84 



CONCHOLOGY. 



C. glauco-sinctus. 

 C. (lisjunctus. 

 C. elegans. 

 C. lineatus. 

 C. sulcatus. 

 C. bicolor. 

 C. cerasimus. 

 C. Magellanicus. 

 C. marmoratus. 

 C. nebulosus. 

 C. olivaceous. 

 C. latus. 

 C. punctatus. 

 C. viridus. 

 C. cincrus. 

 C. tunicatus. 



C. 



C. larvaformis. 

 C. undulatus. 

 C. luteolus. 

 C. fuscus. 

 C. minimus. 

 C. ciraex. 

 C. ascellus. 

 C. Icelandicus. 

 C. fasciatus. 

 C. setosus. 

 C. variegatus. 

 C asselloides. 

 C. indus. 

 C albas. 

 C. castaneus. 

 *C. Emersonii. 

 fulminatus. 



4. Genus Patella. 

 Animal. Body completely covered by the shell ; head with 

 two acute tentaculjB; and the eyes situated at their exterior base ; 

 branchiae placed under the mantle and around the body. - 



Shell. This numerous and beautiful genus of Linnseus has 

 been subdivided into the several distinct genera of Fissurella, 

 Emarginula, Navicella, Umbrella, Pileopsis, Calyptrea, Crepidula, 

 Parmophora, and Ancylus ; each of which possesses sufliciently 

 well-defined characters to authorize a separation, by which they 

 may be more easily distinguished from the still widely extended 

 family of Patella. Oval, conic, or a little depressed, outside green 

 or brown, sometimes radiated with various colors ; having di- 

 vergent strire and concentric wrinkles, inside glossy, iridescent, 

 with yellow or fawn colored, purple, blue, or brown radiations. 

 Inhabits the coast of Europe. Forty-five species. 



Patella safiana. P. Australis. 



P. testitudinaria. P. apicina. 



P. cochlear. P. granatina. 



P. compressa. P. oculus. 



