130 



Descriptions of New Species of Fossil 

 mollusca from the miocene lime- 

 STONE NEAR EdITHBURG, 



(Including Notes by the Late Professor Ralph Tate.) 



By Herbert Basedow. 



[Read June 3, 1902.] 



Plate II. 



On July 2, 1901, I read, at a meeting of this Society, a 

 pggper "On the Occurrence of Miocene Limestones at Edith- 

 burg, Szc," containing in an appendix a list of fossil mollusca, 

 some of which were marked as new sipecies, with MS. names. 



The late Professor Ralph Tate had kindly promised to 

 describe the new species I had obtained from this neighbor- 

 hood, but owing to his lamented death this promise was but 

 partially fulfilled. In this paper I submit descriptions of the 

 species marked as new in that appendix, which include (where 

 indicated) the work of the late Professor as far as he had 

 advanced u^p to the time of his death. 



Campanile triseriale, spec. nov. PI. ii., fig. 1. 



Shell large, solid, tapering; about 14 flattened whorls, 

 rapidly widening anteriorly; constricted at the suture. 



The characteristic ornamentation of the whorls consists of 

 three well-defined, elevated, coarsely-granulose ribs, the pos- 

 terior of which being the most coarsely and the median the 

 least coarsely granulose. The obliquity of the granulations 

 of the respective ribs varies from almost nil in the posterior 

 rib (the granules being approximately circular in section) to 

 about half a right angle in the anterior rib (the granules nar- 

 rowly oval). The interspaces between the granular ribs are 

 in general ornamented by a set of fine, equally strong spiral 

 threads, while the space between the anterior and median ribs 

 is conspicuously divided by a very much stronger thread. Base 

 flattened, angulated at the edge and finely decorated by suc- 

 cessive lines of growth. Aperture and apex fractured. 



