OPHIURAD.E. 63 



simple thread-like jointed appendages around the 

 dorsal disk. 



C. rosacea. Fig. 93 ; i n. s. 



^-^Z 



/ 



Order II. ASTEROIDEA. 



With long snake-like rays, appended to round 

 depressed urchin-like disks ; locomotion per- 

 formed by spines, and not by suckers .... Ophinrada. 



With angles or rays which are not appendages, 

 but parts of the body ; locomotion by suckers 

 protruded from beneath the rays Asteriadee. 



Family I. Ophiuead^:. 



With the rays simple Ophiurana. 



With the rays much ramified Euryalina. 



Sub-Family I. Ophiurana. 



Ophiura (Lamk.). Rays simple, scaly, pro- 

 longed into the disk above, and separated at their 



