APPENDIX. XXXm 



2331. OLIVA PATULA. 



Voluta patula, sen aperta, Sol. MS. 



0. test^ oblonga, depressiuscula, subalata; griseo- 

 lutescente, maculis fulvis pallidis adspersd, spira 

 brevi columellaque superne callosis ; callo incras- 

 sato, albo, Isevi, columella alba oblique sulcata, 

 plic^ majuscule ad basim internam ; cingulo basali 

 griseo-lutescente, bipartito, pallide fulvo macu- 

 lato : apertura pallidtl, subfusca, patula, superne 

 subrotundata : longl|lat, ^^^ unc. 



Obs. From the Brazils. This is certainly a very- 

 remarkable species, which we do not find noticed by 

 any author: its depressed form, large expanded outer 

 lip and consequently wide aperture, together with 

 the depression at the base of the body volution above 

 the varix and the large acute-edged fold at the base 

 of the columella distinguish it at once from all 

 others. The external colour of the body whorl above 

 the double belt is greyish yellow, through which are 

 sometimes seen pale markings of a fuscous colour, 

 these are not, however, always observable. In one 

 specimen, which appears to have been treated with 

 acid or to have had its outer coat otherwise abraded, 

 these angular fuscous markings are much more dis- 

 tinct. This is certainly not a common species ; there 

 are, however, several remarkably fine specimens of 

 it in the collection of Mr. G.Humphrey. Two varie- 

 ties may be distinguished, one of which is much 

 broader than the other. 



2332. OLIVA BIPLICATA. 



O. test^ ovali, griseo-fulvescente, longitudinaliter 

 substriata, laevi ; spira subacuminatt, sutura sub- 

 fuscS ; columella laevi, superne callos^, ad basira 

 biplicat^; aperturi, columellas basi, cmguloque 

 basali violaceo tinctis ; long. 1 lat. -^^ unc. 



