20 LEPAS. 



angular ribs; aperture small and somewhat 

 pentagonal. 



Lepas patellaris. Gmelin, p. 3213. Wood's Conch, p. 



54. 

 Lepas, No. 9. Schroeter Einl. iii. p. 529- 

 Balanus patelliformis. Bruguiere Enc. Method, p. 169- 

 Spengler Schr. Berlin Naturf. i. t. 5. f. 4. Chemyiitz, 

 viii. t. 98. f. 839. Enc. Method, t. 165. f. 3. 



Received from Coromandel, firmly attached to the branch of 

 a tree. Spengler. 



Shell ten or eleven lines in diameter, and only about three lines 

 high, and bears a strong resemblance to Patella saccharina. 

 It is composed of six valves of a brown colour with whitish 

 streaks, and the aperture is not more than one tenth of an 

 inch in diameter. From the circumstance of Spengler's 

 specimen being attached to the branch of a tree, Bruguiere 

 has conjectured that this may probably be a fresh water 

 species. 



violacea. 14. Shell conical, thick, of a violet 

 colour; valves slightly grooved longitudi- 

 nally, and the interstices smooth. 



Lepas violacea. Gmelin, p. 3213. Wood's Conch, p. 53. 

 Lepas, No. 11. Schroeter Einl. iii. p. 530. 

 Balanus radiatus, Bruguiere in Enc. Method, p. 168. 

 Chemnitz, viii. t. 99- f. 842. Enc. Method, t. 164. f. 15. 



Inhabits the East Indian Ocean. Chemnitz. 



Shell near an inch in diameter, and about two-thirds as high, 

 of a clear violet colour, with darker longitudinal lines ; the 

 aperture is about a quarter of an inch broad, and is a little 

 beaked on the posterior side ; the interstices are said to be 

 smooth and without striae, but I have a specimen which 

 answers in other respects to Chemnitz's description, in which 

 they are striated transversely. 



porcata. 15. Shell conical, of a violet colour; 

 valves strongly ribbed longitudinally, and the 

 interstices faintly striated transversely. 



Lepas porcata. Wood's Conch, p. 52. t. 8. f. 5. 



Inhabits 



Shell about an inch in diameter, and two thirds as high, of a 



violet colour, which is rather fainter on the ribs ; the ribs 



