3l 
sionally appearing on the surface of the present earth, in 
the same manner as they appear to have occurred at very 
distinct epochs in the more ancient world. 
Captain Portlock then cited the various authors who 
have mentioned this species of the pedunculated division of 
Lamarck’s class, Cirrhipeda, beginning with its first disco- 
verer, Ellis, who figured and briefly described it in his 
Natural History of Zoophytes, published in 1786. It is 
there stated to have been obtained in St. George’s Channel. 
It was afterwards found on the western coast of England 
by Mr. Brier and Mr. Montague, but is still considered 
there (as stated by Turton in his Conchological Dictionary) 
very rare. The Rev. Dr. Fleming communicated to the 
Wernerian Society, between 1811 and 1814, his discovery 
of the species in considerable abundance on the coast of the 
Zetland Islands. Lamarck formed his species, vitrea, from 
a specimen obtained on the shore of Noirmantier, an island 
off the coast of Poitou, apparently the first noticed in France. 
He had, however, seen a specimen of the Lepas Fascicularis, 
sent him by Mr. Leach, and states his opinion that it is only 
a variety of vitrea. A cluster of this species of cirrhipedz 
having been sent to Captain Portlock by one of the Ordnance 
Survey Collectors, from the north coast of Antrim in the 
autumn of the last year, he was induced to make further 
inquiry as to its previously known existence in Ireland, and 
having mentioned the circumstance to Mr. R. Ball, was in- 
formed by him of four cases of its occurrence which he had 
recorded, viz. on the coast of Youghal in 1819; coast of 
Clare, 1823; coast of Clare, 1828; coast of Antrim, 1834. 
These localities, therefore, taken with his own, consti- 
tute a very wide range, and show that this species, still 
considered as very rare on the coast of England, and appa- 
rently equally so in France, has been traced round the 
western shore from the north to the south of Ireland. Spe- 
cimens of Anatifa Levis, Lamarck, (Lepas Anatifera, Linn. s)s 
