53 



scales above, 3 to 5 beneath. Limbs long and slender; digits 

 with a rudiment of web, strongly dilated, below with undivided 

 curved lamellae. 



Greyish-brown above; a white, dark-edged vertebral line, 

 divided on the neck, extending to each eye. Tail with white 

 annuli ; if reproduced, the tail shows longitudinal lines of a dark 

 brown and a whitish colour. Lower parts lighter, dotted with 

 brown. Length of head and body 130 mm.; tail 135 mm. 



Nom. indig. Tjitjak traban. 



Habitat: Java (Preanger)? '); Timor!; Ambon!; Ceram!; 

 Coram; Buru!; Nusa Laut!; Pulu Kelang!; Batjan; Ternate!; 

 Halmahera; Morotai!; Misol; Aru Islands; Kei Islands; Waigeu; 

 New Guinea (Fak Fak, Mansinam, Dorei, Andai, Mt. Arfak, 

 Koime river!, Humboldt Bay!, Djamna, Lake Sentani!, Lorentz 

 river!, Mimika river, Stekwa river, Fife Bay, Astrolabe Bay, 

 Bogadjim, Sattelberg); Schouten Islands (Mysore); Jobi, Valise 

 and Tumbler Islands. — Ferguson Island; Trobriand Island; 

 St. Aignan; Rossel Island; Bismarck Archipelago; Solomon 

 Islands; St. Cruz Islands. 



Tree-gecko. The eggs are laid in pairs; they have a length 

 of 13 — 14 mm., a breadth of 12 mm. and show one flat face. 



Specimens with a violet tint and two brown stripes on the 

 back, violet and brown bands on the tail have been named 

 Platydactylus bivittatiis by Dum. Bibr. (Erpet. Gener. Ill 1836 

 p. 334); they originated from New Guinea and Waigeu. Peters 

 & Doria (Ann. Mus. Civ. Geneva XIII 1878 p. 368) described 

 specimens with fewer femoral pores, less numerous tubercles 

 on the back, each annulus of the tail with 10 — 12 rows of 

 scales above, 3 — 4 below, and a greyish-or reddish-brown colour, 

 variegated with darker tints, a light vertebral band, sometimes 

 indistinct on the neck and bordered by a blackish band. This 

 form is given by Boulenger in his Catal. Liz. I 1885 p. 186 under 

 the name of Gecko vittatus Houtt. var. bivittatiis, found in 

 New Guinea, Pelew and Solomon Islands, but it cannot be 

 held up as a variety, for other examples show the morpho- 

 logical characters, named above, together with the coloration 

 of a typical vittatus; it cannot be a geographical variety either, 

 as the two forms occur both in the same islands. 



l) The occurrence in W. Java of this species, quoted by Werner (Zool. Jahrb. 

 Syst. XXVIII 1910 p. 286) seems doubtful to me (see Nelly de Rooy, Bydragen 

 Dierkunde Afl. 19 1913, p. 21). 



