TUBICINELLA. 



j^am. — Ann. du Mus. vol. i. 



TESTA cylindraceo-tubulosa, valvis sex longitu- 

 dinaliter ferruminatis composita, recta, extus 

 longitudinaliter striata, costis transversis annu- 

 latim cincta, utrinque truncata; apice pervio 

 membrana postiefe clauso. Operculum quadri- 

 valve, valvulis subquadratis, apic^ attenuatis, 

 rotundatis. 



A Genus of Cirripides, established by Lamarck, and 

 adopted by Leach, which appears to us to be well dis- 

 tinguished by its peculiar habits from the greater part of 

 the sessile Cirripedes, but by the characters of the sheU 

 only, from Coronula of Lamarck, as well as from Leach s 

 Cheionohia, Only one species is known at present, which, 

 Lamarck informs us, is found upon the South Sea Whales, 

 into whose skin and fat it penetrates, so that the aperture 

 of its shelly tube is very little raised above the skm of the 



Whale. , ■ . . J 



The shell consists of six ligulate valves, joined 

 together by their sides, so as to form a nearly straight 

 cylindricartube, which is smooth within, but longi- 

 tudinally striated on the outside, and surrounded by an 

 irregular number of transverse ribs or wings; altoge- 

 ther bearing a very near resemblance to a portion ot a 

 wind-pipe, for which reason it has been called Lepas 

 trcwhecBfonnis', Leach has, however, designated it by the 

 name of Tabicinella Lamarckii; and Lamarck has called \% 

 T, halcEnarum, This cylindrical tube is truncated at both 

 ends, scarcely smaller at its lower than at its upper 

 extremity; its apertures are orbicular; that at the lower 



