Number y^t^ Skptkmp.kr 30. 1919 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Published by the University 



NEW SPECIES OF AMNICOLA FROAI GUATEMALA 

 By Bryant Waeker 



The Amnicolidse collected by Mr. A. A. Hinkley during his 

 visit to Guatemala in the w^inter of 1912-1913 were placed in 

 my hands for identification. Owing to the lack of material 

 deemed necessary for purposes of comparison, which has 

 only recently been obtained, the determination of the species 

 represented in the collection has been delayed until the pres- 

 ent time. 



The following species of Amnicola seem to be new. 



I 



Amnicola cisternina n. sp. PI. I, fig. i. 



Shell broadly conic, umbilicate, greenish horn color, smooth 

 and shining, the lines of growth being regular and very fine; 

 the apex is small and immersed so that it does not appear 

 when the shell is viewed from the front, thus it has then ap- 

 parently an obtuse apex; whorls 4>^, rounded and separated 



