LAND- AND FRESHWATER SHELLS. 155 



more L. perlevis, that both may be however varieties of 

 one species. The specimens are much smaller than the 

 figure of Lessoni Desh. and of Strangei Ph. which should 

 also be a synonym , and may be not full-grown ; so I 

 give them the name applied by Prof. v. Martens. 



16. Physa moluccensis Lesson. 



Martens , Ueber die Ostasiatische Limnaeaceen ; Malak. 

 Blatter, 1867, p. 211 {Physa moluccensis^ p. 218). 



Localities : Freshwater lakes H«ar Soesoek and Ainiba , 

 central Timor. 



The specimens are slightly more inflated than a specimen 

 from Delhi, Timor, collected by Prof. v. Martens and 

 kindly sent me for comparison; for the rest they agree 

 sufficiently. 



17. Cerithiclea ornata A. Adams. 



Reeve, Couchologia Iconica, sp. 22. 

 Locality: Rivers of North West Soemba. 



18. Melania punctata Lamarck. 



Brot, Mon. Melania, in Martini Chemnitz, Syst. Conch. 

 Cabinet, 11^ Ausg. p. 168; Taf. 20, fig. 4, 4^. 



Locality: Koepang, Timor. 



Numerous specimens are collected at the just named 

 locality; they are all covered with a very thick incrustation. 

 They vary in sculpture and painting , some specimens being 

 almost without brown spots or streaks , while others are 

 richly ornamented. Many have rather distinct spiral striae 

 and a few have also small ribs on the upper whorls ; 

 though this does not agree with the description , Dr. 

 Brot , after examination , left them with the more typical 

 specimens. 



Notes from the Lieyden ]\Xuseiixn, Vol. XIV". 



