EXPLANATION OF PLATES. 



PLATE I. PHYLLACANTHUS AUSTKALIS. Htun^n/. Side view. 



If/. ., .. ,. Abactinal end. 



16. ,, ., ,, Actinal end. 



(From the type. ) 



,. II. SALMACIS WOODSII, Ram^ii/. 1. Actinal end. 2. Side. 

 3. Abactinal end. 



(From the type. ) 



.. III. GONIOCIDARIS TUBARIA, Lanik. 



