OLI V A 



Plate XII. 



Spccips 20. (Fig. 0, h, c, Mus. Steciv.) 

 Ol.lVA ELEGANS. OHd. tentii cj/loidi'aceo-ovalu, Medio tti- 

 midiusculd, spird brevi, anfractu ultimo ad exiremita- 

 iem po-sfieam nperfurre in callodtate erecid produdo ; 

 viresmi/e niif hilrscnilr-alld, striijis olicuro-rindihiis, 

 nierideo el. cniivn-nij), iiehiiUiUs, ii,l,'rdi,„i fii\n<-iii,jrn 

 acid} pmmisri,;- miduld, rnh,,.,elhl li„si pallidr saii- 

 ijuineo tinctd, aperluric fauce carulescente-alhd. 

 The elegant Olive. Shell cylindrically ovate, rather 

 swollen in the middle, spire short, last whorl pro- 

 duced into an erect callosity at the posterior end 

 of the aperture ; greenish or yellowish-white, sharply 

 prouiisruously waved with olive-green or brown-black 

 streaks, clouded with blue and saffron-red, columella 

 Faintly tinged at the base with a blush of blood-red, 

 interior of the aperture bluish-white. 

 Lamarck, Anim. sans vert. (Deshayes' edit.) vol. x. p. lill . 

 Hah. Feejee Islands. 



This species is chiefly distinguished from tiiose which 

 accompany it in the plate, by its shorter anil more tuuiid 

 growth, and the erect callous production of the last whorl 

 upou the spire, which is proportionably depressed. The 

 specimen represented at Fig. a is promiscuously waved 

 with dark green broken streaks, clouded with blue and 

 saffron-red ; that at Fig. h, c jn-esents tlie same colouring 

 overlaid with a profusion of rich black-ljrown zigzag 

 streaks. 



Species 21. (Fig. a, h, ]\lus. Steerc.) 

 OlIVA TIiiUIXA. Olir. l,:-il<! ciirnidnnro-nriihi. medio tu- 

 midd. .^Hhiiijlatd, ..i„n! hrrn. uufrnrh' iillii.io ad e.v- 

 In-iiiihiln,, poaliraui upeiiiir.e eallo.w-pnidiido, plicis 

 co/umelluril/its plus mimm occiiUin ; cinerasceide-albd, 

 maculis parvis ceBrulescente-gri.'iei.i profmi mannorald, 

 iuierdiim uigi-o-fusm omtmm inditid, cohimelld ba.ii 

 pallide .wriguineo tiiictd, aperliinr J'aiiee cceridesceiile- 

 alhd. 

 The TiGEii-sPDTTED Olive. Shell cyliudrically-ovate, 

 swollen in the middle, rather inflated, spire short, 

 last whorl callously produced at the posterior end 



of the aperture, eolumellar [ilaits more or less faint ; 

 ashy white, profusely mot I led with small blue-grey 

 spots, sometimes covered entirely with black-brown, 

 columella faintly tinged at the base with a bhish of 

 blood-red, interior of the ajierture bluish-white. 



Lamarck, Anira. sans vert. (Desliaves' edit.) vol. x. 

 p.fi23. 



Hah. iladagascar. 



Distinguished mainly by its swollen growth, being 



uniformly of larger size than the preceding species, and 



by its livid grey aspect of colour, except when altogether 



black -brown, as it not unfrequently is. 



Species 33. (Fig. a, b, Mus. Steere.) 



Oliva tkicoloe. OUv. tesld ri/lindracfo-oblovgd. inter- 

 dniii .fidjangii.dd, spird breviuscidd, pecuUariter callosd, 

 pliei.'i coliniieUaribus basin versus fortiuscidis ; albidd 

 aid. viresce/de, caruleo et croceo-rufo profuse nelndatd, 

 viridi marmoratd et fasciatd, spird nigro oblique tes.iel- 

 latd. 

 TiiK TUI-COLOUKED Olive. Shell cylindrically oblong, 

 sometimes rather narrow, spire rather short, pecu- 

 liarly callous, columellar plaits rather strong towards 

 tlie base ; whitish or greenish, profusely clouded 

 with l)lue and saft'ron-red, marbled and banded with 

 green, spire obliquely tessellated with black, base of 

 the columella tinged with a blush of blood-red, in- 

 terior of the aperture white. 

 Lamakck, .'\nini. sans vert. (Dcsliayes' edit.) vol. x. 

 p. G15. 

 Varietas. O. PIdhudha, Duclos. 

 Ilab. Mauritius. 



The colouring of this species consists of a profuse mot- 

 tling of clouded blue and safl'rou-yellow spots, with, in 

 most specimens, a large proportion of green, showing 

 two bands, one round the middle of the shell, and one 

 beneath the sutures; but the most characteristic feature of 

 the species consists in the spire being obliquely tessellated 

 with black, and a slight mixture of satt'ron-red. 



Septcmbei 



