0.5–337 m (but probably also 800 m and 1094 m). [details]
North European waters: from northern Norway to northern Portugal; Faroe Islands; southern Iceland. [details]
"The specific name nordica refers to the high-density population of worms in the Nordic waters around Norway, ... [details]
Silty tubes in soft sediments, between 0.5–337 m. [details]
1868. According to Radashevsky (2021) the work of Claparède published in book form in 1868 predates the journal ... [details]
Bay of Naples, Mediterranean Sea. Radashevsky (2021: 5 of 23) gives this account of the location: "Claparède ... [details]
Grøtsund Fjord, Troms og Finnmark, Norway, Norwegian Sea, Atlantic Ocean (69.795°N, 19.317°E), 92 m. [details]