L 



Fia. 32' 



Figs. 827-330. —Diagrams to illustrate 

 tlie course of the axial canals and the 

 nerre strands within them in the dorsal 

 cup and the first hraohial joints of En- 

 crinus (Fig. 327, after Beyrioh), Rhizoorinus 

 lofotensis (Fig. 32S, after P.' H. Carpenter), 

 Antedon rosaoeus (Fig. 329) and Bathy- 

 crinus aldrichianus (Fig. 330, after P. H. 

 Carpenter). In Fig. 327 only the distal ends 

 of the Interradial canals are represented. 

 The parts which are transversely streaked 

 rnn superficially on the inner side of the 

 basal plates. 



Fig. 330. 



