88 Panama Shells. pxjepukid^. 



Habitat. — Common at Panama, St. Elena, and Monte Christi ; 

 Cuming I Sowerby ; also Miiller. 

 Shores of San Bias ; Kiener. 

 Acapulco ; Xesson. 



Panama, St. Elena, and Monte "Christi ; Desbayes. 

 Mazatlan; MelchersI Menke. 

 Panama; Jay. 

 Taboga ; C. B. A, I 

 At the season of our excursion to Panama, specimens were 

 scarce. We obtained only 4 living and 2 dead shells. One of 

 these, although mature, is only .38 inch long. 



87. Colunibella g^ibberula. 



Synonymy. 



Columbella gibherula Sowb. in Proc. Zool. Soc. Lond. 



p. 115. June. 1832, 



Mull. Synop. Nov. Test. Viv. p. 83. 1836. 



Duel, in Chenu 111. Conch, pi. 12. 



f. 5, 6. - - - - - - 1843. 



Kiener Iconog. p. 44. pi. 16. f. 3. 



Sowb. Thes. Conch, p. 136. No. 



136. pi. 39. f. 142-3. - - 1844. 

 Desh. in Lam. An. sans Vert. X. 



292. No. 47. . - - 1844. 



Station. — In sandy mud, at 11 fathoms depth ; Cuming I 



Sowerby. 

 Habitat. — Bay of Caraccas, and Puerto Portrero; Cuming! 



Sowerby ; also Miiller. 



Shores of Chili ; Kiener. 



Shores of Southern and Central America ; Deshayes. 



Central America ; Jay. 



Taboga ; E. Jewett ! Gould MSS. 



Taboga ; C. B. A, I 

 We found 7 specimens occupied by hermit crabs in a perfo- 

 rated log. The northern boundary of Chili is the most extreme 



