COI haplotype network of the 13 haplogroups (different colours) of Niphargus fontanus. Open circles represent haplotypes not present in our sequences. The haplotypes marked with a blue star contain one incomplete sequence each. The haplotype marked with a red star contains a sequence with one undissolved base pair.

 
 
  Part of: Weber D, Wendt M, Schmitt T (2025) Extra-Mediterranean glacial refugia and range dynamics in a groundwater amphipod species, Niphargus fontanus Spence Bate, 1859, in western Central Europe. Arthropod Systematics & Phylogeny 83: 15-29. https://doi.org/10.3897/asp.83.e116160