Moen (2006) states: "The name Hydra, and the later Hydroides, seem to refer to the many-headed aquatic snake that ... [details]
Not stated, but the name for H. norvegica is evidently derived from the country of collection, Norway (Latin ... [details]
The genus Hydroides is feminine. This is because Gunnerus clearly treated it as feminine when he used the feminine ... [details]
Trøndelag region, Norway. Trondheimsfjord off Statsbygd (~63.4687 ~10.011) is one of three locations mentioned by ... [details]