NERITA, 



Species 49. (Fig. a, b, Mus. Cuming.) 



Nerita aurantia. Ner. testa semiglobosd, soUdiuscidd, 

 spird parvd, exscrtd, miicniintd, mifractibus convens, 

 spiraliter coiifertim /ini/i\, iiiterstitiis regulariter con- 

 cavis, labro in/iis miilto uicrassato, effuso, niinufe cre- 

 iiulato, dentibus diiobiis lateraUbus, cohtmelld subcon- 

 vexd, subobsolete corriigald, fortiter dentatd ; rufo- 

 auratttld, Uris liic illic niyncante tindatis. 



The orange Nerite. Shell seraiglobose, rather solid, 

 spire small, exserted, sharp-pointed, whorls convex, 

 spirally closely ridged, interstices regularly concave, 

 lip much thickened interiorly, effused, minutely cre- 

 n dated with two lateral teeth, columella slightly 

 convex, rather obsoletely wrinkled, strongly toothed ; 

 reddish-orange, ridges here and there waved with 

 black. 



Kecluz, Petit, Journ. Conch, vol. i. pi. 11. f. 11. 



Hab. Island of Bohol, Philippines ; Cuming. 



Distinguished by its small pointed spire, and very re- 

 gular series of close-set spiral ridges, faintly waved with 

 black upon a rich reddish-orange ground. 



Species 50. (Fig. a, b, Mus. Cuming.) 

 Nerita fdliginata. Ner. tedd ovato-semiglobosd, spira 

 iubexsertd, anfractlbus convexis, spiralUer dense li- 

 neari-siclcatis, columella plano-excavatd, feniie denti- 

 culatd; earned, lineis riifis widulatis confert'm varie- 

 gatd, intense nigro m/diqne pins minus iniininatd. 

 The sooty Nerite. Shell ovately semiglobose, spire 

 rather exserted, whorls convex, spirally densely li- 

 nearly grooved, columella flatly excavated, finely 

 toothed ; flesh-tinged, variegated with waved red lines, 

 close-set, more or less smeared over with inky-black. 

 Ilab. ? 



A peculiarly red-waved shell, almost entirely besmeared 

 with inky-black. 



Species 51. (Fig. a, b, Mus. Cuming.) 

 Nerita fulgurans. Ner. testa globosd, crassd, spird 

 plano-depressd, anfractibus convexis, dense spiraliler 

 Uratis, Uris obsolete cremilatis, interstltiis linearibus, 

 labro intus fortiter crenato, dentibus duobiis laterali- 

 bus utrinqne armato, columelld gramdatd, tenue denti- 

 culatd; carulescente-albd, ccendeo-iiigro profuse un- 

 dato-variegatd. 

 The lightning-marked Nerite. Shell globose, thick, 

 spire flatly depressed, whorls convex, densely spi- 

 rally ridged, ridges obsoletely crenulated, interstices 



linear, lip strongly crenated within, with two lateral 

 teeth on each side, columella granulated, faintly 

 toothed; bluish-white, profusely wave -variegated 

 with blue-black. 

 Gmelin, Syst. Nat. 

 Hab. Honduras (on the rocks) ; Dyson. 



Very characteristic both in sculpture and painting, the 

 whorls Ijeing marked throughout with regular ridges, so 

 close-set, that the interstices between them are merely 

 linear ; the painting consists of a promiscuous splasliing 

 of deep indigo upon a blue-white ground. 



Species 52. (Fig. a, b, Mus. Cuming.) 



Nerita Longii. Ner. testa globosd, solidd, spird sitbex- 

 sertd, anfractibus concavo-deelivibus, deinde convexis, 

 spiraUter Vmeari-sulcatis, interstitiis convexo-planatis, 

 labro intus crenulato, dente valido laterali, columelld 

 verrncoso-corrngatd, dentatd; lutescente-albd, olivaceo- 

 viridi tinctd, pnrpureo-nigro nebulatd et articulatd. 



Long's Nerite. Shell globose, solid, spire slightly ex- 

 serted, whorls concavely slanting at the upper part, 

 then convex, spirally linearly grooved throughout, in- 

 terstices convexly flattened, lip crenulated within, 

 with a strong lateral tooth, columella wart-wrinkled, 

 toothed; yellowish-white, stained with olive-green, 

 clouded and articulated with puqjle-black. 



Recluz, Eevue Zool. Soc. Cuvierienne, 1842, p. 178. 



Hab. Bombay. 



A solid shell, of pale greenish hue, much darkened with 



clouded purple-black articulated blotches. 



Species 53. (Fig. a, b, Mus. Cuming.) 



Nerita Argus. Ner. testd semiglobosd, depressiusculd, 

 spird pland, fere obsoletd, anfractibus angustis, deinde 

 lalioribus, expansis, svperne et inferne lineari-sulcatis, 

 medio lavigatis, columelld plano-concavd, tenne granu- 

 latd, minute denticnlatd ; intense caruleo-nigrd, punc- 

 tis albidis obsolete lentiginosd. 



The Argus Nerite. Shell semiglobose, rather de- 

 pressed, spire flat, almost obsolete, whorls nan'ow, 

 then broader and expanded, above and below linearly 

 grooved, smooth in the middle, columella flatly con- 

 cave, finely granulated, minutely toothed ; dark blue- 

 black, obsoletely speckled with white dots. 



Recluz, Eevue Zool. Soc. Cuvierienne 1841, p. 150. 



Hab. Island of JIasbate, Philippines ; Cuming. Fernando 

 Po, West Africa ; Fraser. 

 The speckling of white dots, which has suggested the 



name of this species, is somewhat indistinctly portrayed. 



August, 1855. 



