"22 LEPAS. 



mens are white, but they are more commonly pale brownish 

 red or flesh coloured, and sometimes marked with longitu- 

 dinal red lines, and concentrical white striae, which by cros- 

 sing each other give the valves a dotted appearance. Mr. 

 Bruguiere says, that the two anterior valves of the operculum 

 are obliquely striated, and the others terminated by two 

 small points. 



spinosa. 19. Shells conical with rows of incurved 

 spines on the valves, and the interstices stri- 

 ated transversely. 



Lepas spinosa. Chemnitz, viii. p. 317. t. 98. f. 840. and t. 

 99- f. 841. Gmelin, p. 8212. Wood's Conch, p. 49- 

 t. 7. f. 4 and 5. 

 Lepas, No. 10. Schroeter Einleitung, iii. p. 529- 

 Balanus spinosus. Bruguiere Enc. Method, p. 167. 

 D'Jvila, t. 6. f. N. Favanne, t. 59- f. A. 1. Enc. 

 Meth. t. 164. f. 9 and 10. 

 Inhabits the East Indian Seas, and Shores of St. Helena. 



Chemnitz. 

 Shell rarely more than an inch in diameter, and may be readily 

 known by its rows of incurved spines, of which there are 

 about four on each valve; the colour is reddish or dirty 

 white streaked longitudinally with purple. 



crispata. 20. Shell with rugged irregularly mu- 

 ricated valves, and the interstices transversely 

 striated. 



Lepas crispata. Schroeter Einleitimg, iii. p. 534. t. 9. f. 21. 



Gmelin, p. 3214. Wood's Couch, p. 5.1. t. 8. f. 1 to 4. 

 Balanus crispatus. Bruguiere Enc. Meth. p. 166. 

 Favanne, t. 59- f. A. 9. Enc. Meth. t. 164. f. 11. 



Inhabits the East Indian Seas ? 



Shell an inch or inch and a half, in diameter, and most com- 

 monly more than two thirds as high ; the valves, especially 

 towards the base, are extremely rugged, like the rough bark 

 of a tree, by which, and the polished striated interstices, this 

 species may be readily known. 1 believe that my specimens 

 came from the East Indies, but cannot be quite certain. 



riNTiNNABULUM. 21. Shell purplish, with the valves 

 irregularly and strongly ribbed longitudi- 



