1895.J ON LAND-SHELLS PHOM BuftNKO, tic. 97 



in 1886. They agree very closely. The difference is that in the 

 case of Phijllomedusa the egg-masses are glued between leaves over- 

 hanging water, while in the case of HijJa nehulosa they are in the 

 sheaths of old banana-leaves ; this is of course of secondary 

 importance. 



But this agreement, together with my experiments above quoted, 

 makes me doubtful whether, even in the case of Phifllomedum, the 

 egg-masses are suspended from leaves in order to facilitate direct 

 dropping of the larvae into the water below. Naturally that is the 

 first idea which occurs to the observer. But how, then, to explain 

 the result of the experiment made with Hifhi nehulosa ? Is it not 

 rather the coolness and moisture which the vicinity to water aft'ord 

 that are needed by tlie egg-masses than actual resort of the larvae 

 to water? Does not the pronounced dislike of the young ////?« 

 nehulosa to remain in that element speak in favour of my sup- 

 position ? 



3. On a Collection of Land-Shells from Sarawak, British 

 North Borneo, Palawan, and other neighbouring 

 Islands. By Edgar A. Smith. 



[Received Januarj- 9, 1895.] 



(Plates n.-IV.) 



The species mentioned in this report form part of collections 

 received principally from Mr. A. Everett during the last two years. 

 As many as fifty out of the eighty-three enumerated appear to be 

 undescribed, and form a very interesting addition to the known 

 faunae of their respective localities. The majority were collected 

 by Mr. Everett in various parts of Sarawak and British Xorth 

 Borneo, the others being obtained in some of the small islands off 

 the coast and in the large island of Palawan. 



Up to the present time nearly two hundred species of land- 

 shells have been described from Borneo, and forty additional 

 species are characterized in the present paper. They are nearly all 

 from different districts in Sarawak and tiie northern parts of the 

 island, only a few having been collected by Mr. Carl Bock in the 

 south-east. AVhen the rest of the island is explored it is probable 

 that a very rich fauna will be discovered. The types of all the 

 new species have been presented to the British Museum by 

 Mr. Everett. 



In the most recent list of the fauna of Palawan ' only thii'ty 

 different species were enumerated. In a subsequent paper by the 

 present «Titer '■ six additional species were quoted, and twelve 

 others are now added to the list, making a total of forty-eight 

 species known from the island. I believe that all the eighteen 

 species collected by Mr. Everett were from the southern part of 



' Eev. A. H. Cooke, Proc. Zool. Soc. 1892, pp. 462-463. 

 2 Ann. Mag. Nat. Hist. 1893, vol. xi. pp. 347-353. 



Peoc. Zool. Soc— 1895, No. VH. 7 



