54 ON A GRYOCOTYLE FEOM CHIM^ERA. 



7. — Spencer, W. BALD^YIX— " The Anatomy of Amphiptyches urna." 



Trans. E.S. Vict., 1889. 

 8. — Wagener, E, G. — -" Ueber einen neuen in der Chimcera monstrosa 



gefundenen Eingeweidewurm Amphiptyches urna, Grube und 



Wagener." Miiller's Archiv f. Anat. Physiol. Jahrg. 1852. 

 9.— Will, H. — "Anatomie von Caryophyllseus mutabilis Rud." Zeitschr. 



wiss. Zool., Ivi. Bd. (1893). 



EXPLANATION OF PLATE VII. 



Fig. 1. — GyrocotyU nigrosetosa, natural size. 



Fig. 2. — Gyrocotyle nigrosetosa, anterior end, ventral aspect, magnified; 

 te., lobes of testis; -s., sucker; «.., uterus; vit., lobes of vitelline glands; J, 

 opening of ejaculatory duct; $ , opening of vagina. 



Fig. 3. — Gyrocotyle rugosa, dorsal surface of the anterior region (extremity 

 with sucker cut off); c, cirrus; va., opening of vagina. 



jpig. 4, — The same specimen, ventral surface. 



Fig. 5. — Outline of a transverse section through the specimen of Gyrocotyle 

 rugosa represented in figs. 3 and 4, in the region of the cirrus; v. , ventral 

 surface; d., dorsal surface; e.d., ejaculatory duct in terminal part of cirrus; 

 c, cirrus. 



Fig, 6, — Spinules of Gyrocotyle nigrosetosa. 



Fig. 7. — Egg of Gyrocotyle nigrosetosa. 



