MUREX. Panama Sheik. 121 



Habitat. — Unknown ; Eeeve. 

 Panama ; 0. B. A. I 

 We collected 6 specimens of this very aberrant species. 



136. ITIurex dubins. 



Synonymy, 



Murex aculeatus Wood (non Lam.) Itid. Test. Supp. pi. 6. f. 19. 1828. 



dubius Sowb. Conch. 111. No. 119. pi. 61. f. 23. 1841. 



Eeeve Conch. Icon. pi. 26. f. 116. Aug. 1845. 



Station. — Under stones near low water mark. 



Habitat. — ^Unknown ; Wood. 



Panama ; Cuming I Sowerby : also Eeeve. 

 Mazatlan ; Melchers I Menke. 

 Panama; Jay. 

 Panama ; 0. B. A. 1 



We collected 72 specimens on the reef. The spines are 

 remarkably acute. 



137. Iftnrex erosus. 



Synonymy. 



Murex erosus Brod. in Proc. Zool. Soc. Lond. p. 1Y4. Oct. 1832. 



Mull. Nov. Test. Viv. p. 93. May 1836. 



^ Sowb. Conch. 111. No. 104. pi. 60. f. 16. 1841. 



Reeve Conch. Icon. pi. 32. f. 160. Aug. 1845. 



Station. — Under stones ; Cuming I Broderip : also Eeeve. 

 Our specimens were found under stones near low water 

 mark. 



SaJiM— Panama; Cuming I Broderip: also Sowerby: and 

 Eeeve. 

 Panama ; C. B. A. I 

 We obtained 2 specimens on the reef. 



JULY, 1852. 31 ■*'™- *•"■ Nat. Hib*. 



