NERITA. 



Species 44. (Pig. n, b, Mus. Cuming.) 



Nerita signata. Ner. tesid dejn-esw-semiglobosd, sjiini 

 sitliexsertd, sed impressd, anfractibus superiie coiicnrii-, 

 deinde convexis, spiraliter costatis et strlalis, costis 

 striisqne nodidatis et tetme crenulatis, aperturd sub- 

 expansd, columella plano-excavatd, verrucoso-corni- 

 gatd, tentte denticulatd ; ceerulesceiite-albd, costis stri- 

 isqne caruleo-ni(ji-o et fidoo-roseo temdler articulafis, 

 ared colmnellari sangvineo-iinctd. 



The makked Nerite. Shell depressly semiglobose, spire 

 a little exserted but impressed, whorls concave round 

 the upper part, then convex, spirally ribbed and stri- 

 ated, ribs and striiE noduled and finely crenulateil, 

 aperture rather expanded, columella flatly excavated, 

 wart-wrinkled, finely toothed ; bluish-white, ribs and 

 stria3 finely articulated with blue-black and fulvous- 

 rose, coluraellar area blood-stained. 



Macleay, Lamarck, Anim. saus vert. vol. vii. p. (ilO. 



Hab. New Holland ; Macleay. Island of Jlasbate, I'hi- 

 lippines; Cuming. 



A very beautifully sculptured and prettily painted ^w- 

 cies, with a deep blood-stain on the columellar area. 



Fig-. 45. (Mus. Cuming.) 



This shell, from the IMauritius, proves to be a variety 

 of N. bisecta from West Africa, described at Plate Vlll. 

 Sp. 39, without the bright yellow columella which distiu- 

 ffuishes that variety. 



Species 46. (Fig. a, b, Mus. Cuming.) 

 Nerita oryzarum. Ner. tesid globosd, solidiuscidd, spird 

 obtmd, paruni exsertd, anfractibus convexis, interdiim 

 leviter liratis, interdum retuse costatis, labro iiitu.t iii- 

 crassato, et lirato, columella corrugatd et grnnulald, 

 tentte denticulatd; nigricante-olivaced, macidis albin 

 subdistantibus pecidiariier variegatd et tessellatd. 

 The rice-marked Nerite. Shell globose, rather solid, 

 spire obtuse, but little exserted, whorls convex, some- 

 times faintly ridged, and sometimes bluntly ribbed, 

 lip thickened inwardly and ridged, columella wrinkled 

 and granuled, faintly toothed ; blackish-olive, pecu- 

 liarly mottled and tessellated with distant white 

 spots. 



Recluz, Eevue Zool. Soc. Cuvierienne, 1841, p. 178. 

 llab. Bombay and Slalacca. 



Of this characteristic white-mottled species, Mr. Cuming 

 possesses a ribbed variety from Malacca, and a variety in 

 which the ribs are almost obsolete from Bombay. 



Species 47. (Fig. a, b, Mus. Cuming.) 

 Nerita oleagina. Ner. testd ovato-globosd, spird ex- 

 sertd, miicronntd, anfractibus convexis, spiraliter ele- 

 vato-striatis, labro iiitus incrassato, vix crennlato, 

 deute miico laterali, columelld couvexiusculd, promk- 

 cue verrucoso-corrtigatd, fortiter denlatd ; nigricante- 

 olivaced, interdum nigro-fastiatd, maculis albidis mi- 

 daiis nigro-umbratis oblique variegatd. 

 The olive Nerite. Shell ovately globose, spire ex- 

 serted, pointed, whorls convex, spirally elevately 

 striated, lip thickened inwardly, scarcely crenulated, 

 with a single lateral tooth, columella rather convex, 

 promiscuously wart - wrinkled, strongly toothed ; 

 blackish-olive, sometimes banded with black, ob- 

 liquely mottled with black-shaded waved white spots. 

 Hub. "? 



Slightly resembling the preceding species in its peculiar 

 style of painting, but distinct in form and sculpture. 



Species 48. (Fig. a, b, Mus. Cuming.) 

 Nerita filosa. Ner. testd globoso-turbinatd, spird ex- 

 sertd, iiiiicronatd, anfractibus superne decliribiis, deinde 

 convexis, /iris minute bi^ectis spiraliter filosis, labro 

 inl/fs incrassato, minute crenulato, dente laterali acuta 

 utrinque arniato, columelld Iwvigatd, denticulatd ; fer- 

 rngineo-spadiced, liris eximie ceBruleo-nigricantibus. 

 The threaded Nerite. Shell globosely turbinated, 

 spire exserted, sharp-pointed, whorls slanting at the 

 upper part, then convex, spirally threaded with mi- 

 nutely divided ridges, lip inwardly thickened, mi- 

 nutely crenulated, with a sharp lateral tooth on each 

 side, columella smooth, finely toothed ; rusty fawn- 

 colour, ridges delicately blue-black. 



Ihb. ? 



An extremely delicate and neatly sculptured species, 

 being encircled with dark thread-like ribs, which are 

 nevertheless minutely bisected by a groove, upon a rust- 

 fawn ground. 



