Checklist for Subclass Micrura Ehrenberg, 1831 and region Helgum (Härnösand, Västernorrland County, Sweden)
List of families for Helgum 2 Families width 2 Species
Genera for Helgum 2 Genera with 2 Species
Species list for Helgum 2 Species
Subnodes of Micrura with occurrences in Helgum
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