i8 S 



Dark brown above, a dark brown dorso-lateral band; flanks 

 brown, with whitish vermiculations, bordered below by a 

 series of black spots; lips dark brown, spotted with white. 

 Lower parts pale brown; throat, praeanals and tail spotted 

 with dark. Length of head and body 29 mm.; tail 34 mm. 



Habitat: New Guinea (Near Sepik river 1570 M., Sermo- 

 wai river!). 



23. Lygosoma louisiadense Boulenger. 



Lygosoma louisiadense^ Boulenger, ADD. Nat. Hist. (7) XII 1903, p. 433. 



Snout short, obtuse; lower eyelid scaly; ear-opening oval, 

 smaller than the eye-opening, no lobules. Nostril in the nasal ; 

 no supranasals; a single anterior loreal; frontonasal not quite 

 twice as broad as long, forming a long curved suture with the 

 rostral, and a short one with the frontal ; latter a little shorter 

 than frontoparietals and interparietal together, narrowed behind, 

 in contact with the two or three anterior supraoculars; five 

 supraoculars ; eight supraciliaries ; frontoparietals and inter- 

 parietal almost equal; parietals in contact; nuchals gradually 

 passing into dorsals; third to fifth upper labials below the 

 eye. Body with 24 or 26 scales round the middle, dorsals 

 largest, dorsals and laterals with very small asperities; the 

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

 contained one time and one fourth or one time and one fifth 

 in the distance between axilla and groin ; praeanals not enlarged. 

 Tail one time and a half to nearly two times the length of head 

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

 the shoulder; digits long, slender, compressed, fourth toe with 

 36 39 narrow smooth lamellae below. 



Brown above, a lighter vertebral stripe, with dark brown 

 spots or bars across it; a light dorso-lateral band, beginning 

 above the eyes; a dark brown lateral band below, passing 

 through the eye; a longitudinal black spot with light centre 

 above the axillary region ; limbs with dark brown annuli. 

 Lower parts white, throat with dark spots or longitudinal 

 lines. Length of head and body 44 mm. ; tail 82 mm. 



Type-specimens examined in the British Museum. 



Habitat: Rossel Island of the Louisiade Archipelago!. 



