Note on M. Dehjs Paper. By C. T. Hudson. 387 



by side, mine (Fig. 1) of Pedalion, and M. Schmarda's (Fig. 2) of 

 Hexarthra, will show that M. Deby's statement cannot be main- 

 tained, especially as M. Schmarda's written description exactly 

 tallies with his figure in the points to which I wish to call attention. 



These are, that both M. Schmarda's description and his figure 

 represent his rotifer as having two hmbs of equal size much bigger 

 than the rest, and that all six spring from the same side of the 

 rotifer. 



Now, Pedalion has one of its six limbs much bigger than all 

 the rest, and it is situated on the opposite side to the other five. 



M. Schmarda's drawings are probably but rough ones ; but 

 making every allowance for this, it is surely impossible that he 

 could have been guilty of two such blunders as M. Deby gives him 

 credit for. 



No doubt the two creatures belong to the same family ; but they 

 are generically distinct. 



I strongly suspect M. Schmarda's " great vascular ring " to be 

 nothing but the muscles at the neck, and the " testicle " he speaks 

 of, to be probably the contractile vesicle ; but it is of httle use to 

 criticize hypothetical mistakes, so I will not pursue the matter 

 further. 



2 c 2 



