NUCULA. Panama Shells. '255 



Station. — Sandy mud, at a depth of 6 fathoms ; Cuming I 

 Sowerby. 



Eahitat. — St. Elena ; Cuming I Sowerby : also Miiller. 



West Columbia; Hanley. 



Panama ; C. B. A. I 

 20 odd valves were found, 



409. IVucnla exigua. 



Synonymy. 



Kueula exiffiia Sowb. in Proc. Zool. Soc. Lond. p. 198. Dec. 1832. 



Miill. Syn. Test. Viv. p. 192. 1836. 



• Sowb. Conch. 111. No. 34. pi. 16. f. 24. 1841. 



Hanley Descr. Catal. p. 172. 1845 i 



Orb. Voy. Amer. Merid. Moll. p. 625. 1846. 



Station. — Sandy mud, in 9 fathoms ; Cuming I Sowerby : 



Habitat. — Bay of Caraccas ; Cuming I Sowerby : also Muller : 

 also Orbigny. 



West Columbia ; Hanley. 



Panama ; C. B. A. I 

 1 valve only was found. 



410. IVucula polita. 



Synonymy. 



Nucula polita Sowb. in Proc. Zool. Soc. Lond. p. 198. Dec. 1832, 



Lam. An. sans Vert. VI. 507. No. 8. (Desh. ed.) 1835, 



MOU. Syn. Test. Viv. p. 190. 1836. 



Lam. An. sans Vert. IL 660. No. 8, (Desh. ed. tert.) 1839. 



Sowb. Conch. 111. No. 16. pi. 15. f. 11. 1841. 



Keeve Conch. Syst. pi. 85. f. 11. Sept. 1841. 



Hanley Descr, Catal. p. 169, 1845 ? 



Station. — ^A single specimen of this very beautiful species was 

 dredged up in sand from a depth of 7 fathoms ; Cuming I 

 Sowerby. 



