ELMINIUS 



Leach, in Zool. Journ. 



TESTA subconica, valvis quatuor, solidis, inae- 

 qiialibus, lateraliter ferruminatis, composita; 

 apertura apicali magna; basi affixa: fvalvd tes- 

 taced basalt nulla.) Operculum bipartitum, 

 valvis quatuor compositum, pari antico subho- 

 rizontali. 



A Genus of sessile Cirripedes proposed by Dr. Leach in 

 the Zoological Journal. Like Conia the parietal portion 

 consists of only four pieces, the structure of these valves 

 is, however, very different, as in Conia they are thick and 

 porous, but in Elminius they are thin and solid; it is 

 moreover distinguishable in a remarkable manner from 

 Conia by its having no testaceous basal valve. 



Shell somewhat conical, composed of four thin, solid, 

 unequal, laterally soldered valves, affixed by the base, 

 without the intervention of a testaceous basal valve, 

 and having a large opening at the apex. It appears, like 

 most of the Cirripedes, to be gregareous, and when affixed 

 in numbers, side by side, they lose their conical form and 

 become more or less regularly cylindrical. The Genus is 

 remarkable for the wideness of the aperture, and for the 

 size of the operculum, which is bipartite and consists of 

 four pieces, the anterior pair of which are placed in a very 

 horizontal position. 



We have received a few specimens of this hitherto 

 unknown Genus, from the coast of South America ; some 

 are attached to a Mytilus and others to a worn pebble : 

 Capt. King has named the species Elminius Leachii, see 

 Zool. .Journ. vol. V. p. 334. 



