Known only from Cape Cod Bay, Massachusetts, USA [details]
Subtidal sands : Mean particle size between 0.336 mm and 0.795 mm [details]
Subtidal sands : Mean particle size between 0.466 mm and 0.795 mm. [details]
"codensis" from Cape Cod Bay, Massachusetts, U. S. A. [details]
'welchi', in honor of P.S. Welch, lon an outstanding American authority on the Enchytraeidae [details]
According to Lasserre (1971): The species conforms to the original description (Lasserre 1964, 1966). This species ... [details]