30 BARBOUR: ZOOGEOGRAPHY. 



form, Hurria rhynchops, while from the other islands we have records as follows: 

 — from Lombok seven; from Flores nine; from Ombaai five; from Timor 

 sixteen and from Sumba seven. Typhlops polygrammicus has a distribution 

 similar to that of Varanus timorensis, except that it is recorded from various 

 parts of Australia instead of being confined to Queensland. Liasis fuscus, a 

 species of a Papuasian genus, occurs on Timor and also in British New Guinea 

 and Queensland; L. macloti is found upon Timor and the two small islands of 

 Savu and Samao, lying near by. Python timorensis occurs on both Timor and 

 Flores. Naia naia, using the name in its broad sense, has been found in this 

 group on both Flores and Ombaai. The distribution of the genus Calamaria, so 

 far as it goes, resembles that of the saurian Gonyocephalus; and although 

 members of the genus occur on Java on the one side, and in Celebes to the 

 north, not a single one has been reported from this group of islands. Here again 

 the genus is reported as existing on the Philippines. The genus Cylindrophis 

 has a somewhat peculiar distribution. The records which I have found are as 

 follows : — from Burma, Cochin China, Siam, Malay Peninsula, Sumatra, 

 Borneo, Java, Celebes, and Batjan, but on neither the Philippines nor any one 

 of the Lesser Sunda chain. . A single peculiar species, however, occurs on Lom- 

 bok and another in Djampea; they are respectively C. opisthorhodus and C. iso- 

 lepis, so that the distribution is not in reality a discontinuous one after all. 



So far as known, comparatively few forms are confined to a single island. 

 Thus, we know only two peculiar lizards on Flores; three on Timor and one on 

 Sumba. None has been described as peculiar to Bali, Lombok, or Ombaai. 

 Among snakes there is one strictly peculiar species each upon Lombok, Flores, 

 Timor, and Sumba. 



Regarding the amphibians, I take van Kampen's records directly as they 

 stand; though he bases several of them, as he himself remarks, only upon 

 Bleeker's notoriously inaccurate reports. We find the following: — upon Bali, 

 two species; upon Lombok, five; upon Flores, six, with one peculiar species; 

 upon Ombaai, two; Timor, three; and Sumba, three. Of peculiar interest is 

 the single species of Sphenophryne, S. monticola, which is confined to Lombok. 

 This distinctly Papuan genus occurs elsewhere, outside of New Guinea, only 

 upon Djampea and Celebes, where two species occur. This is another excellent 

 piece of evidence of a land connection, though it does not, of course, necessarily 

 suggest a direct connection between Celebes and Lombok; it may be mentioned, 

 however, that the long string of Paternoster or Tenga, and Postilion or Sabalana 

 Islands stretch in a direct line between Lombok and Celebes. Hylidae, absent 



