282 Z. ASCIDIOIDA. Membranipora. 



2. M. SPONGIOSA, aperture of the cells with several long setce. 



Robert Brown.* 



Flustra spongiosa, Templeton, in Mag. Nat. Hist. ix. 469. 



Hab, " Found by Robert Browiij Esq. on the coast of Ballycastle," 

 Templeton. 



" Allied to the preceeding- : the mouths of the cells with several 

 long setae. In pilosathe mouths of the cells are surrounded by several 

 very short teeth, with only one hair-like appendage. In this species 

 the teeth appear lengthened into long setaceous bristles." Temple- 

 ton. 



* The author of the " Prodromus Florae Novae HoUaiidise." 



