250 



subocular. Body slender; 33 — ^6 smooth scales round the middle, 

 dorsals slightly larger than ventrals, sometimes with three or 

 more obscure pigment lines; praeanals not or somewhat enlarged. 

 Tail two times and a half as long as head and body. Limbs strong; 

 the hind limb reaches the elbow or beyond; digits moderate, 

 basal part depressed, distal compressed, fourth toe with 75 — 87 

 lamellae below. 



Olive-brown above, strongly iridescent, speckled on back 

 and sides with paler scales; head uniformly brown. Lower parts 

 greenish-yellow; mental and rostral pale bufif. Length of head 

 and body 82 mm.; tail 201 mm. (After de Vis, not seen by me). 



Habitat: New Guinea (St. Joseph river). 



90. Lygosoma tetrataenia Boulenger. 



Lygosoma tetrataenia^ Boulenger, Ann. Nat. Hist. (6) XVI 1895, p. 30. 



Snout long, pointed; lower eyelid with a transparent disk; 

 ear-opening oval, a little larger than the palpebral disk, with 

 three very short lobules anteriorly. Nostril between three 

 small shields, a nasal, a postnasal and a supranasal ; frontonasal 

 as long as broad, in contact with the rostral and the frontal; 

 latter shorter than the frontoparietal, which is single and fused 

 with the interparietal, in contact with the two anterior supra- 

 oculars; four supraoculars, second and fourth longest; seven 

 supraciliaries; parietals in contact behind the frontoparietal; 

 a pair of nuchals and a pair of temporals; five upper labials 

 before the large subocular. Body with 26 — 28 smooth scales 

 round the middle, dorsals, especially the two vertebral rows 

 largest, laterals smallest; the distance between the tip of the 

 snout and the fore limb is contained one time and one third to 

 one time and two fifths in the distance between axilla and groin ; 

 praeanals a little enlarged. Tail nearly twice as long as head 

 and body. Limbs strong, the hind limb reaches the elbow or 

 the axilla; digits moderate, depressed, the distal part sub- 

 cylindrical ; fourth toe with 50 smooth lamellae below. 



Olive above, with four broad black stripes, the outer pair 

 beginning at the end of the snout, passing through the eye. 

 Lower parts bluish-white ; throat and limbs below bluish or 

 greenish. Length of head and body 59 mm.; tail no mm. 



Type-specimens examined in the British Museum. 



Habitat: Ferguson Island! d'Entrecasteaux Archipelago; 

 Rossel Island ! , Louisiade Archipelago. 



