88 NATICA. 



vix convexis ; umbilico lato, subsulcato, labio interno supeme 

 incrassato, infra vix lobato ; apertura purpurea, aureo mar- 

 ginata, pyriforrai. — In fornci a little more pyramidal than the 

 British N. sordida, of a dark ashy colour, with the mouth 

 dark purple and gold-edged, and the suture and columella 

 edged with gold. 



76. LEUCOPHiEA, f. 60, Reeve. — Oblique globosa, fusco- 

 plumbea, spii'a breviuscula, anfractu ultimo infra inflato ; 

 apertura magna, infra expansa, labio columellari albo, superne 

 expanso calloso ad umbilicum semirotunde lobato, margins 

 aurantio, umbilico magno. — Of a dull leaden-brown colour, 

 with a columellar lip, which is broad and callous on and below 

 the body-whorl, and lobed at the umbilicus. It is white, 

 with an orange-red margin. 



77. SOLIDA, f. 81, Blai7iville.^CrsiS?a, rotunda castanea 

 spira depressa, pyramidata; apertura castaneo marginata intus 

 cinerea, callo umbilicali subtrigono, latissimo, castaneo 

 nigricanti umbilicum tegenti. — A round, depressed, chestnut- 

 coloured species, with a very dark, broad, three-cornered 

 umbilical callus, covering a wide umbilicus. 



78. CONICA, f. 25, Lamarck. — Pyriformis pallide fulva 

 griseo late fasciata ; spira elevata, anfractibus declivibus, ad 

 suturam albo fasciatis, columella superne expansa et tumida, 

 aurantio-nigrescenti, ad umbilicum leviter lobata, umbilico 

 parvo, callo spirali angustissimo. — The most pyramidal of all 

 the species, differing from the mamilla group in having a 

 spiral callus, although a small one. 



79. USTULATA, f. 112, Sowerby. — Alba, pyramidata, poli- 

 tissima, spira elevata, anfractibus convexiusculis, umbilico 

 brevi castaneo, apertura brevi, labio interno superne ad 

 anf'ractum expanso, medio tumide lobato, macula magna ovata 

 picto. — Eesembling N. conica, but shorter, with the whorls 

 more convex. No visible spiral callus, but a columellar pad 

 over the narrow umbilicus, with a large brown spot upon it. 



80. JuKESii, f. 55, Reeve. — Alba nitens, subquadratim glo- 

 bosa; spira brevissima, anfractibus superne depressis, tum 

 tumidis ; umbilico magno, callo columellari ad ultimum an- 

 fractum lato, crasso, infra versus columellam oblique lobato 

 et contracto. — The whorls are somewhat tumid above and 

 below, and the large umbilicus is two-thirds uncovered. 



