237 



December 10. 

 SIR Wm. R. HAMILTON, A. M., President, in the Chair. 



John Herbert Orpen Esq. was elected a member. 



Professor Mac Cullagh presented two papyri, the gift of 

 George James Knox, Esq. by whom they were lately brought 

 from Upper Egypt. 



Resolved, — That the Council be directed to take the 

 proper steps to unrol and preserve the papyri. 



Mr. Ball read a paper entitled " Description of the Cy- 

 dippe pomiformis, Patterson, (Beroe Ovatus, Flem.,) with no- 

 tice of an apparently undescribed Species of Bolina, also 

 found on the Coast of Ireland." By Robert Patterson, Esq., 

 Member of the Natural History Society of Belfast. 



The author referred to a paper of his published in the 

 Edinburgh New Philosophical Journal for January 1836, 

 giving some account of a tentaculated Beroe, taken in abund- 

 ance by him at Larne Lough, County of Antrim, in the Spring 

 of 1835. He then noticed the occurrence, on different occa- 

 sions in 1836-7, of a Beroe, exhibiting a peculiar ramiform 

 arrangement of whitish internal vessels, branching off from 

 near the lower part of the stomach to the several bands of 

 cilia ; and detailed the observations by which he was enabled 

 to identify this with the Beroe described in Mem. Wer. 

 Soc, vol. iii. p. 400, by Fleming, — the tentacula having es- 

 caped the notice of that writer, from the specimen he ex- 

 amined having been in an exhausted state when these 

 organs were retracted within the body. The presence of 

 the tentacula removes the animal from the Genus Beroe of 

 Fleming, to the Pleurobrachia of the same author (Cydippe 

 Eschs,) and as the specific name Ovata, under which it was 

 described in the Hist, of Brit. Animals, has been applied to 



