SPECIES 



NOT YET ENCOUNTERED OR RECOGNIZED. 



C ALU ANAS S A, Leach. C. Oregonensis, Dana. 



Callianassa Oregonensis, Dana ; Wilkes's Exped., p. 722, pi. 17, fig. 3. 

 Miocene, Oregon. 



MUREX, Linn. M. fragilis, Trask. 



Id., Trask; Proc. Cal. Acad. Nat. Sci., 1855, p. 42. 

 Post-Pliocene, Santa Barbara. 



FUSUS, Lam. F. arctatus, Con., sp. 



Colus arctatus, Con. ; P. E. E. Sep., Vol. 5, p. 329, pi. 8, fig. 76. 

 Fusus arctatus, Meek ; Smithsonian Check List, No. 749. 



F. Barbarensis, Trask. 



Id., Trask; Proc. Cal., Acad. Nat. Sci., 1855, p. 42. 

 Post-Pliocene, Santa Barbara. 



F. robustus, Trask. 



Id., Trask; loc. cit. 

 Post-Pliocene, Santa Barbara. 



F. rugosus, Trask. 

 Id. , Trask ; loc. cit. 

 Post-Pliocene, Santa Barbara. 



BUSYCON". ? B. Oregonensis, Con., sp. 



Fusus id , Con. ; Amer. Jour. Sci., 1848, p. 433, fig. 13. 

 Sycotypus id., Con. ; Jour. Conch., 1865, p. 151. 

 Busycon ? id., Meek; Sm. Check List, Nq. 743. 

 Miocene, Astoria. 



( 1" ) 



