440 Mr. W. Thompson's Additions to the Fauna of Ireland. 



tactes of the ' Zoologia Danica ' with doubt, from an examination 

 of an injured specimen. I can now announce the species with 

 certainty. Dr. Drummond having procured an example of it when 

 dredging at Bangor in June 1839. 



ACALEPHA. 



" Cydippe pileus, Linn, (sp.) Irish Sea." Communicated by Pro- 

 fessor E. Forbes. 



" Melicertum campanulatum, Ehrenb. Ballycastle ; Portrush, near 

 Giant's Causeway." E. F. 



" Aurelia aurita, Linn, (sp.) North, west, and east coasts." E. F. 

 A species so called has been before noticed as Irish, but as more 

 than one has passed under the name, the true species according 

 to Prof. Forbes is here repeated. 



" Aurelia bilobata, Forbes MSS. Portrush." E. F. 



" Cyanea Lamarckii, Peron. County Galway coast, July 1840." 

 R. Ball, W. Thompson, E. F. 



ZOOPHYTA. 



Thuiaria Thuia, Linn, (sp.) Miss Ball's collection contains a speci- 

 men presented by Mrs. Acheson Lyle as from Portrush, near the 

 Giant's Causeway : on further inquiry being kindly made by this 

 lady, it was ascertained with certainty that a few specimens had 

 been picked up on the coast of Londonderry, between Moviile and 

 Greencastle, by Mr. Sawers. 



Zoanthus Couchii, Jobnst. MSS. A specimen of this is in Mr. R. 

 Ball's collection, adherent to a stone dredged many years ago off 

 the southern coast. 



Lepralia verrucosa, Esper (sp.) ; Lep. Johnstoni, Bean MSS. Dub- 

 lin coast. Miss Ball, 1837*. 



AMORPHOZOA. 



Graniia lacunosa, Bean, Johnst. British Sponges, p. 176. pi. 20. 

 f. 2, 3. Strangford lough, near Portaferry, July 1838, W. T. 

 Dredged from a depth of eight to ten fathoms at Donaghadee, May 

 1843, Dr. Drummond. 



* PedicelUna ech'mata, Savs., is noticed by Mr. Hassall in the 'Annals,' 

 vol. vii. p. 365, as found in Dublin baj'. I had some years before that time 

 seen specimens from our north and south coasts ; from Courtmasherry 

 harbour (co. Cork), where they were found by Mr. Geo. J. Allman •' at 

 low spring tides attached to Sertidar'ice, &c. in a little rocky fissure scarcely 

 uncovered even at the lowest tides ;" and from about tlie entrance of Belfast 

 bay, where they were dredged from a moderate depth on different occasions 

 by Mr. Hyndman and Mr. Patterson. In May last, Dr. Drummond 

 dredged likewise from a moderate depth, a group of the Pef/ZceZ/inrt ad- 

 herent to a stone at Donaghadee, county Down. 



