54 



THE APODID^E 



PART I 



of the anterior segments in the bent position. The 

 dorsal bands in the five anterior segments would be 

 much stretched in order to bend round over the 

 intestine to be attached near the prostomium. The 

 ventral bands in the same region would, on the con- 

 trary, be much shortened, the bend behind the lip 

 being very sharp. The muscle bands here would 



cm 



FIG. ii. Transverse section through the trunk of a carnivorous Annelid, diagram- 

 matic (from Lang's Tejcl-book of Comparative Anatomy}, g, gill ; d, dorsal ; 

 r', ventral parapodium ; c\, cirrus of the dorsal parapodium; c, ditto of the 

 ventral parapodium ; an, circular musculature ; Im, longitudinal musculature ; 

 tm, transverse musculature ; ac, aciculum ; n, nephridiurn ; e, developing eggs, 

 some of which are floating free in the body cavity. 



be rendered almost useless, in fact, would be a 

 hindrance, and would therefore degenerate, not, 

 however, without leaving some traces. While the 

 muscular elements disappeared, the sinewy elements 

 would persist as points of attachment for those 



