31, pi. IV fig. I. 

 Lygosoma parietale^ Boulenger, Cat. Liz. Ill 1887, p. 299. 



Snout obtusely pointed ; lower eyelid with a transparent 

 disk; ear-opening roundish, moderate. Supranasals small; fron- 

 tonasal forming a broad suture with the rostral ; praefrontals 

 in contact; frontal small, slightly longer than the praefrontal, 

 in contact with the two anterior supraoculars ; four supraoculars ; 

 eight or nine supraciliaries; frontoparietals fused; interparietal 

 small, but distinct ; a pair of nuchals ; five labials before the 

 large subocular. Body with 36 smooth scales round the middle ; 

 praeanals a little enlarged. Tail one time and one third the 

 length of head and body. Limbs strong, the hind limb reaches 



