Helminths of shorebirds from the Texas Gulfcoast. I. Digenetic trematodes from the long-billed curlew, Numenius americanus.

Trematodes found in 10 Numenius americanus from the Galveston area included Pelmatostomum americanum sp. n. (Echinostomatidae) from the intestine; Paratrema numenii gen. et sp. n. (Philophthalmidae) from the Bursa Fabricii and lower intestine; and the following previously known species, all representing new host records: Maritrema arenaria and Probolocorphye glandulosa (Microphallidae); Lyperosomum oswaldoi and L. sinuosum (Dicrocoeliidae); Cyclocoelum obscurum (Cyclocoelidae); Himasthla rhigedana (Echinostomatidae); and Parorchis acanthus (Philophthalmidae). New taxa are diagnosed and H. rhigedana is redescribed.