Type is a single specimen but the collection of worms examined by Fauvel was from intertidal fine sand, slightly ... [details]
Grube (1870) used the spelling 'haemasoma'. Fauvel (1902) also misspelled 'haemasona' as 'haemasoma' in a synonymy ... [details]
One specimen. River Casamance estuary (Senegal, Atlantic Ocean), 12.5593, -16.71, 6 km upstream from its mouth. ... [details]
Estuary of the Casamance River, Senegal, West Africa, 6 kilometers from its mouth. Mouth is at geolocation 12.5561, ... [details]
The holotype is deposited at the MNHN with the number POLY TYPE 179 ot 723, according to Solis-Weiss et al. (2004). ... [details]