PATELLA. 



Plate VIII. 



Species 14. (Fig. a, h, Mus. Cuming.) 



Patella costoso-plicata. Pat. testa ovatd, coiwexim- 

 cnld, crassiiiscidd, radiatim fortiier costatd, costis ir- 

 regularibus, rude decUvi-tubercnlatk, interstilik rude 

 clathratis ; sordide eroso-fi(scd, iiitus alia, margine 

 Jimbriaid. 



The rib-pleated Limpet. Shell ovate, slightly convex, 

 rather thick, radiately strongly ribbed, ribs irregular, 

 rudely slantingly tuberculated, interstices rudely lat- 

 ticed : dingy eroded brown, interior white, fimbriated 

 at the margin. 



Martini, Conch. Cab. vol. i. p. 91. pi. 8. f. 66. 

 Patella f&'ruginea, Gmelin. 



Hab. ? 



A solid white shell, rayed with strong slantingly tuber- 

 cled ribs rudely latticed in the interstices, the whole sur- 

 face having a rusty eroded aspect. 



Species 15. (Fig. a, b, Mus. Cuming.) 



Patella cuprea. Pat. testa ovatd, sendglobosd, soli- 

 dhisculd, radiatim cretmlato-liratd, liris alternis mi- 

 norib}is ; ciipreo-fnscu., intus argented, niicleo opaco- 

 albo. 



The copper Limpet. Shell ovate, semiglobose, rather 

 solid, radiately crenulately ridged, alternate ridges 

 smaller; copper -brown, interior silvery, nucleus 

 opake- white. 



Patella liigiibris, Dunker (not of Martyu or Martini). 



ILib. Swan River. 



A firm shell, of a semiglobose saucer-like form, rayed 

 with crenuled ridges, alternately smaller, the exterior being 

 of a semitransparent copper-brown white, the interior is 

 bright silvery. 



October, 1854. 



