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TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



quite a different appearance from' the figures given by van 

 Beneden. 



Fig. 10, page <)4, represents a fully expanded 

 specimen, such, as may be obtained by killing the worm in 

 fresh water and preserving it in weak formalin. In this 

 specimen the bothridia were carried on rather long, 

 versatile pedicels arranged in the form of a cross, veiw 

 approximately in the transverse plane of the scolex. The 

 bothridia are situated nearly at right-angles to the axes of 



Fig. 10. Echeneiboihrium dubium, van Beneden ; A, the apex of 

 the myzorhynchns ; B, the scolex. Mag. about 00 dia. 



the pedicels. Each is leaf-shaped, very nearly oval in 

 surface view, slightly pointed at the anterior extremity. 

 They are bent so that their concave surfaces are directed 

 outwards from the axial line of the strobila. Each 

 bothrium has 10 loculi, these being formed very distinctly 

 by five transverse costae on either side, and two median 

 longitudinal costae. Two of the loculi are terminal. This 

 arrangemenl is represented in van Beneden's fig. 10, but 



