Haplognathia is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, and the Pacific Ocean.
Species:
Haplognathia asymmetrica Haplognathia belizensis Haplognathia filum Haplognathia gubbarnorum Haplognathia lunulifera Haplognathia rosea Haplognathia ruberrima Haplognathia rubromaculata Haplognathia rufa Haplognathia simplex
References