312 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



up of the anterior tips. The posterior margin shows the 

 characteristic notching of the edge and back, and the 

 division of the face into the three deep cup-like loculi by 

 two radial ridges. 



P. J. van Beneden's figs. 3 and 9, pi. III., " Yers 

 Cestoides," represent much the same condition as is 

 represented in Yar. A. Fig. 2, pi. III. of the same book 

 shows the condition of Yar. B. Yariety C has been 



Fig. 20. Echeneibothrium variabile, van Ben. Var. C. Mag. 40 dia. 



figured by Olsson,* whose fig. 15 is very similar to fig. 20. 

 The variety is there described as " Forma singular is 

 floribus Rosarum similis." 



Such " varieties " as are spoken of here are to be 

 regarded as conditions produced by the manner in which 

 the animal has died. The effect of the killing in fresh 



* Entozoa iakttagna hos skandinaviska hafsfiska. Acta Univ. 

 Lundensis. Lunds. Univ. Aarskrift for 1866. Lund. 1866-7. 



