NA 9SA. 



Panama Shells. 63 



coquille ; il y a, sans doute, erreur." Lesson in Rev. Zool. 

 Aug. 1842. 



49. IVassa iioclifera. 



Synonymy. 

 Nassa nodifera Powis in Proc. Zool. Soc. Lond. p. 95. June. 1835. 



This shell has distant fine spiral striae, which are usually 

 obsolete on the middle of the whorls. Some specimens are 

 ornamented with spiral lines of dark brown, and rarely the 

 whole shell, except the aperture, is dark brown, Mr. Powis 

 disposes of the coloration with the single word albescente, but 

 otherwise his brief description corresponds exactly with our 

 shells. 



Station. In coral sand, in from 6 to 10 fathoms ; Cuming ! 

 Powis. 



Habitat. Clallapago Islands and the shores of Panama ; 



Cuming ! Powis. 

 Taboga ; C. B. A. ! 



40 specimens were collected. 



50. IVassa pagodiis. 



Synonymy. 



JSuccinum decussatum Kiener (nee Linn, nee Lam.) p. 109. No. 



106. pi. 30. f. 3. 

 Triton pagodus Reeve in Proc. Zool. Soc. Lond. p. 



121. July. 1844. 

 . Reeve Conch. Icon. pi. 20. f. 97. Aug. 1844. 



The colors are sometimes more intense than in Mr. Reeve's 

 figure. From M. Petit we have received two specimens la- 

 belled B. decussatum Kiener; Payta. 



Station. Unknown. 



