i56 MOLLUSCA OF THE 



22. Trochonanina conicoides Metcalfe. 



Metcalfe, Proc. Zool. Soc. Loudon, 1851, p. 71. — 

 Reeve, Couch. Icon. fig. 449. 



Locality: Coast of Sambas (Hallier). 

 One specimen. 



23. Amphidromus inversus Muller. 



Martens, Preuss. Exped. nach Ost-Asien , Landschn. p. 

 337. — Reeve, Conch. Icon. fig. 220 {Bid. contusus). 



Localities: Coast of Sambas (Hallier). — Smitau on the 

 Kapoeas River, and Roema Mauoeal on the southern foot 

 of Mount Keuepai (Büttikofer). — Mount Dadap (Moret). 

 — Sintang (Goedhuis). 



The specimen from the first named locality is sinistral, 

 the majority of the other specimens is dextral ; nearly all 

 are rather small, measuring only 43'/2 and 45 mill. 



24. Amphidromus perversus Linn. var. atricallosus Gould. 



Gould, Boston Journ, IV, p. 457; pi. 24, fig. 3. — 

 Smith, Proc. Zool. Soc. London, 1895, p. 115; pi. 3, 

 fig. 19. 



Localities: Mounts Sekedau and Dadap (Moret). 



The specimens agree better with Smith's figure than 

 w^ith Reeve's fig. 188. They have brown spots on the 

 white zone near the suture , which are not mentioned in 

 the descriptions at my disposal. 



25. Amphidromus Adamsi Reeve. 



Reeve, Conch. Icon. fig. 73. 



Localities: Foot of Mount Tiloeng, March 1894 (Büt- 

 tikofer). — Mounts Dadap and Sekedau, Ketoengau River 

 (Moret). — Sintang (Goedhuis). 



Most specimens agree better with Martens' figure (Ostas. 

 Landschn. pi. 21, fig. 5a) than with those of Reeve, which 

 represent other varieties. The specimen from Sintang much 

 resembles var. E. of Issel (Moll. Born. pi. 5, fig. 28). 



Notes from tbe Leyilen Museum, "Vol. X.VII. 



