CHAMA. Panama Shells. 253 



Habitat Panama ; C. B. A. ! 

 2 specimens were obtained. 



Family CHAMID^E. 

 405. Chama Buddiana. Nov. sp. 



Shell orbicular or sub triangular : exterior surface and inner 

 margins purplish red, with the spines pure white: surface 

 uneven, with interrupted radiating strias ; upper valve orna- 

 mented with a few radiating series of short thick triangular 

 vaulted spines : lower valve attached by about two-thirds to 

 three-quarters of its surface, the rest being like the upper valve, 

 but with the dentiform spines smaller : within both valves are 

 deeply and finely crenulated at the junction of the white sur- 

 face and red margin : beak submarginal. Easily distinguished 

 from C. Pacifica and C. Broderipii by the small thick dentiform 

 triangular white spines. 



Diameter about 3 inches. 



Station. On ledges of rocks, a little above low water mark. 

 The lower valve is so firmly attached as to render it difficult to 

 obtain specimens entire without the use of mineralogical tools. 



Habitat. Guaymas ; Lt. Green ! Mus. Essex Inst. 



Panama ; C. B. A. ! 

 6 specimens were obtained. 

 Named in honor of Dr. B. W. Budd of New York city. 



406. Chama corru^rata ? 



Synonymy. 



Chama corrugata Brod. in Proc. Zool. Soc. Lond. p. 150. Dec. 1834. 



Brod. in Trans. Zool. Soc. Lond. I. 305. 



pi. 31. f. 7. 1835. 



Ilanley Descr. Catal. p. 229. 1845? 



Pieeve Conch. Icon. pi. 2. f. 9. Dec. 1846. 



Possibly our shell may be a large specimen of C. Panamen- 



