Fig. 4 in Metazoan Parasites Infecting Xiphias Gladius From The Eastern Coast Of Algeria (Sw Mediterranean Sea)

Fig. 4. General morphology of the species Hysterothylacium aduncum (Rudolphi, 1802) observed under an optical microscope. A — anterior part showing lips (l); nerve ring (nr); oesophagus (e); intestinal caecum (ic); ventriculus (v); ventricular appendix (va) and intestine (i), lateral view. B — middle part showing oesophagus (e); intestinal caecum (ic); ventriculus (v); ventricular appendix (va) and intestine (i), lateral view. C — dorsal labium showing labia (lb) lateral view. D — posterior end showing spinous tail (sp); lateral view. Scale bars: A — x10 = 100 µm; B, C, D — x40 = 50 µm.