330 Panamn SheJls, oALyPTB-sjpji, 



Qalyptrgea {^Qre^inJa) iquarn^ Prqd, in Tr^s, Zool, gpo. I^ond, 



I. 205. pi. 29. f. 10. - 183§, 



Miill. Synop. Nov. Test. Viv. p. 



151. - - - . May 1836. 



Crepidula Lam. An, sans Vert. VII. 648. 



No, IQ. (Desh, ed,) - 1838. 



: Lam. An, sanp Ve^t, III. Pt. 1. p. 



23P, No. 16. (Desh. ed, tert.) 1841. 



The gpeciraens vary muob in color ; the normal arrangement 

 is with dark reddish brown rays on a whitish ground ; in some 

 shells the rays are few and faint ; in others they are crowded or 

 even confluent. The surface ia incurved or excurved according 

 to the figure of tho spot on which they grow- 



Station. — Under stones 9,nd in dead shells near low water mark. 



Habitat. — Panama ; Cuming ! Broderip : also Miiller. 

 Panama ; Deshayes : also Jay. 

 Panama ; 0. B. A, ( 

 jt'30 specinjens wpres collected. 



850. Crepidula iingiiiformis. 



/Synonymy. 



QuftH, Test. pi. 69, f. U, 1742, 



Patella crepidula Linn. Syst. Nat. p. 125Y. No. 752.(Ed. 12.) 1 V67. 



r-. — r ^^r^^^. Gmel. In Linn. Syst. Nat. p. 3695. No, 17. 1788. 



^---^ Tiirt, Linn, Syst, Nat. IV, 554, I8O6. 



Broc. Foss. Subapp. II. 253. 1814. 



Crepidula ungui/ormis Lam. An. sans Vert,yi.Pt. 2. p. 25.No,4. 1818. 



Italica Pefr. Diet, dep Sc. Nat, XL 397, 1818. 



plana Say Journ. Ac^d, N^t, Sc, Phi}, (Old Ser.) 



IL 226. - - - . July 1821. 



Italica Diet. Classique d'Hist. Nat. V. 64. April 1824. 



unffuiforma Sowb, Gen, pi, — f, 6, 1824, 



calceolina Desh. Eneye. Meth. Vers. II. 26. No. 6. 



(2nd ser. pag.) - - - 183O. 



plana Say Amer. Coneh. pi. 44. 1830. 



• ungui/ormis Brod. in Proo. Zool. Soc. Lond. p. 89; May 1834. 



