title: Spatial Distribution of Phoronopsis viridis Hilton.
abstract: Individuals of the species Phoronopsis viridis Hilton exhibit an even distribution within their colonies. The distance between nearest neighbors is probably related to the space required for the operation of the lophophore. Distributions of other marine invertebrates are discussed briefly, together with the paleoecological implications of such knowledge.
authors.forename: R G
authors.initials: RG
authors.lastname: Johnson