258 Panama Shells. ARCIDJE. 



Area aviculoidesTteeve 1 'Conch. Icon. pi. 10. f. 63. Mar. 1844. 



Station. Muddy bottom at the depth of 10 fathoms ; Cum- 

 ing ! Sowerby : also Eeeve. 



Habitat. St. Elena; Cuming! Sowerby: also Reeve. 



Panama ; C. B. A. ! 



1 specimen was obtained, which is too young to be confi- 

 dently determined without a series. 



415. Area emargiiiata. 



Synonymy. 



Area emarginata Sowb. in Proc. Zool. Soc. Lond. p. 20. Feb. 1833. 



- Mull. Syn. Test. Viv. p. 180. 1836. 



- Reeve Conch. Icon. pi. 4. f. 26. Jan. 1844. 



- Hanley Descr. Catal. p. 161. 1845? 



- Orb. Voy. Amer. Merid. Moll. p. 635. 1846. 



Station. Sandy mud at the depth of 6 or 8 fathoms ; Cum- 

 ing ! Sowerby : also Reeve. 



Habitat. Real Llejos, Atacamas, Xipixapi, Panama, and 

 Gulf of California ; Cuming ! Sowerby : also 

 Reeve. 

 Atacama, Xipixapi, and Panama ; Cumiug ! 



Orbigny. 



Central America ; Hanley. 

 Panama ; C. B. A. ! 

 3 specimens were obtained. 



416. Area gradata. 



Synonymy. 



Area gradata Brod. and Sowb. in Zool. Journ. IV. 365. 1829. 



- Gray in Zool. Beech. Voy. p. 152. pi. 43. f. 1. 1839. 



- Reeve Conch. Icon. pi. 14. f. 92. Apr. 1844. 

 Hanley Descr. Catal. p. 155. 1845 ? 



- Orb. Voy. Amer. Merid. Moll. p. 636. 1846. 



