Plate VIII. 

 Pedicels of Spatangidae. 



A tilanient witii its rod, i'rom a pliyllodeaii pedicel in 8clii/,astcr japunicus Ai,. Ao. 



The same, in Ureeliiims uaresianus Al.. Ac. 



Tlie same, from a sub-anal pedicel in Ecbinocardiiim cordatum 1'rnn. 



The same, from a phyllodean pedicel in the same species. 



The same, from a sub-anal pedicel in Lovenia elongata Gkay. 



The same, from a phyllodean pedicel in tlie same species. 



Tips of filaments from phyllodean pedicels in the same. 



The same, in Metalia maculosa Gm. 



The basal part of the rod in a filament of a phyllodean pedicel in Abatus I'hilippii Lov. 



The circular disk of a phyllodean filament in Maretia planulnta L.vmck. The filaments are only 



partially left entire, and cut down in the greater portion of the lialf. 

 The disk of a subanal pedicel in Agassizia scrobiculata Val. 



Monstrous bifurcation of a filament, from a sub-anal pedicel in Brissopsis lyrifera Fork. 

 The disk of a phyllodean pedicel in Aceste bellidifera AVyv. Tiiom^j. 

 The same, lateral view. 



The top of a ventral pedicel, V, in Meoma grandis Gray. 

 The terminal part of a frontal pedicel, III, in the same; side view. 

 The same, from above. 



The disk of a phyllodean pedicel in Pahuotropus Josephinre Lov. 

 The terminal part of a sub-anal pedicel in the same. 



The top of a sub-anal pedicel in Rrissus compressus Lamck, seen from the under side. 

 The same, in Brissus mediator n., seen from the under siih;. 

 A ring, pseWon, from a sub-anal pedicel in Lovenia elongata Okay. 

 The same, in Abatus Philippii Lov. 



Lamina; from the phyllodean disk in Maretia phnuilata Lam( k. 

 A sub-anal pedicel of the same, mutilated. 



