476 
ZOOPHYTES. 
Balbriggan Bay, brought me specimens of Fusus corneus, Turritella tere- 
bra , and Natica Alder i, stating that out of thousands of univalve shells 
examined by him there, these three species only were coated with A. 
echinatum. W. T. 
Genus Cycloum. 
C. Jiispidum , Fabr. 
Ballysodare Bay, Co. Sligo, Mrs. Hancock. Dublin Bay, Miss Ball. 
Sept., 1839. Belfast and Strangford Loughs, W. T. 
Genus Sarcochitum. 
S. polyoum , Hassall. 
North and East of Ireland, Dr. Hassall. 
July 1 5th, 1848. — I found what appears to be this species in a limpet 
between tide-marks at Cultra, and adherent to stones there also. Hassall 
makes a similar remark, Johnst. B. Zoop., 2nd ed. p. 367. 
Genus Cristatella. 
C. mucedo, Cuv. 
Fresh waters in East and, South of Ireland. 
Genus Alcyonella. 
A. stagnorum , Lam. 
Fresh waters, East of Ireland. 
Genus Plumatella. 
P. repens , Lam., Johnst. 
In rejectamenta on the shores of Lough Erne, I obtained this species 
in Sept., 1837. 
P. emarginata, Allman. 
East and South of Ireland, Prof. Allman. 
P. fruticosa, Allman. 
East and South of Ireland, Prof. Allman. 
Genus Fredericella. 
P. Sultana, Allman. 
Bandon, Dublin, Prof. Allman. 
P. dilatata, Allman. 
Fresh waters, Dublin, Prof. Allman. 
Genus Paludicella. 
P. articulata, Gervais. 
Grand Canal, Dublin, Prof. Allman. Lough Erne, 1837, W. T. 
