15 



Gymnodactybis louisiadensis^ Boulenger, Ann. Mus. Civ. Geneva (2) XVIII 1897, 



p. 695. 

 Gymnodactylus louisiadensis^ Lonnberg, Ann. Nat. Hist. (7) VI 1900, p. 575. 

 Gymnodactylus louisiadensis^ Werner, Verh. Ges. Wien LI 1901, p. 603. 

 Gytnnodactyliis olivii^ Garman, Bull. Mus. Comp. Zool. Harv. Coll. XXXIX 



1901, p. I, pi. I, fig. I. 



Head large, oviform ; snout twice as large as the diameter 

 of the orbit; the distance between the orbit and the ear-opening 

 equals one time and a half its diameter; forehead concave; ear- 

 opening large, oval, vertical, one third the diameter of the 

 eye. Head granular with small conical tubercles on the occi- 

 put and temples; the granules enlarged on the snout and 

 supraorbital region. Rostral very large, one time and a half as 

 broad as high, with a median groove ; a large supranasal, 

 separated from its fellow by a small azygous shield; nostril 

 bordered by the rostral, the first labial and 4 nasals. Twelve 

 to thirteen upper labials, last three small, ten to twelve lower 

 labials; mental large, triangular; three pair of chin-shields; 

 median largest and broadly in contact behind the mental. 

 Throat granular. Body stout, elongate, covered above with 

 small granules, back with 26 longitudinal series of small conical, 

 keeled tubercles. Lateral fold with enlarged, round, smooth 

 tubercles. Ventral scales rather large, cycloid, imbricate, 40 — 42 

 across the middle of the belly. Male with an uninterrupted, 

 curved series of ^6 — 60 pores along the thighs. Tail round, 

 long, covered above with small scales and rings of keeled 

 tubercles in the basal part, beneath with large transverse 

 plates. Limbs long; digits strong, the basal part dilated and 

 covered beneath with transversely enlarged lamellae (10 — 16 

 under the fourth toe), distal phalanges compressed. 



Light brown above, with 4 — 7 broad, dark brown cross 

 bands, which are almost black at their posterior border; the 

 first one V-shaped, from eye to eye, the apex on the nape, 

 the second horseshoe-shaped. Tail with 5 broad blackish rings, 

 the interspaces and the distal part light. Lower surface dirty 

 white, each scale dotted with black. Length of head and body 

 116 mm.; tail 128 mm. 



Habitat: New Guinea (Gerekanumu, Sattelberg, along the 

 Lorentz river!). — Sudest Island; Rossel Island ; Ferguson and 

 Woodlark Islands; Solomon Islands; Queensland. 



