APPENDIX. XXXlll 



2331. OLIVA PATULA. 



Voluta patula, sen apcrta, Sol. MS. 



O. testri oblonga, dcprcssiusciila, subalata ; grisco- 

 lutescente, maciilis fulvis pallidis ailspcrsi, spira 

 brevi coluniellaque supcrne callosis ; callo incras- 

 sato, albo, laevi, columella alba oblifjuc sulcatA, 

 plica majusculd ad basiin iiiternam ; cingiilo basali 

 griseo-lutescente, bipartito, pallide fulvo macu- 

 lato : apei'tura pallidA, siibfuscA, patula, superne 

 subrotiiiidata: loiic^ 1 ; hit. y\ 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 coloin- of the l)ody whorl above 

 the double belt is greyish yellow, through which are 

 sometimes seen pale markings of a fuscous colour, 

 these are not, however, always ol)servable. In one 

 specimen, which appears to have licen 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. testa ovali, griseo-fulvescente, longitudinalitcr 

 substriata, Ijevi ; spira subacuminatA, sutnra sub- 

 fusca ; columella la'vi, superne callosft, ad basiin 

 biplicata; apertura, colunielhe basi, cinguloque 

 basali violacco tinctis ; long. 1 lat. -A unc. 



K 



