200 ANCEID#. 
vious page. That all of them were in an immature 
condition is evident from the careful analysis of the 
mouth, published in the memoir in which their descrip- 
tion appeared, and which, together with the relative 
structures of the cephalon and pereion, and other cha- 
racters, led Professor Westwood to consider that this 
genus, and several others equally abnormal, ought 
to form a distinct division, intermediate between the 
Amphipoda and Isopoda (such, indeed, as Dana has 
formed under the name of Anisopoda), displacing the 
Lzmodipoda of Latreille (Caprellidze), from the osculant 
situation which they had held in the classification pro- 
posed by that author. 

