D345 
SHELLS. 
Description of the Cirruipepa, Concuirrra, and Mo.uvusca, 
in a Collection formed by the Officers of H.M.S. Adventure 
and Beagle, employed between the years 1826 and 1830 in 
surveying the Southern Coasts of South America, including the 
Strait of Magalhaens and the coast of Tierra del Fuego. By 
Captain Phillip P. King, R.N., F.R.S., &c., assisted by W. J- 
Broderip, Esq., F.R.S., &e. (From the Zoological Journal.) 
The testacea, of which the following paper is a descriptive list, 
were principally collected upon the coast of South America ; and, 
upon my arrival in England, were submitted to the examination 
of Mr. George Sowerby ; who very obligingly selected the unde- 
scribed species from the collection which had been formed under 
my superintendence by the Officers of H.M.S. Adventure and 
Beagle, employed under my command in surveying the southern 
coast of South America. 
To these gentlemen I am greatly indebted for the unwearied 
assiduity which they at all times displayed, and for the extent 
of the collection in this, as well as in other departments of Natural 
History. 
In the description of the species I have had the benefit of the 
advice and assistance of my friend Mr. Broderip; and to his 
knowledge of the subject, and the attention which he has devoted 
to my collection, I owe in a great measure the paper which I have 
now the satisfaction of presenting to the public through the 
medium of the Zoological Journal. 
Upon examining my specimens, Mr. George Sowerby found that 
he possessed several species not in my collection. These had been 
obtained during the voyage, and had been purchased from some 
of the crew by Mr. Sowerby, who handsomely put his acquisitions 
into my hands for description. 
1. Batanus Psirracus. 
Syn. Lepas Psittacus. Molina, 1., 223. 
B. testé albido-rosaced, subconicd, elongata, rudi, longitudinaliter 
creberrimé striata ; radiis transversim striatis ; operculo transversim 
VOL. I. QN 
