20 OLIVA. 



97. volvaroides (f. 225, 226). — Cylindraceo-subelongata, 

 castanea vel flavida ; spira brevi, callosa, columella dense et 

 tenuiter plicata, plicis calli antici tenuibns dnplicatis ; aper- 

 tura intus sordide subviolacea, labio ad medium subsinuato. 

 A uniformly-coloured chestnut shell, of no very distinctive 

 characters. 



98. picta (f. 227-228), Reeve. — Cylindraceo-subinflata, 

 fulvo-grisescens, lineis pnnctisque rubro-griseis angulatis 

 notata ; balteo unifasciato ; columella dense et acute plicata ; 

 apertura intus subcaerulea, castaneo marginata, labio tenui. 

 — The specimens of this, as figured by Reeve and in this 

 monograph, have the appearance of undeveloped shells. 



99. arctata (f. 229, 230), Marrat. — Quam O. Pacifica 

 (sp. 70) magis arctata et cinerea. — This, as observed by Mr. 

 Marrat, is the narrowest of any species in proportion to its 

 length, — in this respect alone, as the Editor thinks, differing 

 from O. Pacifica. The comparatively pale colour of the 

 latter can scarcely be regarded as an important distinction. 



100. sidelia (f. 231, 232), Duclos. — Oblongo-cylindracea, 

 subcinerea, prope suturam unifasciata, dorso unimaculato, 

 ventro pallide lineato ; spira brevissima; anfractibus ro- 

 tundis, balteo flaminato; columella tumide plicata; aper- 

 tura. pallide fusca. — Described and copied from the figure in 

 Duclos. 



101. carneola (f. 333-235), Solander. — Oblongo-subovata, 

 supra medium subangulata, alba et carnea, aurantio fasciata ; 

 spira, brevissima, callosa ; columella valide pauci - plicata, 

 calli antici plicis quatuor crassis, postica, elevataj apertura 

 intus rosea; labio albo, utrinque abraso. 



102. bianda (f. 236-237). — O.pidce sirnilis, magis ventri- 

 cosa ; labio incrassato. — Very strongly suspected to be O. 

 picta in a mature state, although wanting the dark band or 

 blotch of colour on the belt. — Ed. 



103. faba (f. 238, 239), Marrat. — Oblongo-cylindrica, 

 fulva, lineis distantibus fuscis angulatis notata ; spira, bre- 

 vissima,, callosa; columella plicata, plicis calli antiqui qua- 

 tuor transversis distinctis ; apertura intus purpurea vel fusca, 

 labio crasso. — The back view of O. sidelia in Duclos is pro- 



