Nos. 1AXD2.] COTYLASPIS INSIGNIS. 41 



L. Nv. Lateral nerve. 



M. Mouth. 



M. F. JNIouth funnel. 



Man. Mantle of host. 



Mg. Or. Marginal organ. 



Mu. Ad. Adductor muscle of host. 



Mu. Muscle fibers. 



Mu. dl. Dilator muscle fibers. 



Mu. Ion. Longitudinal muscle. 



Mu. obi. Oblique muscle. 



Mu. Par. Parenchyma muscle. 



Mil. tr. Circular muscle. 



Mu. sp. Sphincter muscle. 



Ncl. Nucleolus. 



A^'m. Nucleus. 



Nu. M. Nuclear membrane. 



Nv. Nerve. 



Oc. Eye. 



Od. Oviduct. 



Oes. Oesophagus. 



Oe. Gl. Oesophageal glands. 



Ov. Ovarj'. 



P. Gl. Parenchyma gland cell. 



P. Vs. Posterior branch of recurrent excretory vessel. 



Par. Parenchyma. 



Pg. Pigment, in eye. 



Ph. Pharynx. 



Pr. Ph. Prepharynx. 



R. Vs. Recurrent excretory vessel. 



vS". C. Cuticular sense organ. 



Sp. Spermary. 



Sp. D. Spermatic duct. 



Tb. Tuba fallopii. 



Tr. Cm. Transverse nerve commissure. 



Ut. Uterus. 



V.S. Ventral sucker. 



V. Sm. Seminal vesicle. 



Vac. Vacuole. 



Vt. Vitellaria. 



Vs. D. Duct from seminal vesicle to cirrus. 



Vt. R. Yolk receptacle. 



