54 Panama Shells. PURPURID.E. 



Habitat. Salango, West Columbia ; Cuming ! Reeve. 



Panama ; C. B. A. ! 



We obtained a few specimens, which were occupied by 

 hermit crabs, on the reef at Panama, near low water mark. 

 In the fruit shanty \ve purchased 175 specimens, which ap- 

 peared to have been taken alive. 



38. CMiva testacea. 



Synonymy. 



Oliva tcstacca Lam. in Ann. Mus. XVI. 324. No. 51. 1810. 



Lam. An. sans Vert. VII. 435. No. 51. Aug. 1822. 



Valen. in Humb. Rec. Obs. II. 334. 1833. 

 Duclos in Ckemi Conch. 111. pi. 3. f. 17. 18. (f. 19. 



20. excl.) 1843. 



Lam. An. sans Vert. X. 627. No. 51. Desh. Ed. 1844. 

 Reeve Conch. Icon. pi. 18. f. 30. Sept. 1850. 



Station. In sandy mud at a depth of about 6 fathoms ; Cu- 

 ming! Reeve. 



Habitat. The South Sea, on the shores of Mexico ; Humboldt 

 and Bonpland ! Lamarck. 



Acapulco ; Humboldt and Bonpland ! Valen- 

 ciennes. 



Mexico and California ; Duclos. 



Mazatlan ; Melohers ! Menke. 



Panama ; Jay. 



Real Llejos, Mexico ; Cuming ! Reeve. 



Panama ; C. B. A. ! 



Duclos says, " Habite le Mexique pour sa plus grande 

 taille, la Californie pour sa plus petite, et la Nouvelle Hollande 

 pour la variete blanche." The variety (f. 19. 20.) is evidently 

 a distinct species. Mr. Reeve's punctuation seems to imply 

 that R-eal Llejos is in Mexico, but since Real Llejoa is not in 

 Mexico, the latter must be another habitat on the authority of 

 Mr. Cuming, unless Mr. R. has fallen into a geographical 

 error. 



