oLivA. Panama Shells. 55 



On the sand beach, next west of Panama, we collected 

 20 dead but entire specimens. 



39. Olira undatclla. 



Synonymy. 



Oliva undalella Lam. in Ann. Mus. XVI. 326. No. 65. 1810. 



Lam. An. sans Vert. VII. 438. No. 58. Aug. 1822. 



tenehrosa Wood. Ind. Test. Supp. pi. 4.f. 38. - 1828. 



undatella Duel. Mon. Oliva. pi. 5. f. 5-10. 1835. 



Gray, Zool. Beech. Voy. pi. 36. f. 23, 27. 1839. 



Duclos in Chenu 111. Conch, pi. 6. f. 5-10. 1843. 



Lam. An. sans Vert. X. 630. No. 58. 1844. 



Reevo Conch. Icon. pi. 25. f. 73. - Oct. 1850. 



Wood's accurate figure appears to .have been overlooked 

 by most authors. 



Station. — In sand and on mud banks at low water ; Cuming ! 

 Reeve, 



Habitat. — Unknown ; Wood. 



Acapulco ; Humboldt and Bonpland ! Lamarck : 



Duclos. 

 West coast of Mexico ; Say in Catal. Mus. 

 Pacific ; Ravenel in Catalogue. 

 Mazatlan ; Melchers ! Menke. 

 Acapulco ; Jay. 



Bay of Panama ; Cuming ! Reeve. 

 Panama ; E. Jewett ! Gould Mss. 

 Panama ; C. B. A. ! 



For this species I was indebted wholly to the hermit crabs. 

 15 specimens were obtained near a sandy spot on the reef, 

 near low water mark. They are all of one pattern of coloring 

 intermediate between Wood's figure and 73 b of Reeve. 



