Bull. U. S. F. C. 1899. (To face page 492.) 
Plate XXXIII. 
3G0. Distomum sp. from Limanda ferruginca , continued. Restored 
from sections, partly diagrammatic, a, Ventral sucker; g, 
genital aperture; i, intestine; o, ovary; oe, oesophagus; ph, 
pharynx; t, testes; vg, vitelline glands, x 46. 
361. Testes, ovary, ova, and portion of vitellaria. Letters as in fig. 
360. X SO. 
362. Ova. X 300. 
363. Distomum polyorchis Stossich. from Ct/noscion regalis; ventral 
view; life, x 30. d, Diverticula of intestine; t, testes; yd, 
vitelline duct; yr, vitelline reservoir, lying on ventral side of 
ovary. 
364. Spines'on neck, x 400. 
365. Detailsof post-acetabular region, ventral view. X 100. e, Cirrus; 
.u, uterus. Other letters as in figs. 360, 363. 
