NATICA. 



Plate III. 



Species 8. (Mus. Cuming.) 



Natica glaucina. Nat. testa, depresw-globosd, siiHus e.v- 

 cuvatd, (uiipliter muhUicatS., callou'dute crami, spirali, 

 spird obtiisd, anfmctibiis rotmidatia, pnrtim leeviliiis, 

 nitentihus, partim oblique striatis, apcrtiird parviun- 

 c/tld, semilunar i ; carneo-cinered, spadieed infra su- 

 turam, callo et apertura fauce purpurascente iiiictis. 



The glaucine Natica. Shell depressly globose, exca- 

 vated beneath, largely umbilicated, with a thick, 

 spiral callosity, spire obtuse, whorls rounded, partly 

 smooth and shiniug, partly obliquely striated, aper- 

 ture rather small, semilunar; flesh-tiuged ash, bufl' 

 beneath the suture, callosity and interior of the aper- 

 ture tinged with purple. 



Lamarck, Anim. sans vert. vol. viii. p. 62.5. 

 Nerita glancina, Linnaeus. 



Hab. Mediterranean. 



This shell, inhabiting the Mediterranean, is, M. Des- 



haycs thinks, the recent analogue of the fossil N. olhi of 



M. Marcel de Serres. 



Species 9. (Mus. Cuming.) 



Xatica spadicea. Nat. testd profundi urMUmld, (jlo- 

 bosd, spird brevi, aufractibus rotundatis, juxta. sutu- 

 ram concavo-depressis et pUcato-striatis, apertiird lu- 

 nari-ovatd, ampld, suhiffusd, cohmieUd callositate spi- 

 rali mediocri ; albidd, fasciis casta/ico-fuscis diluiis 

 cingulatd, epidermide tenui indutd. 



The fawn Natica. Shell deeply umbilicated, globose, 

 spire short, whorls rounded, concavely depressed and 

 plicately striated next the suture, aperture lunar-ovate, 

 large, somewhat eft'used, columella with a moderate 

 spiral callosity ; whitish, encircled with chestnut-fawn 

 dilated bands, covered with a thin epidermis. 



Gmelin, Syst. Nat. 13th ed. 



Hab. Singapore (iu sandy mud at a depth of six fathoms) ; 

 Cuming. 

 A fine, elegantly spiral species, encircled with broad, 



undefined, diluted chestnut-fawn bands. 



Species 10. (Mus. Cuming.) 



Natica fllx'TUAta. Nal. testd iviperforatd, subrjlobosd, 

 spird brevissimd, apice acutd, aufractibus teiiuissinti 

 striatis, ultimo peramjdo, oblique effuso, aperturd am- 

 pld, patidd, cohimclld dense encaustd; palUde spa- 

 diced, striffis albidis fluctuatis nolatd, columella ebur- 

 iied, intense castaneo marginatd. 



The waved Natica. Shell imperforated, subgiobose, 

 spire very short, sharp at the apex, whorls very finely 

 striated, the last very large, obliquely effused, aper- 

 ture large, open, columella densely enamelled ; light 

 fawn, marked with waved white streaks, columella 

 ivory-white, edged with deep chestnut. 



SowERBY, Tankerville Catalogue, Appendix, p. 12. 



Hab. Island of Mindoro, Philippines ; Cuming. 



This fine Natica is distinguished from all other species 



of the genus by its obliquely effused form, waved and 



chestnut-stained colouring, and absence of umbilicus. 



Species 11. (ilus. Cuming.) 

 Xatica Panamaensis. Nat. testd subanguste umbilicatd, 

 ovato-globosd, subventricosd, subponderosd, spird brevi, 

 apice acutd, anfructibus superne conve.vis, medio declivi- 

 depressis, ad basin snbexpansis, minntissime decttssatim 

 striatis, apertiird oblongo-semilimari, columella callosd; 

 eburued, epidermide temdssimd indutd. 

 The Panama Natica. Shell rather narrowly umbili- 

 cated, ovately-globose, slightly ventricose, rather 

 heavy, spire short, sharp at the apex, whorls convex 

 at the upper part, slantingly depressed in the middle, 

 rather expanded round the base, very minutely de- 

 cussately striated, aperture oblong-semilunar, colu- 

 mella callous ; ivory-white, covered with a very thin 

 epidermis. 

 Pecluz, Pro. Zool. Soc. 181.3, p. 208. 

 llab. Bay of Panama (in fine sand at ten fathoms) ; Cuming. 

 A rounded species, of very pure white substance, pecu- 

 liarly slantingly depressed round the middle, and densely 

 encircled with very minute stria;. 



April, 1855, 



