96 • NATICA. 



callus. The two purplish-chestnut bands are remarkably 

 characteristic of this species. 



125. CLAUSA, f. 48, Broderip and Sowerhy. — Alba globosa, 

 spira paulo exserta, anfractibus ad suturam depressis tvim 

 rectiusculis ; umbilico brevi, rotundo, columella infra an- 

 fractum ultimum in lobum rotundum expansa. — A rounded 

 white shell with short spire and shouldered whorls, and short 

 round umbilicus, over the upper part of which the columella 

 is expanded into a rounded pad. 



126. TEXTiLis (no figure), i?eeve. — Grlobosa, tenuis, superne 

 cserulea, medio et infra subviride fulva, maculis magnis fuscis 

 triseriatim picta ; umbilico magno, callo spirali mediano, 

 angusto, columella lobata, ultimo anfractu subdepresso, 

 operculo testaceo. — A characteristic shell unfortunately 

 omitted in the plates. It is thin, globose, and of a dull 

 greenish-bay colour, with three bands formed of angular 

 broad brown patches. Although thin, it has a shelly oper- 

 culum and a spiral umbilical callus. 



127. CATENA, f. 50, Philippi. — Globoso-subacuminata 

 tenuiuscula fulva, ad suturam fusco maculata; spira pro- 

 ducta, anfractibus subrotundis ; umbilico latiusculo ; colu- 

 mella callosa, ad umbilicum paulo expansa, simplici. — This 

 globose, fawn-coloured sliell is familiar to British collectors, 

 and is distinguished by its shouldered whorls and the row of 

 reddish spots near the suture ; the columella is simple, widen- 

 ing upwards over part of the rather wide umbilicus. 



128. SORDIDA, f. 98, Philippi.—N. catence similis, sed 

 sordide fusca immaculata, angustior, magis acuminata, an- 

 fractibus magis declivibus, apertura angustiori, labio interno 

 magis calloso. — The colour has a dull uniformity, and the 

 whorls of the spire a gradual slope, which are not found in 

 N. catena. 



129. GECENLANDiCA, f. 140, Beck. — Albida, globosa, 

 crassa; spira parviuscula ; umbilico angustissimo ; columella 

 crassa, rotunda. — Solid, whitish, rounded ; spire short, obtuse, 

 with scarcely shouldered whorls ; umbilicus very small, some- 

 times covered by columellar callus. 



130. MoNTACTJTi, f. 141, Forbes. — Globosa parva fulva, 

 spira subpvoducta ; umbilico lato ; columella crassiuscula ad 



