22 BARBOUR: ZOOGEOGRAPHY. 



Celebes, but Boulenger (Proc. Zool. soc. Lond., 1897, p. 206) has shown that the 

 specimens referred to that species by Peters and Doria, Miiller, and others, in 

 reality belong to Draco spilonotus Gthr., while the specimens that have been 

 referred to D. volans and D. maculatus should probably be referred to D. heccarii 

 Peters and Doria. The Javanese record for D. lineatus is also undoubtedly a case 

 of mistaken identity. Neither Dr. Stejneger nor I have been able to find the 

 authority for the occurrence of Hydrosaurus (Lophura) on Java. It certainly is 

 not known there either by the natives or resident Dutch naturalists, for I remem- 

 ber well the interest which the unpacking of some of my specimens from the 

 Moluccas aroused in the natives about Buitenzorg and Batavia. The record 

 for Tiliqua gigas is based on a specimen in the Berlin museum examined by 

 Boulenger (Cat. lizards Brit, mus., 1887, 3, p. 145), and said to have come from 

 Bantam. Of course, if this specimen ever came from Bantam, it was simply 

 one which had been brought there by some Malay prau trading from the Moluc- 

 cas. Years ago a considerable commerce went on in all sorts of live beasts, 

 which ultimately found their way to the Sunda Straits, where in years gone by 

 they were often bought and brought to Europe by the ships which at that time 

 stopped there regularly for wood, water, and fresh provisions. Live specimens 

 of this giant seine are often captured and sold. The record for Cornufer corru- 

 gatus in Java was wisely questioned by Boulenger (Cat. Batr. Sal. Brit, mus., 

 1882, p. 110). It is needless to add that the original report was never substan- 

 tiated. Recently van Kampen has shown that Hyla dolichopsis (Cope) turns 

 up occasionally in the Botanical Gardens, accidentally brought in with speci- 

 mens from Papuasia. This disposes of the last of the Papuan species supposed 

 to occur in Java. 



The fauna is purely Malayan, for the most part, probably wholly, derived 

 through Sumatra, the total number of species being much less than in Sumatra, 

 and curiously enough containing surprisingly few peculiar forms. The other 

 element in the biota, so well known and so often discussed, is the presence of 

 Malayan species which occur on the mainland, but not on either Sumatra 

 or Borneo. Van Kampen has remarked that the number of these species will 

 probably grow smaller, with which I concur; but there is a surprising number of 

 such species now, including some mammals, birds, reptiles, and amphibians. 

 Megalophrys hasselti, however, has been found on Sumatra recently, thus reduc- 

 ing this list by one species. 



Of these mainland forms, Crocodilus siamensis Schneider, a rare species 

 everywhere, has been reported from Siam, Cochin China, and Java. The last 



