Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique Author Muratov, Igor V. text African Invertebrates 2010 2010-12-31 51 2 255 255 http://www.bioone.org/doi/abs/10.5733/afin.051.0203 journal article 10.5733/afin.051.0203 2305-2562 10268367 Urocyclus kirki Gray, 1864 Fig. 65 Urocyclus kirki : Gray 1864: 251 (Near the mouth of the River Zambezi, Mozambique ). A common eastern African species, with a general distribution from southern Tanzania to Zululand in South Africa . Found at a single station inland. Differs from all other species of the family by the large, muscular diverticulum of the atrium with a single large calcareous dart inside.