A Taxonomic and Nomenclatural Puzzle
by Guido T. Poppe
ISBN 9783948603076, published in 2020 by ConchBooks, Germany and Conchology.be, paperback in laminated covers, 21 by 29.5 cm., 8 by 11.75 inches, 86 pages, 39 pages are full-size photographic plates of specimen shells, additional color and b/w photgraphs in text
A guide and revision of the systematics of these lovely terrestrial snails t found in the Philippines. Many of these shells live in isolated pockets where they have evolved into forms and subspecies separable by their localities. Many of these mollusks are now be extinct, while the loss of their habitats endangers other populations.