NERITA. 



Plate XYI. 



Species 65. (Fig. «, b, Mus. Cuming.) 



Nerita vesillum. Ner. testa ovatd, spird suiexsertd, 

 anfradiLiis rotundatis, jvxta siituram impressis, spi- 

 raliter regtdariter liratis, columelld concavo-pland, 

 acute denticulatd ; fascik latis nigris et luieis ciugii- 

 latd, nigra luteo-pimctato. 



The flag Neeite. Shell ovate, spire rather exserted, 

 whorls rounded, impressed next the suture, spirally 

 regularly ridged, columella concavely flattened, sharply 

 toothed; encircled with broad black and yellow bands, 

 the black yellow-dotted. 



Ha/j. ? 



Encircled in a very characteristic niamier with broad 



black and yellow bands, the black bauds Ijeiug interriiptctl 



with yellow dots. 



Species 66. (Fig. a, It, Mus. Cuming.) 

 Nerit.a NivosA. Ner. testa ovatd, spird subexsertd, an- 

 fractibus jttxta spiram decUvi&us, deinde convexis, spi- 

 raliter impressis et lineari-sulcaiis, siilcis valde irre- 

 gularibtis, labro intns suhincrassato, dente miico la- 

 terali, columelld declivi, obsolete corrugatd, denfafd ; 

 hitense caruleo-viridi, albo sparsim nebulatd. 

 The sxowy Neeite. Shell ovate, spire rather exsertcd, 

 whorls slanting next the spii'e, then convex, spirally 

 ridged and linearly grooved, grooves very irregular, 

 lip slightly thickened inwardly, with a single lateral 

 tooth, columella slanting, obsoletely wrinkled, toothed ; 

 dark blue-green, sparingly clouded with white. 

 Ilab. ? 



A very dark green shell, sparingly and somewhat ob- 

 scurely clouded with white spots or small blotches. 



Species G7. (Fig. (?, A, Mus. Cuming.) 

 Nerita marmorata. Ner. testa orbiculari-depressd, 

 crassiusculd, spird obtuse impressd, anfractibus con- 

 vexis, versus aperturam latis, irregulariter spiraliter 

 liratis et Uneari-sulcatis, aperlnrd e.rpansd, labro ef- 

 fuso, columelld decliri, iiitrr^'r..i i./iii/ite denticulatd; 

 carulesceiite-albd, ccpndeo-nigro sparsim. marmorata. 

 The marbled Nebite. Shell orbicularly depressed, 

 rather thick, spu'e obtusely impressed, whorls con- 

 vex, broad towards the aperture, irregularly spirally 



ridged, and linearly grooved, aperture expanded, 

 lip effused, columella slanting, sometimes minutely 

 toothed ; bluish-white, sparingly mottled with blue- 

 black. 



Hab. ? 



A veiy characteristic broadly expanded species, with 

 the spire impressly flattened, mottled here and there in 

 obscure bands with blue-blaek upon a bluish-white gi'ound. 



Species 68. (Fig. a, b, Mus. Cuming.) 



Nerita acuatina. Ner. testa ovatd, spird subexsertd, 

 anfractibus angustis, convexis, versus aperturam- lati- 

 oribus. iiiipmse lineari-sulcatis, sidcis valde irregula- 

 rib/is. hihro iiiliis lirato, cohmdld declivi, obsolete 

 gniiinhilti, ih'iitutd; carbonario-ttigrd, nitente, -mlcis 

 liiwaribii-i pallidis. 



The agate Nerite. Shell ovate, spire slightly exserted, 

 whorls narrow, convex, broader towards the aperture, 

 impressly linearly grooved, grooves very inegular, lip 

 ridged within, columella slanting, obsoletely gi-anuled, 

 toothed ; coal-black, shining, with the linear grooves 

 pale. 



Hab. ? 



A characteristic shining coal-black shell, encircled at 



very irregular intervals with pale impressed linear grooves. 



Species 69. (Fig. a, b, Mus. Cuming.) 



Nerita Neritopsoides. Ner. testa ovatu-liirhinuta. 

 spird exsertd, mncronatd, anfractibus rotundatis, con- 

 spicue dense spiraliter liratis, labro intiis iiicrussuto, 

 minute crenulato, dente minute laterali, columelld tu- 

 midiusculd, oblique corrugatd, fortiter dentatd; pallide 

 stramincd. 



The Neritopsis-like Nerite. Shell ovately turbinated, 

 spire exserted, pointed, whorls rounded, conspicu- 

 ously closely spirally ridged, lip thickened within, 

 minutely crenulated, with a minute lateral tooth, co- 

 lumella rather swollen, obliquely wrinkled, strongly 

 toothed ; pale straw-colour. 



Hab. ? 



A solid turbinated species, very closely spii-ally ridged, 



of a pale straw-colour, reminding one somewhat of a Neri- 



topsis. 



