NERITA. 



Species 30. ("Fig. «, h, Mus. Cuming.) 



Nerita rE.EcoGNiTA. Ner. testa mihglobosd, spird vix 

 exsertd, anfractibtis dense spiralller costatk, coslis 

 crenulatu, labro iiitits subinerassato, lirato, columella 

 suiexcavatd, gramiUs perpauck, margine deiitatd ; al- 

 hidd,fiilco et nigra prof use maculatd, apice lii/esccu/e. 



Tut. known Neeite. Shell subglobose, spire scarcely 

 cxserted, whorls closely spirally ribbed, ribs creiiu- 

 Inted, lip a little thickened inwardly, ridged, colu- 

 mella rather excavated, with a few granules, toothed 

 at the edge ; whitish, profusely spotted with black 

 and fulvous, apex yellowish. 



(.'. B. Adams, MS. JIus. Cuming. 



//„/,. ? 



A very characteristic species, densely sculptured with 

 spiral crenulated ribs, mottled throughout with black and 

 fulvous-rust, the apex being of a yellowish tinge. 



Species 31. (Fig. a, b, Mus. Cuming.) 

 Nerita scalpta. Ner. testd globosd, solidiusciild, spird 

 mbexsertd, anfractibtis lavibus, lineis impressis subdis- 

 tnniibns spiraliter incisis, labro intus lirato, columelld 

 granulatd, margine teniie denlatd ; nigra, lineis im- 

 pressis albidis, area columellari pallidissime lutes- 

 rente. 

 TuK SCEATCHED Nerite. Shell globose, rather solid, 

 spire somewhat exserted, whorls smooth, spirally en- 

 graved with rather distant impressed lines, lip ridged 

 within, columella granulated, finely toothed at the 

 edge ; black, impressed lines whitish, coluraellar area 

 faintly yellowish. 

 I[„l,, ? 



.\ coal-black shell, well distinguished by its rather dis- 

 iant impressed whitish lines. 



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

 .Vf.rita chloeostoma. Ner. testa subtrigono-globosd, 

 crassiusculd, spird concavo-impressd, anfractibus for- 

 titer spiraliter costatis, costis rotundatis, interstitiis 

 excavatis, interdum lira parvd intercurrente, labro in- 

 tus fortiter lirato, columelld concavd, profuse granu- 

 latd, margine tenue bidentatd ; fulm-alhidd, coslis 

 nigro tessellatis, ared columellari lufescente. 

 The yellow-modtu Nerite. Shell somewhat trian- 

 gularly globose, rather thick, spire concavely im- 

 pressed, whorls strongly spirally ribbed, ribs rounded, 



interstices excavated, sometimes with a small ridge 

 running between, lip strongly ridged within, colu- 

 mella concave, profusely granuled, finely two-toothed 

 at the edge ; fulvous-white, ribs tessellated with 

 white, columellar area yellowish. 



Lamarck, Anim. sans vert. vol. viii. p. 603. 



Ilab. Philippine Islands ; Cuming. 



Distinguished by the roundness of the ribs and hollowed 



interstices, and by the thickly-set granules of the columella. 



Species 33. (Fig. «, b, Mus. Cuming.) 



Nerita Geayana. Ner. testa ocato-globosd, spird snh- 

 exserld, anfractibus subangustis, spiraliter finiinilato- 

 liratis, liris suhtiliter crenulatis, labro intus subcre- 

 nulato, colmnelld tenue corrugatd, margine denticu- 

 latd; cinereo-grised, liris nigricantibus hie illic albi- 

 punctatis. 



Gray's Nerite. Shell ovately globose, spire a little ex- 

 serted, whorls rather naiTow, spirally corded with 

 ridges, ridges finely crenulated, lip faintly crenulated 

 within, columella finely wrinkled, finely toothed at 

 the ridge ; ash-grey, ridges black, here and there 

 white-dotted. 



Recluz, Eevue Zool. Soc. Cuvierienne, 1843, p. 200. 



Hub. Province of Ilocos, Island of Luzon, Philippines ; 



A dark grey species, spirally sculptured with black 

 cord-like ridges articulated here and there with white 

 dots. 



Species 34. (Fig. a, b, Mus. Cuming.) 

 Nerita haustkum. Ner. testd ovato-globosd, spird vix 

 e.vsertd, anfractibus lemter liueari-sulcatis, labro intus 

 lirato, colunielld concavo-planatd, margine obsolete 

 denticulatd ; olivaceo-nigrd, lutescente-aJbo hie illic 

 iuterruptd, columelld pallidissime roseo-tiucid. 

 The scoop Nerite. Shell ovately globose, spire scarcely 

 exserted, whorls faintly linearly grooved, lip in- 

 wardly ridged, coliuuella concavely flattened, obso- 

 letely toothed at the edge; olive-black, here and 

 there interrupted with yeUowish-whitc, columella 

 faintly tinged with rose. 

 Hab. Eed Sea. 



Distinguished by a rather contracted hollowed aperture, 

 the outer surface of the shell being olive-black, opening 

 out here and there on a yellowish-white ground. 



AuKUst, 1855. 



