NATICA. 



Plate XI. 



Species 43. (Mus. Cumiug.) 

 Natica phytelephas. Nat. testa peranyuste profunde 

 umbllicatd, globosd, solidiusculd, spird parvd, apice 

 distittcfo, anfractibus lievibus, vel mitmte decussatim 

 striatis, snperne leviter concavis, deinde plano-rotun- 

 datis, aperturd spmihinnri, coliimelld caUosd, callosi- 

 tate umb'dkiuii paiiim huplfnte ; fiilvfSceHte-albd, tmh- 

 opacd. 

 The ivory-nut Natica. Shell very narrowly deeply 

 umbilicated, globose, rather solid, spire small, apex 

 distinct, whorls smooth, or minutely decussately stri- 

 ated, slightly concave at the upper part, then flatly 

 rounded, aperture semilunar, columella callous, cal- 

 losity partially filling the umbilicus ; yellowish-white, 

 rather opake. 

 Hab. Australia. 



A solid, globose, dead-white shell, rather coiicavcly flat- 

 tened round the upper part of the whorls. 



Species 43. (Mus. Cumiug.) 

 Natica septentrionalis. Nat. tedd obtecte umbilicatd, 

 globosd, tenui, injlatd, sjiird sube.rsei'td, anfractibus ro- 

 tniidutis, inhuite di'ciis.satiii/ alridHs, cpiji'i-iiiidr triini 

 fnlrd hidiild, aperturd subp,jnj<,,;.ii-un,l,:, o,hnnrll,i 

 tciiukidd, callositute alba piin-iilii vuihilh-iiui i„i- 

 plfitte. 

 The northern Natica. Shell with a small covered 

 umbilicus, globose, thin, inflated, spire subexscrted, 

 whorls rounded, minutely decussately striated, co- 

 vered with a thin fulvous epidermis, aperture siib- 

 pyriformly ovate, columella rather thin, with a rather 

 small white callosity filling up the umbilicus. 

 Beck, Cat. Moll. 

 Rob. Greenland. 



A light inflated species o( JwpidlarinAike form, covered 

 with a very characteristic close, thin, horny-yellowish epi- 

 dermis. 



Species 44. (Mus. Cuming.) 



Natica Draparnaudi. Nat. testa spiraliter tmbUicatd, 

 depresso-globosd, iieritoided, crassd, ponderosd, .spird 

 parvd, callosd, laterali, anfractibus Ixcigatis, iiitciili- 

 bus, snperne leviter coiicavo-impressii, aperturd semi- 

 lunari, columella dense callosd, mnbilico spiraliter an- 

 gulato, callositate intrante ; vivide viiellino-auranlid, 

 mnbilico et callositate all/is. 



Draparnaud's Natica. Shell spirally umbilieated, de- 

 pressly globose, neritoid, thick, heavy, spire small, 

 callous, lateral, whorls smooth, shining, slightly con- 



cavely impressed round the upper part, aperture se- 

 milunar, columella thickly callous, umbilicus spirally 

 angled, with callosity entering; bright yellowisli- 

 orange, umbilicus and callosity white. 

 Recluz, Petit, Jouru. Conch, vol. ii. p. 198. pi. 5. f. 11. 

 Ilab. Isle of Bacleon, Philippines. 



A brilliant yellowish-orange neritoid shell, with a pecu- 

 liar white-angled umbilicus. 



Species 45. (Mus. Cuming.) 



Natica Philippiana. Nat. testd obtecte umbilicatd, de- 

 presso-globosd, spird pluHO-convexd, vix elevald, an- 

 fractibus concexo-declicibus, deinde rotundatis, Iccri- 

 gafi-1, puli/is, aperturd pyriformi-ovatd, Itorizunlali. 

 coluiiii'lld callositate densd rotundutd ; fidco-cincrrit, 

 spird aurunlio-nifd, callositate et aperlnra fauci- aia- 

 taiieo-rujis. 



PniLippi's Natica. Shell with a covered umbilicus, 

 depressly globose, spire flatly convex, scarcely raised, 

 whorls convexly slanting, then rounded, smooth, pu- 

 lished, aperture pyriformly ovate, horizontal, eolii- 

 mella with a thick rounded callosity ; fulvous-asli, 

 spire orange-red, callosity and interior of the aperture 

 chestnut-brown. 



PiECLUz, MS., jMus. Cuming. 



Hab. Alexandria, Mediterranean. 



A highly polished reddish-ash shell, distinguished fruni 



N. glaucina by its more solid umbilical callosity. 



Species 4G. (Mus. Cumiug.) 



Natica globosa. Nat. testd profundi; uuibilirald. glo- 

 bosd, .^pird parvd, anfractibus Irccibiis, uut miuutissiuii 

 decussatim striatis, supenie dcclivibus, driudc rourt.i-i\, 

 aperturd semilunari, columelld parum culhrnl ; albii, 

 apice lirido-nigricante, fasciis talk dilute lidcuci-i'; 

 cingulatd. 



The globose Natica. Shell deeply umlnlicated, glo- 

 bose, spire small, whorls smooth, or very minutely 

 decussately striated, slanting at the upper part, then 

 convex, aperture semilunar, columella but little cal- 

 lous; white, apex livid black, encircled with broad 

 diluted blood-red bands. 



Chemnitz, Conch. Cab. vol. v. p. :3(J7. pi. 1^^. pi- l^-"'- 

 1897. 



Natica helvacea, Lamarck. 

 Natica spadicea, car., Dilhvyn. 



Hab. Singapore (in sandy mud at six fathoms) ; Cumiug. 

 A globose shell, encircled with broad diluted lawn-red 



bands, leaving the white ground uiost distinct ur\t flit- 



suture. 



April, 185.-: 



