36 OLIVA. 



antico in plicam tortuam terminanti ; labio tenui, diaphano. 

 — Like 0. alectoiia, Duclos, but having one basal plait on 

 the columella instead of two. 



188. intorta (f. 455), Carpenter. — Figured from a speci- 

 men in the British Museum. 



189. anazona (f. 419), DhcIos. — Angusta, oblique subcy- 

 lindrica, semipellucida, pallida, strigis undulatis fulvis pal- 

 lidis quasi-reticulatis infra suturam et supra balteurn cas- 

 taneo-ustulato maculata ; spira brevi, fusco-ustulata ; balteo 

 medio castaneo; columella subrotunda, plicis calli antici 

 duabus albis prominentibus ; apertura antice dilatata ; labio 

 tenui, margine maculate — A very richly coloured semi- 

 transparent little shell, with subreticulated markings in the 

 centre. 



190. fabttla (f. 420, 421), Marrat. — Lanceolato-fusiformis, 

 cinerea, lineis rubris acutis angulatim undulatis infra sutu- 

 ram et supra balteum dense approximatis notata ; spira 

 elongato-conica, acuta, cseruleo alboque fasciata; balteo 

 aureo, nonnunquam dimidiatim candido ; columella lira 

 elevata continua, angusta, arcuata, marginata, plicis termi- 

 nalibus duabus perobliquis; labio abraso, margine fusco et 

 albo. — The columellar callus is formed into a thickened 

 ridge continued the whole length, a peculiarity which I have 

 not observed in any other species. 



191. Fortunei (f. 422, 423), Adams. — Late fusiformis, 

 cinerea, ad suturam macula fusca cincta, medio lineis fuscis 

 undulatis notata; spira conica, acuminata; balteo fiavido, 

 fulvo, vel variegato ; columella rotunda, subcallosa, plicis 

 terminalibus tribus obliquis albis ; labio tenui, postice emar- 

 ginato. 



192. nota (f. 428), Marrat. — Oblongo-lanceolata, obtusa, 

 albido-subrosea, maculis latis angulatim undulatis medio 

 pallidis supra et infra vividis magnis notata ; balteo albo ; 

 columella antice plicis duabus purpureis obliquis terminanti ; 

 labio pellucido, tenui, antice infra columellam dilatato. — 

 Characterized by very broad markings, and by the two folds 

 of the terminal columellar callus being purple. The speci- 

 mens somewhat resemble 0. bcetica, with which one of them 



