Description: English: Rugulina verrilli (Tryon, 1888); family Pendromidae. Date: 1888. Source:
https://www.biodiversitylibrary.org/item/77914 G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia; pl. 31 # 46. Author: G.W. Tryon.
