( 483 ) 



<i:5. Butorides javanicus (Horsf.). 

 One inalc from Bniiguraii. (India and Malayan Islands.) 



Sirhassen. 



Sirhassen. 



Bungiirai 



<i4. Erythra phoenicura (Penu.). 



6."i. Charadi'ius fulvus Gm. 



•ill. Charadrius squatarola L. 



Conclusions. 



As the foregoing list of birds sIkiws, they belong mostly to specie.s wliicli arc 

 distributed over tlie ifalai/ Pi^tiiiis/ila and Borneo, bnt (judging from the present 

 material) the ornis is nndoubtedly mon' Malarcan than Bornean, as at least five of 

 the species, ont of the sixty-six, are identical with the Malay Peninsula species, 

 while representative forms of them inhabit Borneo ; onlj' one species (Artumus 

 lruco(iitst(>r~) is known from Borneo and not from the Malay Peaiusnla, but this 

 bird is very widely spread (see No. 33 of my list), and not at all esi)ecially Bornean. 

 Moreover some of the new species are more closely allied to Malaccau than to 

 Bornean birds. The collection of birds from Sirhassen is, I should say, not 

 complete enough to conclude much from it, but the material before me does 

 not represent a more Bornean character than that from Bnnguran. 



It were probably the mammals which led Mr. Everett to the conclusion 

 that Sirhassen was more Bornean than Bungnran, as expres,sed in his letter 

 to Mr. Rothschild: but more about this will be said in the article on the mammals, 

 which will be ])nblished in this journal. 



Mr. Everett has also forwarded to the British Museum a collection of 

 landshells from Bungurau and Sirhassen, and Mr. Edgar A. Smith was kind 

 enough to give me a note about the geographical relationsiiip of the landshells. 

 as borne out by the collection; for which I am very thankful, and which ] am 

 glad to quote here, as I am well aware of the great importance of the distribution 

 of landshells, if zoo-geogra])iiical areas are to be defined, although that imjiortauce 

 must not be overrated, considering how easily shells may be transported in different 

 ways from one jilace to another. 



Mr. Edgar Smith's note runs as follows : 



" The preliminary examination of tlie collection of landshells from the Natuna 

 Islands obtained by Mr. A. Everett has led me to the conclusion that this part 

 of the fauna has reri/ close r,'lationshi]i with both that of the Malay Peninsula anil 

 the island of Borneo; indeed the affinity may be regarded as fairly equally balanced 

 between the two. All the genera (with one exception) from the Nafiuuis occur 

 in both the above said h)calities, and three or four species also are common to 

 all three. The Sirhassen shells do not exhibit a Bornean more than a .Malayan 

 facies, nor are the Bnnguran sjiecies more IMalayan than Bornean. indeed a 

 considerable priqiortion of the s])ecies arc common to both islands." 



