L I V A . 



Plate XXIII. 



Species 01. (Fig. n, A, Mus. Steere.) 

 Oliv.v semistri.\t.a.. OUv. testa acununato-ovalu, sjiini 

 f.rsi'i'td, hiisi hite cffusu, Irmicufd, anfractiis iilt'iud 

 ihnuiVm fifiniico concentric}, im'iso-strifito, striis crelier- 

 rimis, interclum nhfioh'tis, coIumeUa arcuald, depressd, 

 /»,s! uLsolr/c nmpUcatd; (jrkn.-phuJjnl :nnd hit mid 

 niiijHxtd ciiignliitd, spird aiHoKd, iil/jidd. sntiirh casta- 

 neo-liiKinici^, colamelld tjaHiqiic allii.s, ajii'ftiirrc faiice 

 inteuse cuHtaneo-hrnnned. 

 The half-stri.^ted Olive Slicll iicumiiiatcly ovate, 

 spire exserted, base broadly effused, truncated, pos- 

 terior half of the last whorl concentrically deeply 

 striated, striw close-set, sometimes obsolete, colu- 

 mella arched, depressed, obsoletely one-plaited at the 

 base ; greyish lead-colour, encircled with a narrow 

 yellowish zone, spire callous, whitish, sutures chest- 

 nut-brown, base and columella white, interior of the 

 aperture dark chestnut-brown. 

 Gk.ay, Zool. Beechcy's Voyage, p. 130. pi. 3(). f. 10. 

 Hab. Salango, West Columbia ; Cuming. 



This species is well characterized by the upper or pos- 

 terior portion of the last whorl being very closely concen- 

 trically grooved «ith stria', which in the precetliug 

 whorls become obliterated by the flow of enamel from the 

 aperture. 



The locality of 0. xcinhtrlata is not given in Beeeliry's 

 Voyage. The species was observed at Salango, by Mr. 

 Cuming, moving about by hundreds with great rapidity 

 in the wet sand. 



Species 63. (Mus. Steere.) 



Oliva coli'MELLAeis. OVw. teatd acuminato-omfd, de- 

 pressd, spird /jreviuscidd, acittd, basi late effiisd, triiit- 

 catd, colmnelld nsqm ad spiram crasse callosd, basi 

 obsolete unipUcatd ; Cfcridesceide-plumbed, luteo-allddo 

 bizonatd, colmiielld albd, apertwrcc fauce inteiise cas- 

 taneo-brnnned. 



The columellar Olive. Shell acuminately ovate, de- 

 pressed, spire rather short, sharp, base broadly effused, 

 truncated, columella thickly callons all along to the 

 spire, obsoletely one-plaited at the base ; bluish lead- 

 colour, two-zoned with yeUowish-white, columella 

 white, interior of the aperture dark chestnut-brown. 



SowEKBY, Tankerville Catalogue, .Vpp. p. o.5. 



llab. I'ayta, Peru (in tine sand at low water) ; Cuming. 



Remarkably distinguished by a very copious deposit ol' 

 enamel along the columella on to the spire. 



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



Oliv.a lineoLata. OVw. testa acumlnato-oblonija, crassd, 

 spird valde exsertd, callosd, colnmelld urcttatd, bail 

 snbobscm-e mnltiplicatd et contortd ; spadicco-albd, 

 lineolis fiiscis infra sntnras stricjatd et reticidatd, basi 

 immactdatd, columelld et apcrtnne fauce intense vdola- 

 ceo-purpureis. 



The LINE-NETTED Olive. Shell acuminately oblong, 

 thick, spire much exserted, callous, columella arched, 

 somewhat obscurely mauy-plaitcd and twisted at the 

 base ; fawn-white, streaked and reticulated beneath 

 the sutm-es with brown Uues, base unspotted, colu- 

 mella and interior of the aperture deep violet-purple. 



GliAY, AVood's Index Testaceologieus, Supp. pi. 5. f. 37. 

 Olica dama, Duclos. 



Hab. California. 



The net-work of 

 lies from the suturi 

 lell are well distil 

 .louring. 



3 species descends in rather long 

 The eulumeUa and interior of the 

 =hed bv their rich violet-liui-plc 



Species (')i. (Fig. a, Mus. Steere ; Fig. /;. 

 Mus. Cuming.) 



Oliva MVL.v. Olie. testd acmninato-oblungd, crassd, ^pird 

 caldi} e.csrrtd, callosd, columelld ob^r i< -./■ '.'/ ■"/('', 

 siiperne callosd ; lutescente-albd, luj. ■ ,s 

 pnrpureo eximit: jironiiscne reticulata, _/.'s. ' - /. • ■•■Sd 

 medio pullidiore, basi immaculald, cuiuineild et aper- 

 turfC fauce albis. 



The snowy Olive. Shell acuminately oblong, thick, 

 spu-e much exserted, callous, columella obscurely 

 many-plaited, callons at the upper part ; yellowish- 

 white, delicately promiscuously reticulated beneath 

 the sutures with rose-purple, the reticulated band 

 being paler in the middle, base unspotted, columella 

 ami interior of the ajierture wliite. 



rolnta nirca, Gmeliu, Syst. Nat. p. 3442. 

 tilira eburnea, Lamarck. 



