Fritz Haas

Biographical details

Fritz Haas New land mollusks from Madagascar and Mexico (1961)

Solem, the species hertleini differs from the matermontana group by being larger (13.2 mm. against 9.5-12 mm.) , being always shouldered at the periphery, showing stronger ribs, having a wider umbilicus (one-third of diameter against one-fifth) , having 63⁄4 whorls against 53⁄4, and almost entirely lacking the inner branch of the V-shaped lamella on the parietal wall.
Source: Wikisource

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