Grillotia-Heroniensis, Sp-Nov, and Grillotia-Overstreeti, Sp-Nov, (Cestoda, Trypanorhyncha) From Great-Barrier-Reef Fishes

Abstract

Two new species of Grillotia are described from fishes collected from Heron I., Australia. The plerocerci of Grillotia heroniensis, sp. nov., were found in the mesenteries of Epinephalus quoyanus (Valenciennes, 1830) and Lethrinus nebulosus (Forsskal, 1775). This species has five hooks per principal row, three intercalary hooks, a longitudinal band of small hooks, a distinctive basal armature, and bulbs which are only slightly longer than wide. Grillotia overstreeti plerocerci were found in the mesenteries of Choerodon cyanodus (Richardson, 1843) and C. venustus De Vis, 1885, and have six principal hooks, one and two intercalary hooks, a longitudinal band of small hooks which end midlength along the tentacle and which extends to the base, and a distinctive basal armature.