16 LEPAS. 



Shell near half an inch in diameter, and about a quarter of an 

 inch high ; it has been confounded by Chemnitz, Schroeter, 

 and Gmelin, with L. balanoides, from which it may be dis- 

 tinguished by its more conical form and contracted aperture. 

 M. Bruguiere says, the four valves of the operculum are 

 obliquely striated and blunt at the summits. 



striatus. 4. Shell conical truncated, with longi- 

 tudinally striated valves rounded at their 

 summits, and the interstices straight and 

 smooth. 



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

 Lepas balanoides Var. Chemnitz, viii. p. 305. t. 97« f. 



823. 

 Lister Anim. Aug. t. 5. f. 41. Conch, t. 444. f. 287. 

 Kfein. ost. t. 12. f. 94 and 95. Enc. Method, t. 164. 

 f. 3. 

 Inhabits the coasts of England and Holland on muscle and 



oyster shells, and on the keels of vessels. Bruguiere. 

 Shell sometimes three quarters of an inch in diameter, and half 

 as high, of an oval form, and whitish or greyish colour. M. 

 Bruguiere has quoted Lister's figures, which have been gener- 

 ally referred to for C. balanoides, and describes it as a native 

 of our British shores ; he says, that the two anterior valves of 

 the operculum are oblique and obliquely striated. 



balanoides. 5. Shell sub-cylindrical truncated, 

 with the valves and interstices smooth. 



Lepas balanoides. Linnaus Syst. Nat. p. 1 108. Pennant's 

 Zool. iv. t. 37. f. 5. Born. Mus. p. 9. Chemnitz, viii. 

 p. 305. t. 79- f. 821. Schroeter Einl. iii. p. 512. Gme- 

 lin, p. 3207. Bruguiere Enc. Method, p. 164. Dono- 

 van, i. t. 36. f. 2. Maton and Racket, in Lin. Trans. 

 viii. p. 23. Wood's Conch, p. 43. t. 7. f. 3.? 

 Balanus vulgaris. Da Costa Brit. Conch, p. 248. t. 17. 



f. 7. Dorset Cat. p. 25. t. 2. f. 7. 

 Balanus balanoides. Montagu Test. p. 7. 

 Inhabits the shores of Great Britain and other European 

 shores on rocks, stones, shells, and other substances in great 

 abundance. 

 Shell rarely more than a quarter of an inch in diameter, and 

 differs from the foregoing species in being more cylindrical, 

 smaller, smoother, and more brittle. The operculum has 

 four valves, of which Montagu says, the two upper are 

 slightly striated transversely, and the others smooth. 



