872 DR. F. E. BEDDARD ON 
ventral muscles, to which I have referred inthe younger paruterine 
organ, are in places, but by no means always, visible in the adult, 
as may be seen by a comparison of the figures given. They are 
perhaps broken by the swelling of the organ to a circular form in 
section, for I have seen short fibres imbedded in the connective- 
tissue core. 
Text-figure 8. 
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co. 
More highly magnified view of a portion of the paruterine organ in sagittal 
section. 
co. Tissue of paruterine organ with calcareous bodies. ov. Ripe eggs contained 
in a space within the paruterine organ. ¢7. Transverse muscles. 
In describing the paruterine organ of Chapmania tapika, Prof. 
Fuhrmann* remarks that in that and all*forms with a paruterine 
organ the ripe eggs do not pass into the paruterine organ until 
the proglottids are detached and thus ready to leave the body. 
Mr. Ransom? particularly remarks that in his examples of the 
genus Sphyroncotenia the mature segments showed no eggs 
within the paruterine organ and that the mode of their trans- 
ference was thus unknown to him. This state of affairs is nearly 
true also of the Rhabdometra which forms the subject of the 
present communication, but not quite. In one ripe proglottid 
among many which I studied, I found embryos within the 
* Res. Swed. Zool. Exp. Egypt, pt. iti. No. 27, p. 19, 1909. 
+ Proc. U.S. Nat. Mus. vol xl. p. 637, 1911. 
