82 The Irish Naturalist. February, 



Fig. 7. A.— Spermatheca of Fridericia bullosa (Rosa). 



B.— Spermatheca of F. bulbosa (Rosa), showing the lobed 



appearance of the ampulla. 

 C— Termination of salivary gland of F. bulbosa. 

 D.— Nephridium of F. bulbosa. 

 Fig. S. Nephridium of Fridericia variata, Bret. 

 Fig. 9. A. — Brain of Fridericia Bretscheri, nom. now 



B.— vSpermatheca of F. Bretscheri. 

 Fig. x. A.— Dorsal pore of Fridericia aurita, Issel, showing the gland- 

 cells surrounding it. 

 B.— Spermatheca of F. aurita, after expulsion of the sperm. 

 Fig. xi. vSpermatheca of Fridericia comiata, Bret. 

 Fig. 12. A.— Salivary gland of Fridericia Perrieri (Vejd.). 



B. — Nephridium of /'. Perrieri. 

 Fig. 13. A. — Brain of Fridericia polychceta, Bret. 



B. — Spermatheca of F. polychceta. 

 Fig. 14. A.— Salivary gland of Fridericia mittuta, Bret. 

 B — vSpermatheca of /'. minuta. 



POI.YZOA. 



BY A. R. NICHOLS, M.A., M.R.I. A. 



The following Pohyzoa were obtained during three days' 

 shore collecting at L,ambay, Easter, 1906 : — 



Eucratea chelata (L)— A specimen on Sertularia operculata from 



Talbot's Bay. 

 Cemellarla Iorlcata (L.) — Common on shore north of harbour. 

 Scrupocellaria scruposa (L.)— A specimen. 

 S. reptans (L.) — Very common, especially on Flustra foliacea. 

 Bugula avlcularla (L.) — A specimen. 

 Cellaria fistulosa (L,.) — Common. 



Flustra foliacea (L.)— Very common on shore north of harbour. 

 F. papyracea(E. &S.) — A specimen on shore north of harbour. 

 Membranipora piIosa(L.) — Common everywhere. 

 IYI. membranacea (L.) — Very common on fronds of Lamiuaria. 

 M. Ilneata (L.) — On a stone from low- water mark near Carrickdorrish. 

 Crlbrllina punctata (Hassall). — On stones, common. 

 Mlcroporella clllata (Pallas). — A specimen. 

 IYI. lmpressa (Audouin). — On valves of Mytilus edulis from Talbot's 



Bay. 



