88 Panama Shells. PUKPURIDJS. 



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



Cuming ! Sowerby ; also Miiller. 

 Shores of San Bias ; Kiener. 

 Acapulco ; Lesson. 



Panama, St. Elena, and Monte Christi ; Deshayes. 

 Mazatlan; Melchers! Menke. 

 Panama; Jay. 

 Taboga ; C. B. A. ! 



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 .33 inch long. 



87. Colmubella giblierula. 



Synonymy. 



Columbella gibberula 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. 15. f. 3. 



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



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

 Desh. in Laui. An. sans Vert. X. 



292. No. 47. . 1844. 



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



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. ! 



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

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



