It is probably restricted to the upper continental shelf, in sandy silt substrates (mean particle size about 30 um). [details]
It occurred with maximum frequency and abundance at a depth of 2000 m in substrates of small particle sizes (clayey ... [details]
P. intermedius occurred in very fine sand (mean particle size about 100 um). [details]
"-eidos, -oeides, -oides" Gr. =like, resembling; i.e. superficial resemblance to Adelodrilus Cook, 1969 [details]