82 BARBOUR: ZOOGEOGRAPHY. 



Gekko gecko (Linn£). 

 LiNNfi, Syst. nat., ed. 10, 1758, 1, p. 205. Boulenger, Cat. lizards Brit, mus., 1885, 1, p. 183. 



Tyye locality: — "Habitat in Indiis, frequens etiarn in domibus." 

 Specimens in hand are from Buitenzorg, Java; from Katha and Thaybeit- 

 kyin, Burma. On the mainland it is common in houses, but also found in hollow 

 trees in the forest. In Java it is rare. Bryant got only two from Buitenzorg, 

 and one from Depok. It is not, however, absent from Java, as Werner would 

 have us believe, when he claims that G. stentor replaces this species in Java; 

 whereas it occurs on Sumatra to the exclusion of the other species. 



Gekko stentor (Cantor). 

 Cantor, Cat. Malay, rept., 1847, p. 18. Boulenger, Cat. lizards Brit, mus., 1885, 1, p. 184. 



Type locality: — Pinang. 



Common about Buitenzorg. I got a number there; while Bryant also got 

 one, as well as ten from Daru, Bantam, and the same number from Depok. 



Gekko vittatus Houttuyn. 



Houttuyn, Verh. Zeeuw. gen. Vlissingen (Middleburg), 1782, 9, p. 325, pi. — , fig. 2. Boulenger, Cat. 

 lizards Brit, mus., 1885, 1, p. 185. 



Type locality: — " De Afkomst is zekerlyk uit de Indien." 



This species is represented in the collection by a large example, quite typical, 



from Ambon; another from Wahaai, Ceram; a series of twelve from Djamna, near 



Humboldt's Bay, New Guinea; and one from Ansus, Jobi Island. There are 



specimens from Faro Island, Solomons in the Museum. The specimens from 



the two places last mentioned are typical of Gekko bivittatus (Dum. & Bibr.), 



which Boulenger relegates to subspecific rank. As the two forms overlap in 



range, in fact, each seems to occur more or less promiscuously over the whole 



area where the species is found, it seems to represent the case more fairly to 



consider the whole series as belonging to one variable species, and to recognize 



no subspecies at all. The difference lying in color, not in structure, they can both 



hardly be true species; and subspecies can not occur distributed in this way. 



Ptychozoon kuhli Stejneger. 

 Plate 7, fig. 24. 

 Stejneger, Proc. Biol. soc. Wash., 1902, 15, p. 37. Boulenger, Cat. lizards Brit, mus., 1885, 1, p. 190. 

 Type locality: — Originally described by Creveldt (Mag. naturf. fr. Berl., 

 1809, 3, p. 266, pi. 8), as Lacerta homalocephala. Stejneger gave a substitute 

 name after the founder of the genus, as Creveldt's was preoccupied. I do not 

 know the original description from autopsy. 



