94 NATICA. 



with two spiral bands of white spots cut out, as it were, in 

 the orange ground colour. 



115. GLOBOSA, f. 47, Chemnitz. — Globoso-subovata albida 

 castaneo-grisescenti trifasciata, intervallis pallide castaneis, 

 anfractibus superne declivibus, infra albis ; apertura semi- 

 circulari, intus obscure fasciatis ; umLilico lato, margine 

 tumido ; columella subarcuata, labio interno ad anfractum 

 ultimum late reflexo. — Almost ovate in form, delicately 

 coloured, in purplish-grey bands fused into unity by a per- 

 vading chestnut. Umbilicus wide open, columellar lip thick, 

 reflected, and callous at the upper part. 



116. FoESKALii, f. 39, Chemnitz. — Grlobosa albida tenuis, 

 fasciis tribus purpureo-castaneis interruptis cincta; spira 

 brevi, acuminata, anfractibus versus suturam depressis, leviter 

 plicatis ; apertura magna, umbilico subplanato superne calloso, 

 medio vix lobato. — The purplish broad bands are prettily 

 interrupted and divided. 



117. SEPTENTEiONALis, f. 67, Beck. — Grlobosa, tenuius- 

 cula, superne obscure castanea ; spira breviuscula, anfractibus 

 superne depressis, ultimo subtus albido, spiraliter bilirato ; 

 umbilico per callum columellarem partim celato ; labio in- 

 terno prope suturam calloso. — Rather more globose than 

 N. monilifera, of a dull chestnut colour down to the lower 

 part, where the colour is intercepted with a white band. 



118. GENUANA, f. 139, Reeve. — Globosa fulva, fasciis pal- 

 lidioribus quaternis castaneo maculatis, interstitiis latioribus 

 rubro punctatis picta ; spira brevi anfractibus convexis ad 

 suturam crenatis ; apertura ovata, subdepressa, labio interno 

 superne calloso, medio latissime lobato, umbilicum tegenti. — 

 Coloured by light narrow bands with large spots, and broad 

 darker bands with minute dots. Umbilicus covered with a 

 callous pad extending widely from the columella. 



119. GrAMBiiE, f. 49, Recluz. — Alba, oblique globosa; spira 

 brevissima, anfractibus ad suturam plicatis, ultimo infra 

 spiraliter bimarginato ; umbilico angusto ; columella ad 

 ultimum anfractum late callosa, ad umbilicum unilobata. — 

 Rounded, white, with wrinkles at the suture and a kind of 

 double edge at the bottom of the last whorl. The narrow 

 umbilicus is partly covered by a lobe on the columellar 

 callus 



