LEPAS. 15 



ton and Racket, in Lin. Trans, viii. p. IS. Wood's 

 Conch, p. 47- t. 7. f. 3. 

 Baianus porcatus. Da Costa Brit. Conch, p. 249. 

 Balanus communis. Dorset. Cat. p. 25. t. 2. f. 12. Mon- 

 tagu Test. p. 6. 

 Balanus sulcatus-. Bruguiere Enc. Method, p. 1(53. 

 Lister Conch. t.*43. f. 286. £«c. Method, t. 164. f. 1, 



Common on the coasts of Europe and North America on 

 rocks, shells, and stones. 



Shell from half an inch to an inch broad at the base, and the 

 height is about three-fourths of the diameter ; the form is 

 that of a truncated cone, and the valves are, more or less, 

 strongly and irregularly ribbed longitudinally; the operculum 

 is transversely striated, aud the two longest valves have a 

 longitudinal furrow ; the colour varies from dirty white to 

 greyish brown. 



punctatus. 2. Shell conical truncated, rugged, 

 with the valves and the operculum punctured. 



Lepas punctatus. Maton and Racket, in Lin. Trans, viii. 



p. 24. Wood's Conch, p. 46. 

 Lepas cornubiensis. Pennant's Zool. iv. p. 73. t. 37. f. 6. 

 Lepas balanus Var. Schroeter Einl. iii. p. 525. Ginelin, 



p. 3207. 

 Balanus punctatus. Dorset Cat. p. 25. t. 1. f. 10. Monta- 

 gu Test. p. 8. t. 1. f. 5. 

 Chemnitz, viii. t. 97- f. 826. 



Inhabits the coasts of Britain on shells and stones. Pulteney, 

 fyc. North Sea. Chemnitz. 



Shell usually about a quarter of an inch high, and nearly equally 

 broad, of a dull brown colour and rugose appearance. I\ I r. 

 Montagu says, it may be distinguished by the edges of the 

 superior and inferior of the four valves of the operculum 

 being closely united at the top, indented or notched, aud 

 locked into each other; these minute valves, as also fre- 

 quently the exterior valves, are punctured like a thimble. 



iuevis. 3. Shell conical, contracted at the aper- 

 ture ; valves and interstices smooth. 



Balanus laevis. Bruguiere Enc. Method, p. 164. 

 Chemnitz, viii. t. 79. f. 715 and t. 97. f. 822. Enc. Method. 

 t. 164. f. 2. 

 Inhabits the East Indian Seas. Chemnitz. Straits of Ma- 

 gellan and coasts of Cape Horn. Bruguiere. 



