Succineidae

Succineids untangled

The Neotropical succineid systematics “is permeated with misconceptions and contradictions” (Arruda & Thomé, 2008)*. It is one of those groups which are often identified on the basis of their anatomy; the Veronicellidae - specialism of the second author - is one of the others.

In their paper two species of
Omalonyx, occurring partially sympatrical, are untangled using both morphological and anatomical characters.
Arruda2008
This paper is an example how laborious it can be to know with which species you may be dealing. There are many similar problems to be solved within this family, which has a broad Neotropical distribution.

Afbeelding 1 09-12-18
Reference:
Arruda, J.O. & Thomé, J.W., 2008. Revalidation of Omalonyx convexus (Heynemann 1868) and emendation of the type locality of Omalonyx unguis (Orbigny 1837) - Archiv für Molluskenkunde 137: 159-166.