A PHYLOGENETIC OVERVIEW OF THE GENUS VERTIGO O. F. MÜLLER, 1773 (GASTROPODA: PULMONATA: PUPILLIDAE: VERTIGININAE).
Eighteen recent putative Holarctic Vertigo could not be included as follows: Vertigo bermudensis Pilsbry, 1919, V. marki Gulick, 1904, and V. numellata Gulick, 1904, from the island of Bermuda have not been seen alive in over a century (John Slapcinsky, personal communication).
