486 WILLIAM NICOLL. 
Fie. 2.—Steph. laureata. Longitudinal section of anterior end, 
nearly median. xX 85. V.P. Ventral papilla. .D.P. Dorsal papilla. 
a, Myoblast. 
Fie, 3.—Steph. laureata. Cirrus-pouch and vagina. Somewhat 
diagrammatic. x 270. 6. Male genital aperture. 92. Female 
aperture. 
Fig, 4.—Steph. laureata. Transverse section, yolk-follicles. x 
270. P.C. Parietal cell. C.C. Central cell. D.G. Yolk-duct. Y.C. 
Yolk-cell. 
Fie. 5.—Steph.laureata. Immaturespecimen. x 60. HS, Eye 
spot. 
Fic. 6.—Brachycladium oblongum (Brn.). Shell-gland complex. 
Transverse section. K.G. Oviduct. D.G. Yolk-duct. Cu. Cuticle. 
D.R. Yolk-reservoir. V.D. Vas deferens. #.S. Ut. Receptaculum 
seminis uterinum. Oo. Ootype. 
Fie. 7.—Brachycladium oblongum. Longitudinal median 
section through genital aperture. x 60. 
Fic. 8—Brachycladium oblongum, Longitudinal median section 
through anterior end, showing pre-pharyngeal pouch. Reconstructed. 
x 60. Div. Pre-pharyngeal pouch. 
Fie. 9—Lebouria idonea n. sp. Ventral view. x 50. D.R. 
Yolk reservoir. 
Fra. 10.—Lebouriaidonea. Coronal section, anterior end. x 100. 
I.D. Intestinal dilatation. 
Fira. 11.—Lebouriaidonea. Cirrus-pouch. x 330, B.Z. “ Begleit- 
zellen.” 
Fie. 12.—Lebouria idonea. Shell-gland complex. Dorsal view. 
x 8. K.G. Oviduct. D.G. Yolk-duct. D.R. Yolk-reservoir. 
Fie. 13.—Fellodistomum fellis (Olsson). Longitudinal section 
through dorsal surface and intestinal diverticulum just in front of 
ventral sucker. x 80. Cw. Cuticle with rod-like bodies. Hp. Intestinal 
epithelial cells containing masses of bile (Z.), 
Fie. 14.—Fellodistomum fellis. Transverse section through 
centre of yentralsucker. x 75. C.M. Circular muscle-fibres of sucker. 
D.Z. Subcutaneous gland cells. D.Z.S. Gland cells of the sucker. GZ. 
“Grosse zellen’’ (myoblasts ?). J.Z. Cells of the inner zone. M.Z. 
Cells of the median zone. P.Z. Cells of the outer (peripheral) zone. 
Fig. 15,—Fellodistomum agnotumn. sp. Ventral view. X 30. 
Fic. 16.—Steringophorus cluthensis n. sp. Ventral view. x 55. 
Fie. 17.—Plagiorchis notabilis n.sp. Ventral view. x 55. C. 
Cirrus. 
