126 



TAENIA EXPANSA EMBEYOS. 



Plate XV. 



Fig. 1. Embryos magnilietl and flattened under cover-glass. 



Fig. 2. A single embryo and its envelopes somewhat flattened. 



Fig. 3. The same greatly flattened : a, the thick, oily mass between the inner and 



outer covering, 

 Fig. 4. The same with outer envelope ruptured : a, the outer envelope ; b, the in- 

 ner ; c, oil globules; <?, the embryo and its pyriform apparatus. 

 Fig. 5. Embryo, with three envelopes. 

 Fig. 6. Embryo escaped from ru]otnred inner coat : «, the fringed cap-like covering; 



6, the bladder-like sac protuding from it ; c, the sis-hooked embryo. 

 Fig. 7. A younger embryo, inwhich the bladder portion has not burst from the cap. 



a, the cap ; 6, the embryo. 

 Fig. 8. Three young tmnia which show no trace of segmentation. 

 Fig. 9. A young fwnia which is boginuiug to segment. 

 Fig. 10. A head of young specimen showing a peculiar loop in it. 



