Boreascotia megavesicula n. g., n. sp (Digenea : Hemiuridae : Lecithochiriinae) in the nototheniid fish Lepidonotothen macrophthalma (Norman) from the sub-Antarctic Atlantic

Boreascotia megavesicula n. g., n. sp. is described from the intestine of t he fish Lepidonotothen macrophthalma from the North Scotia Ridge, Sub-Antar ctic, Atlantic Ocean. The new genus has an ecsoma, placing it in the family Hemiuridae, and a distinct prostatic vesicle, placing it in the subfamily Lecithochiriinae, but is distinct from the other members of the subfamily i n having an elongate, tubular seminal vesicle, which reaches well into the hindbody and overlaps the anterior testis.