L I V A . 



Plate XI. 



^ipccies 17. (Fig. «, h, Mus. C 



()liv.\ SPLEXDIDIJL.\. 0!h\ lesfd i-ijlimb-aceo-ohlonf/u, 

 spird brniuscidd, apice elato, plicis columellaribus sub- 

 distantibits ; cinereo-albicanie, frmcik duahus, alterd 

 supra nifdiidii, altffd baml'i, niiiriilis /rii/iu/i.sfiiticis re- 

 ficii/n/is, ci)/,/ii/,ihi, fiiM-inri',,/ I, it, r>.liliis: fHscu-iih/m 

 ■yiarsi/i/ piii/c/a/is id uuicidatix, njiicr baxhiiir piirparm- 

 v'wlacds, apeiinriFjauce lulfscentu-ulbd. 



The splendid (3lite. Shell cyliudrically oblong, spire 

 rather short, apex raised, columellar plaits rather 

 distant ; ash-white, encircled with two bands, com- 

 posed of triangular reticidated brown spots, one above 

 the middle, the other basal, interstices between the 

 bands sprinkled with blacli-brown spots and blotches, 

 base and apex pnrple-violet, interior of the apertnre 

 yellowish-white. 



SowEKBY, Tankerville Catalogue, App. p. o2. 



Ilab. Island of Tobago, Bay of Panama (in sandy mud at 

 low water) ; Cuming. 



This fine species belongs to the same type as the pre- 

 ceding, 0. reticulata. It is distinguished by a peculiarity 

 of marking, which is constant in all specimens, consisting 

 of two broad confused brown bands, of which the inter- 

 stices are sprinkled with curved linear dots and triangular 

 blotches. The spire is short and rounded, with the apex 

 raised, which, together with the base of the columella, is 

 tinged with purple-violet. 



Species 18. (ilus. Cuming.) 



Oliva literata. Ol'w. testa eloni/ald, spird exscrtd, pli- 

 cis coliimellaribm iiderdnm suboccultis ; palUdii spa- 

 diced, littesceiite partini tiiictd, relicidd fused sidiampld, 

 acute trigond, bifasciatim disposiid, hie iUic c/turacie- 

 ribiis castaneis inscriptd, ornald, colmnelld alba, aper- 

 turtpfauce vivid!: viohiccd. 



The lettered Olive. Shell elongated, spire exserted. 



eolumellar plaits sometimes rather concealed ; light 

 fawn-colour, partially tinged with yellow, ornamented 

 with a rather large brown net-work, sharply trian- 

 gular, disposed so as to show two bands, marked here 

 and there with chestnut characters, columella white, 

 interior of the a])erture deep violet. 



Lamahck, Anim. sans vert. (Deshayes' edit.) vol. x. p. 614. 



Ilab. West Indies. 



Belonging also to the type of 0. retici/lata, to which 

 species it more closely approximates than 0. spleudidula. 

 In form it is peculiarly elongated, the net-work is of rather 

 a large flame-pattern, showing two bands, whicli are 

 marked here and there with dark characters. The aper- 

 ture is characterized by a deep tinge of violet. 



Species 19. (Mus. Cuming.) 



()li\ A CujiINGii. Oliv. testa ci/Undraceo-oblongd, postice 

 t/nuidd, rotimdatd, spird brevi, apice subexserto, acuta, 

 plicis columellaribus planulatis, suboccultis, columella 

 basi tuiuidd ; aurantio-croced, castaneo et niijricante- 

 fiiscn, iiiiMacululo, varie fasciald, colmnelld basi livido- 

 purpurascenfe pallide tinctd, a/pertur/g fauce c/rruks- 

 cente-ulbd. 



Cuming's Olive. Shell cylindricaUy oblong, swollen pos- 

 teriorly, rounded, spire short, apex rather exserted, 

 sharp, columellar plaits flattened, almost concealed, 

 columella swollen at the base ; orange-saft'ron colour, 

 variously banded with unspotted chestnut and black- 

 ish-brown, base of the columella faintly tinged with 

 livid-purple, interior of the aperture bluish-white. 



Hab. Gulf of CaUforuia ; Donnet. 



This appears to be very distinct fi'om any species 

 yet described, and is remarkable for the absence of any 

 pattern of marking in the painting, which is of a warm 

 orange-saffron hue, simply cross-banded. 



September, 1850. 



