O nowym gatunku ślimaka z wapieni astartu Sulejowa

Abstract

ON A NEW SPECIES OF GASTROPOD FROM THE ASTARTIAN LIMESTONES AT SULEJóW (CENTRAL POLAND)

A new species of Ptygmatis convexospirata has been found do the Astartian limestones at Sulejów, in the northwestern continuation of the Święty Krzyż Mountains. Its characteristic feature which made it possible to distinguish it from other species if genus Ptygmatis are its vary convex whorls and its different dimensions of the growth line.