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OF NASSA FROm Fltfl A.\0 j\ElkV €AIii:»0- 



By H. B. Preston F. Z. S. 



Nassa mamillata nov. sp. 



Testa ovata-acuminata, solida, luteo-alba, in peristomate 

 macula ruhro-brunnea picta. Anfr. 6 i fi, sutura profunde im- 

 pressa discreti, ultimi 5 costis longitudinaUbus validis et 

 funiculis decurrentibus interruptis sculpti : funiculi supra 

 costas valde prominent, inter costas vero evanescunt, ibi strise 

 spirales tenuissimse tantum conspiciuntur . Apex mamillariSy 

 lœvis. Labrum extus varicosum, incrassatum, intus prope 

 marginem denticulatum. Apertura ovata, breviter caiiali- 

 culata ; columella arcuata, denticulata; callum columellare 

 superne dente conspicuo instructum. 



Alt. 9™"», diam. maj. 5™™. Apertura : ait. 2™™, diam. 



Shell acuminately ovate, solid, yellowish whitepainted 



Fig. 1. — Nassa mamillata B. Preston 



with a light reddish brown blotch just below the raiddle 

 ôf the varieose peristome; whorls 6 1/2, the last 5 sculp- 



2 



