LEPTOPOMA MANADENSE VAR. 34 



NOTE IV. 



ON A NE¥ VARIETY OF 

 LEPTOPOMA MANADENSE PER. 



M. M. SCHEPMAN. 



The specimens of a lot of a Leptopoma, collected by Baron 

 von Rosenberg at Gorontalo, Celebes, have the general ap- 

 pearance of some varieties of L. vitreum Lesson, but their 

 columellar margin is simple, I had compared them with the 

 species of the genus known from Celebes, but I could 

 not identify them with any of these. So I sent a few 

 specimens to Prof. E. von Martens and asked his advice, 

 and this author declared them to be a variety of L. mana- 

 dense Pfr. (As I had compared them with typical speci- 

 mens of this species agreeing with the figure in Pfeiffer's 

 Novitates conchologicae, Vol. IV, pi. 128, fig. 9, I did 

 not come to this identification). The specimens indeed agree 

 rather well with the figure of von Martens' Ostasiat. 

 Landschn. (PI. 2, fig. 8), but as this figure differs much 

 from the typical one and from the original description, 

 I thought it might be somewhat erroneous; now this 

 figure may serve for the new variety, which I describe 

 under the name of: 



Leptopoma manadense Pfr. var. ohsoleta. 



The shell differs from typical ones by the peripherical 

 keel, which in most of the specimens is only indicated at 



Isfotes from tlie Leyden Museuin, Vol. XXI. 



