Explanation of Plates. 97 



Plate 25. 



Siphodera (gen. nov.) vinaledwardsii (Linton), from Ocyurus chrysurus. 



Fig. 208. Ventral view, balsam. Posterior end of excretory vessel supplied 

 from a sketch from life. The crenulations did not appear and 

 the longitudinal ribs were faint in mounted specimen. Uterus 

 diagrammatic. Folds on right side are ventral and filled with 

 dark-brown ova, those on left side are dorsal and filled with 

 yellow ova. Tube-like gland-cells (w) in neck are more numer- 

 ous than represented in sketch, and in sections are seen to be 

 elongated cells similar to those represented in fig. 169. They 

 are interpreted to be yolk-forming cells. Length 1.82 mm. 



Fig. 209. Ventral view of genital sucker, prostatic portion of cirrus-pouch, 

 and metraterm. rm, radial-muscle fibers; diameter of genital 

 sucker 0.09 mm. 



Fig. 209a. Diagram made up from sagittal sections of specimens from this 

 host collected in Bermuda. 



Metadena crassulata gen. et sp. nov., from Neomcsnis analis. 



Fig. 210. Dorsal view, life, details added; length 1.83 mm. 



Prodistomum gracile gen. et sp. nov., from Cliipanodon pseudohispanicus . 



Fig. 211. Ventral view, balsam; length 1.33 mm. 



Fig. 212. Enlarged sketch of posterior excretory pore; diameter of muscular 

 disc 0.04 mm. 



Genolopa ampidlacea gen. et sp. nov., from Hcsmulon macrostomum. 



Fig. 213. Ventral view, life, specimen much flattened; length 1.42 mm. 



Genolopa truncata gen. et sp. nov., from Hcemulon plumieri. 



Fig. 214. Ventral view, life, details added; length 0.96 mm. 

 Fig. 215. Ova; 0.017 by o.oio mm. 



Plate 26. 

 Genolopa truncata, continued. 



Fig. 216. Ventral view of another specimen, life; length 0.78 mm. 



G aster ostomum sp., from Mycteroperca venenosa. 



Fig. 217. Ventral view, life, details added; length 1.20 mm. 

 Fig. 217a. Ova, 0.027 t)y 0.020 mm. 



Fig. 218. Posterior end, ventral view, balsam. Length of cirrus -bulb 0.7 mm. 

 n, opening into cirrus seen through body-wall. 



Gasterostomum gracilescens{?), from Lycodontis moringa. 



Fig. 219. Anterior sucker, life; diameter 0.35 mm. 



Fig. 220. Ventral view, balsam. 



Fig. 221. Ova, life; 0.027 by 0.017 irim. 



Gasterostomum sp., from Mycteroperca bonaci. 



Fig. 222. Ventral view, life; length 1.90 mm. 



Fig. 222a. Ova, balsam; 0.027 by 0.024 mm., 0.034 by 0.020 mm. 



Gasterostomum sp., probably more than one species, from Sphyrcena barracuda. 



Fig. 223. Ventral view, life, a few details added; length 0.91 mm. a, ova, 



maximum length 0.024 mm. 

 Fig. 224. Ventral view; length 0.94 mm. 

 Fig. 224a. Ova, 0.03 by o.oi mm. 



Fig. 225. Ventral view, life. No others seen like this. The specimen was 

 not fovmd among the mounted material. Length 1.48 mm. 



