The species of the clausiliid genus Boettgeria O. Boettger, 1863, are re-evaluated and a hypothesis concerning their evolution and radiation on the Madeira Archipelago is forwarded. As a result, the genus is subdivided in two subgenera, one of which is herein described ( Loosjesiella n. subgen.). A cladogram summarizing the hypothetical evolution of the group is presented. The geological background and the mutual implications are discussed.

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Nederlandse Malacologische Vereniging

Eike Neubert, & Klaus Groh. (1998). Contributions to the nomenclature and phylogeny of Boettgeria O. Boettger, 1863, with description of Loosjesiella n. subgen. (Gastropoda: Pulmonata: Clausiliidae). Basteria, 62(3/4), 157–168.