238 Henry Leste Oszory, 
Explanation of Figures. 
All drawings made with camera lucida unless otherwise stated. 
Abbreviations, 
The same reference letters are used in all the figures. 
A. Vs Anterior branch of recurrent J. Br Inner gill of host 
vessel Int Intestine of Cotylaspis 
Bdy Body Int. Ep Intestinal epithelium 
Cap Capillary Lb. Pl Labial palpus 
Cl. Ch Cloacal chamber of host Lat. Com Lateral compartment of 
Col. Vs Collecting vessel of excretory ventral sucker 
system L. Nv Lateral nerve 
Con Concretion M Mouth 
Cot Cotylaspis in situ in host M. F Mouth funnel 
Cr Cirrus Man Mantle of host 
Cr. S Cirrus sack Mg. Or Marginal organ 
Cut Cuticle Mu. Ad Adductor muscle of host 
Cy Cytoplasm of cell Mu Muscle fibers 
D. Ej Ejaculatory duct Mu. dl Dilator muscle fibers 
Dpm Diaphragm Mu. lon Longitudinal muscle 
Eg Egg in uterus Mu. obl Oblique muscle 
Ep Epethelium Mu. Par Parenchyma muscle 
Ex. Bl Exeretory bladder Mu. tr Circular muscle 
Ex. Po Excretory pore Mu. sp Sphincter muscle 
Ex. V Excretory vessel Nel Nucleolus 
F Foot of host Nu Nucleus 
Fl. Cl Flame cell Nu. M Nuclear membrane 
Gon Anlage of reproductive system Nv Nerve 
G. Po Genital pore Oc Eye 
