Marriage, Lowell D., and Oregon. Fish Commission. The bay clams of Oregon:  their identification, relative abundance, and distribution In Educational Bulletin (Oregon. Fish Commission). Vol. no.2. Portland, OR: Oregon Fish Commission, 1958.

Marriage, Lowell D., and Oregon. Fish Commission. The bay clams of Oregon:  their economic importance, relative abundance, and general distribution In Contribution (Oregon. Fish Commission) . Vol. no. 20. Portland, Or.: Oregon Fish Commission, 1954.