Ching, H. L. (1978). New marine hosts for Parorchis acanthus, Cryptocotyle lingua, Maritrema megametrios, and Maritrema gratiosum, trematodes of birds from British Columbia, Canada. Canadian Journal of Zoology. 56 (8): 1877–1879.
New marine hosts for Parorchis acanthus, Cryptocotyle lingua, Maritrema megametrios, and Maritrema gratiosum, trematodes of birds from British Columbia, Canada
