Four Abnormal Land Shells from Israel

摘要

Shell collections rarely exhibit abnormal specimens and only a handful of collectors focus on them. Although there is much to learn from these aberrant forms, they are usually considered to be less attractive or aesthetic and thus discarded in the initial stages of the long process which brings specimens to dealers and then to our cabinets and display cases. In reality, less than perfect land and marine molluscs are much more common than is reflected in our collections.