Correspondence: Masaaki Machida
Masaaki Machida
Department of Zoology, National Science Museum, 3-23-1 Hyakunincho, Shinjuku-ku, Tokyo 169, Japan.
Abstract
Eight species of digenean trematodes of the families Waretrematidae, Haploporidae, Haplosplanchinidae and Hemiuridae are repated from mullets in Japanese and adjacent waters. Waretrema piscicolum Srivastava, 1939 (Waretrematidae) and Hymenocotta mulli Manter, 1961 (Haplosplanchinidae) are newly recorded from Japanese waters. Six new species are described: Carassotrema philippinense sp. nov. (Waretrematidae) from the intestine of Mugil cephalus in Philippine waters, Dicrogaster japonica sp. nov. (Haploporidae) fromn the intestine of Mugil cephalus in Japanese waters, Haploporus spinosus sp. nov. (Haploporidae) from the intestine of Crenimugil crenilabis in Japanese waters, Haploporus magnisaccus sp. nov. (Haploporidae) from the intesitine of Crenimugil crenilabis and Mugil cephalus (?) in Japanese and Indonesian waters, Lecithobotrys stomachicola sp. nov. (Haploporidae) from the gastric cardia of Crenimugil crenilabis and Mugil cephalus (?) in Japanese and Indonesian waters. L. stomachicola has various shapes of caecum, from double to single.
Key words: digeneans; Waretrematidae; Haploporidae; Haplosplanchinidae; Hemiuridae; mullets.