PLATE 10. 



Figs. 1-7, !I-U). Sections of Limifo.ssor talpoideus; Fig. S. Chaotodcrma crudita. 



Side viow, living s|K'cinirn. X 5. 



Anterior end, living specimen, .showing extremes of motion of frontal sense organ. 



Lateral view of organs of jjosterior end of body. 



Same of organs in anterior part of body. 



Diagram of radiila and muscles that open and close the teeth. 



Section through dorsal sense organ. X 13o. 



Lateral view of buccal mass, showing more important nuiscles that operate the radnia anil 



IJrain and labio-buccal nervous system. 



Spicules from miildle of body, front and side views. X 11(1. 



Dorsal view ol radula and its supiiorts: luirtion of dorsal pharyngeal wall removed. 



