XXXIV APPENDIX. 



Obs. A pretty little Olive, of a very rcguLar oval 

 form, from the west coast of North America; its 

 smooth columella, callous at the upper part, and 

 having two small folds at the base, is its principal 

 characteristic mark. 



2333. OLIVA COLUMELLARIS. 



O. testa oblonga, deprcssa, fusca, apice, basi, fasciis- 

 que duabusalbidis ; labio columcllari albo, iiicras- 

 sato, calloso ; callo supcrne inter superiorem labii 

 extcrni partem ct spirum interposito; plic^ unicft 

 ad basim internam cohimcUffi; aperturA, superne 

 acuta, siibtus cffusa, margine albido; operculo te- 

 nui, lauceolato, cornco. Long. -['^ lat. ,\ unc. 

 Obs. The singularly incrassated, callous upper 

 part of the inner lip scpai'ating the spire from the 

 upper part of tbe aperture, gives to this shell a very 

 extraordinary appearance, and forms tlie character- 

 istic feature of the sjjccies. Tlie inside of tlie aper- 

 ture is (lark brown, with a single, neai'ly central yel- 

 lowish band. 



21G7. CONUS CINOULATUS: 



C. testa s\ibcylindraceo-ol)Ioiiga, ^'cntricosiuscuhi, 

 alba, pallide roseo nubcculata; spira sidcata, an- 

 fractuimi marginibus clevatis : anfractu ultimo 

 supra infra(j\ic sulcato, medio cingulo planato ; 

 c(duniella, basi subumbilicata ; long. 2 unc, lat. 

 1 ,V iin<-. 



Obf. This is a very delicate Cone, which we do 

 not find dcscribcid by Lamarck nor figured in the 

 Encyclopaedia ; it approaches nearly in shape to Co- 

 nus bullatus, it is wliite with delicate rose-coloured 

 irregular markings ; its spire, as well as the upper 

 and lower extremities of the last volution, is deeply 

 grooved. 



