D L I U M 



Plate IV. 



Species 5. (Mus. Cuming.) 

 DoLiuM KiNGENS. Dol. testd globosd, crassiusculd, spirit 

 brevi, acuta, anfractibus septem, iramversim cosiatis, 

 cosiis ad sedecim, obsctcre superficialiter blsectis, cobt- 

 melld medio pecuUariter excavatd, callositate magna 

 costatd supra et infra miiiiitd, labro cohtmellari laii 

 cxpanso, aperturd coidrudd. lalro externa laVmime 

 phtto-rvfiexo etfortiter deiilato ; fidvescente vel aiiran- 

 tio-albidd. 

 The grinning Tun. Shell globose, rather thick, spii-e 

 short, sharp, whorls seven in number, transversely 

 ribbed, ribs about sixteen in number, obsciu'ely 

 superficially bisected, columella distinguished by a 

 peculiar excavation in the middle, having a large 

 rJiljid callosity above and below it, cohimellar lip 

 witlely expanded, aperture contracted, outer lip very 

 broadly flatly reflected and strongly toothed; light 

 fidvoiis or orange-white. 

 Cassi.'i riiKjem, Swainson in Bligh Catalogue ; Sowerby in 

 Taukerville Catalogue, App. p. xxi. 

 J/ft/n/ } at Hubris, Valenciennes. 

 Dolimii latilabre, Kiener. 

 Hab. Payta, Peru ; Cuming. 



This remarkable species and the one which tbUows, 

 possess an association of character intermediate between 

 Bolium. and Cassis, which gives them a strong claim to 

 rank as a separate genus, as proposed by M. Valenciennes 

 under the title of Malea. They are of more solid growth 

 than any other species of Bolium, and are singularly cha- 

 racterized by an excavation of the columella, which lias 



some obtuse wrinkles or ribs aliove and below it. TI'a 

 outer Up is moreover distinguished by the mode in which 

 it is flatly reflected and toothed. 



Species 6. (Mus. Cuming.) 



DoLiUJ[ POMUM. Bol. testd oblongo-oratd, turgidd, solidd, 

 siibimibilicatd, spird bran, aufractibus sex, transversim 

 costatis, costis ad duodecim, obtusis, medianis, vix 

 elevatis, cohimelld rude corntgato-costatd, callosd, nan 

 expansd, basin versus excavatd, aperturd suhcontractd, 

 labro plano-reflexo, intus dentato ; fuho-spadiced, albi- 

 mactdatd, aperlurce fauce aurantid. 



The apple Tun. Shell oblong-ovate, swollen, solid, 

 slightly umbOicated, spii-e short, whprls six in 

 number, transversely ribbed, ribs about twelve in 

 number, obtuse, the middle ones scarcely elevated, 

 columella rudely ribbed in a wrinkled manner, callous, 

 not expanded, excavated towards the base, apertm'e 

 somewhat contracted, lip flatly reflected, toothed 

 within ; light fidvous bay, sprinkled with white 

 spots, interior of the aperture orange. 



Lamarck, Anim. sans vert. (Deshayes' edit.) vol. x. p. 1 42. 

 Biicciuum pomum, Linnaeus. 

 Cassis labrosa. Martini. 



Hab. Society and Philippine Islands ; Cuming. 



The excavation of the columella is much less defined 

 than in the preceding species, and the columella also 

 differs in not having an expanded laminar lip, its place 

 being occupied by a callous dei)osil of \\'liite enamel. 



December, 1848. 



