LEPAS. 53 



cimen figured, very irregular. Depressed compart- 

 ments narrow and smooth. Base testaceous. 



It does not appear that this shell has been hitherto 

 described, though it is not a very rare species. The 

 Lepas from the East Inches Avith violet rays, which 

 Chemnitz has represented, vol. 8. pi. 99. fig. 842. bears 

 a strong resemblance to the L. porcata, but is not the 

 same shell. 



Specimens of a regular bell shape and more uni- 

 formly ridged, occur in the Museum of the Linnaean 

 Society. 



VIOLET ACORN. 



24. Lepas violacea. L. testa crassa, glabra, sexvalvi alba, radiis violaceis. 

 Linn. Gmel. p. 3213. 



Shell thick, smooth, of six valves, white with violet rays. 



Balanus radiatus. B. testa conica longitudinaliter sulcata, lineis vio- 

 laceis picta, radiis Itevibus. Brug. Encyclop. Method. Hist. Nat. 

 t. 6. p. 168. 



Lepas Indice Orientalis ex violacea radiata. Chem. Conch, torn. 8. pi. 99. 

 f. 842. Encyclop. Method, pi. 164. fig. 15. 



This is described by Chemnitz as a conical shell with 

 a large oval base. It has six unequal valves grooved 

 longitudinally and rayed with violet in the same direc- 

 tion. The intermediate compartments are smooth and 

 without striae : the opening is oval, a little compressed 

 behind: the operculum is quadrivalve and striated 

 transversely : the two posterior valves of the operculum 

 are pointed. The shell is of a clear violet colour with 

 lines of a deeper tint. It inhabits the Indian ocean. 



Bruguiere considers this as a very rare species, not to 

 be found in anv collection in Paris. 



