Nybelinia sp. A

Beveridge, Ian, Bray, Rodney A., Cribb, Thomas H. & Justine, Jean-Lou, 2014, Diversity of trypanorhynch metacestodes in teleost fishes from coral reefs off eastern Australia and New Caledonia, Parasite (Paris, France) 21, pp. 1-19 : 3

1. Nybelinia sp. A ( Fig. 8 )

Material examined: plerocercoids from Herklotsichthys quadrimaculatus (Rüppell, 1937) , New Caledonia, MNHN JNC 2669C1, 2671A1.

Scolex length 1200, pars bothrialis 580, pars vaginalis 520; bulbs ovoid, bulb length 250; velum 160; metabasal hooks: length 15, base 10.

Remarks

This species is similar to N. queenslandensis , but all measurements including those of the hooks are substantially smaller. In addition, the shape of the hooks differs ( Fig. 8 ). The hook shape aligns the species with N. lingualis (Cuvier, 1817) , N. bisulcata (Linton, 1889) , N. anthicosum Heinz & Dailey, 1974 and N. hemipristis Palm & Beveridge, 2002 , but N. lingualis and N. bisulcata differ in having much larger scoleces (2025–2700 and 2500, respectively) and bulbs (365– 425 and 450–505, respectively) while the latter two species have much larger hooks (25–40). Consequently, these plerocercoids most closely resemble N. lingualis but cannot be assigned to this species with certainty.

Figures

Figures 8–11. Tentacularioid metacestodes incompletely identified. 8. Nybelinia sp. A from Herklotsichthys quadrimaculatus (Rüppell, 1937). Scolex, basal and metabasal armature, hook profiles.Scale-bars:scolex and tentacle, 0.1 mm; hooks,0.01 mm.9. Nybelinia sp. B from Parupeneus multifasciatus (Quoy & Gaimard, 1825).Scolex, basal and metabasal armature,hook profiles.Scale-bars:scolex and tentacle, 0.1 mm; hooks, 0.01 mm.10. Heteronybeliniasp.Cfrom Sufflamenfraenatus (Latreille,1804).Scolex,bothrialmetabasal armature andantibothrial metabasal armature. Scale-bars: scolex 0.1 mm; hooks 0.01 mm. 11. Nybelinia basimegacantha Carvajal, Campbell & Cornford, 1976, specimen from Neoniphon sammara (Forsskål, 1775). Scolex, basal and metabasal armature. Scale-bars: scolex 0.1 mm; tentacle 0.01 mm.