NO. 8 HANNA AND HERTLEIN : MOLLUSCA 135 



Island shells have a series of longitudinal, light-yellowish stripes, similar 

 to those described and illustrated by von Martens on the species which 

 he named strigosus,-'^ the arrangement of the teeth on the columella, 

 however, differs greatly from that species. 



21 von Martens, C. E., Biol. Centrali-Americana, Moll., 1900, p. 560, pi. 43, 

 fig. 9. "W. Costa Rica; in a small tributary of the Rio Boto, Golfo Dulce, on 

 dead leaves (Pittier, March 1896)." 



