146 Panama Shells. MURICIDJE. 



Panama, Gulf of Nicoya, and western coast of 



Mexico ; Hinds ! Keeve. 

 Panama ; Jay. 

 Panama ; C. B. A. ! 

 8 specimens were obtained. 



179. Pleurotoma pallida. 



Synonymy. 



Pleurotoma pallida Sowb. in Proc. Zool. Soc. Loud. p. 13*7. Dec. 1833. 



Mull. Synop. Nov. Test. Viv. p. 113. May 1836. 



- Reeve Conch. Icon. pi. 16. f. 134. Aug. 1843. 



Station. A sandy muddy floor at the depth of 13 fathoms ; 

 Cuming ! Sowerby : also Eeeve. 



Habitat. Puerto Portrero ; Cuming ! Sowerby : also Eeeve : 



also Miiller. 

 Panama ; C. B. A. ! 

 12 specimens in various stages of growth were obtained. 



180. Pleurotoma rigida. 



Synonymy. 



Clavatula rigida Hinds in Proc. Zool. Soc. Lond. p. 45. Mar. 1843. 



Hinds inVoy. Sulph. Moll. pi. 7. f. 18. 1844, 



Pleurotoma Reeve Conch. Icon. pi. 25. f. 216. Oct. 1845. 



Station. Unknown. 



Habitat. Panama ; Hinds ! quoted by Eeeve. 



Panama ; C. B. A. ! 



We collected 20 specimens of this species in some calcareous 

 sand near the sea wall of Panama. 



181. Pleurotoma rudi. 



Synonymy. 

 Pleurotoma rudis Sowb. in Proc. Zool. Soc. Lond. p. 134. Dec. 1833. 



