POSTSCRIPT. 167 



the condition which serves to separate the Malayan from the Papuasian subre- 

 gions. This zone may be about equally well defined for any of the groups of land 

 animals, and the boundaries for the distribution of the several groups coincide 

 with reasonable accuracy. 



POSTSCRIPT. 



Since this paper was written several reports upon the herpetology of the 

 East Indies have been received. The records for these new species and new 

 localities have been added to the table of distribution. These additions have 

 naturally made differences, in some cases, regarding what is said in the body of 

 this work regarding the number of autocthonous species in the various islands, 

 and the range of distribution for some other species. It was thought best, how- 

 ever, to bring the information in the table as nearly down to date as possible. 

 Every effort has been made to have them complete and accurate. The writer 

 begs that readers noting errors and omissions will communicate them to him, as 

 it is hoped to republish the table from time to time. 



The reports recently received are those of Nelly de Rooy (Nova Guinea, 

 1909, ,5, livr. 3, p. 375-383, pi. 17-18), and two by T. W. van Lidth de Jeude, 

 (Nova Guinea, 1911, 5, livr. 4, 1911, p. 519-530, and 9, livr. 2, p. 265-287, pi. 8). 

 These reports are all upon the rich booty of the various recent expeditions which 

 have been exploring Netherland's Papua under the auspices of the Dutch gov- 

 ernment and scientific societies. Many important new species are described, 

 and the ranges of many other known species from Malaysia, Queensland, and 

 even the Philippines, have been extended to include Papua. 



Besides these purely herpetological reports, another has appeared by Max 

 Weber, "Die fische der Aru- und Kei-Inseln. Ein beitrag zur zoogeographie 

 dieser inseln." Abh. Senck. naturf. ges., Frankfurt, a. m., 1911, 34, p. 3-49, 

 taf. 1-2. This analyzes very carefully the fish faunas of these two groups, 

 with special reference to those forms which are known to be absolutely confined 

 to fresh-water. Weber's conclusions are summed up in the closing sentence of 

 his remarks upon the zoogeography of the island. "Wohl aber diirfen wir nach 

 dem vorliegeden Materiale schliessen, dass die Slisswasserfische von Hoch-Kei 

 durchaus indischen Charakters sind und ganz verscheiden von denen der Aru- 

 Inseln, welche letztere einen ausgesprochen australischen (papuanischen) Cha- 

 rakter besitzen." This substantiates what is stated earlier in this paper 

 regarding the difference in the faunas of these two groups, when it was pointed 

 out that there was a great difference in the reptilian and amphibian faunae of 



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