NATICA. 85 



56. FORATA, f. 96, Reeve. — G-lobosa fulva punctata, fasciis 

 albis castaneo articulatis, et maculis maximis paucis ad 

 sutaram picta ; spira brevi, anfractibus rotundis, umbilico 

 castaneo maximo, callo diviso tenui spiraliter costato ; colu- 

 mella superne crassa lata, infra attenuata. — Differing frona 

 N. intricata in the roundness of the whorls, the spire of the 

 latter being more obliquely conical. 



57. ZELANDiCA, f, 119, Quoy. — Globoso-subpyramidata, 

 superne fulva, maculis castaneis arcuatis quinqvieseriatim 

 dispositis, spira subacuminata, anfractibus declivibus, aper- 

 tura obiiqua, intus castaneo suffusa, umbilico mediocri, colu- 

 mella lobata, callo umbilical! crasso. — The chestnut spots on 

 the white lines are curved. 



58. MAMiLLA, f. 28, 29, 30, Linnceus. — Alba, nitens, solida, 

 pyramidata ; spira elevata, anfractibus apicalibus brevibus, 

 ultimo magno declivi ; apertura semilunari, labio externo 

 superne elevato, labio columellari expanso, callo infra lobato 

 umbilicum tegenti. — A polished white shell, with a very 

 broadly callous inner lip, the lower part of which forms a 

 lobe nearly or entirely covering the umbilicus. iV. albula 

 (f. 30), Recluz, N. jpyriformis (f. 28), Eecluz, and N. inter- 

 media, Recluz, can only be regarded as more or less widened 

 or pyramidal varieties. 



59. CANDiDissiMA, f. 26, Le Guillou. — Alba, ponderosa, 

 globoso-subtrigona ; spira brevissima, depresso-conica, tum 

 tumida, infra expansa, callo umbilicali superne lato tumi- 

 dissimo, columella rotunda, callo spirali umbilicum implenti. 

 — White, thick, the last whorl increasing largely in breadth, 

 and the narrow umbilicus partly filled with a rounded spiral 

 callus. 



60. AUEANTIA, f. 15, 16, Lamarch — Solida, subpyra- 

 midata, N. 'inamillce similis, sed vivide aurantia sed flavida. 

 — The orange colour in one variety and the lemon in another 

 contrast beautifully with the brilliant white of the columellar 

 callosity, but hardly seem to justify the separation of this 

 from N. Tnamilla, except as a matter of convenience. 



61. DEiDOSA, f. 43, Reeve. — Depresso-globosa, crassa, 

 vivide aurantia ; spira brevissima, anfractibus depressis tum 

 tumidis, umbilico maximo, partim obtecto, columella latissime 

 callosa, callo ad umbilicum rotundo ; apertura anguste elon- 



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