NERITA. 



Plate II. 



Species 5. (Mus. Cuming.) 



Nerita antiquata. Ner. testa globosd, soUdd, compactd, 

 spird plano-depressd, anfractUnis rotundatis, coiicen- 

 trice dense lirato-striatis, aperturd intus iucrassatd, 

 obsok'te serratd, ared colmnellari leviter comgatd, 

 bideiidatd ; griseo-albd, palllde nigricantc varie nebu- 

 losd et lenfiginosd, colmnelld viteUind. 



The antiquated Nerite. Shell globose, solid, compact, 

 spii-e flatly depressed, whorls rounded, concentrically 

 closely ridge-striated, aperture thickened inwardly, 

 obsoletely serrated, columellar area faintly wrinkled, 

 two-toothed ; greyish-white, variously clouded and 

 freckled with pale black, columella yelk-yellow. 



Eecluz, Eevue Zool. Soc. Cuvierieune, 18H, p. 106. 



Hab. Philippine Islands ; Cuming. 



A particularly rounded solid shell, compressed towards 

 the spire, sculptured throughout with close-set concentric 

 ridge-like striae, with a characteristic yelk -yellow stain 

 across the toothed edge of the columella. 



Species 6. (Mus. Cuming.) 



Nerita costata. Ner. testd globosd, solidd, spird ob- 

 tuse planatd, spiraliter costatd, costis rotundatis, re- 

 gularibus, interstitiis nitide excavatis, aperturd iu- 

 crassatd, fortiter serratd et dentatd, ared colmnellari 

 convexd, corrugatd, fortiter dentatd; costis conspicne 

 carbonario-nigris, interstitiis fulvis, ared coluntellari 

 miperne luteo tinctd. 



The ribbed Nerite. Shell globose, solid, spire ob- 

 tusely flattened, spirally ribbed, ribs rounded, re- 

 gular, the interstices neatly excavated, aperture thick- 

 ened, strongly serrated and toothed, columellar area 

 convex, wrinkled, strongly toothed ; ribs conspicu- 

 ously coal-black, interstices yellowish, columellar area 

 stained with yellow at the upper part. 



Chemnitz, Conch. Cab. vol. v. p. 299. pi. 191. f. 1906, 

 1967. 



Hab. Island of Nicobar. 



A compressly rounded solid shell, conspicuously dis- 

 tinguished by its bold symmetrical coal-black ribs, yel- 

 lowish in the interstices. 



[ Species 7. (Mus. Cuming.) 



I Nerita Deshayesii. Ner. testa globoso - turbinata, 

 cra.'isd, spird subexsertd, anfractibus superne subde- 

 clivibiis, deihde rotundatis, spiraliter costatis, costis 

 t.eHuibus, Humerosis, valde irregularibns, siibserratis, 

 aperturd incrassatd, obscure serratd, dentatd, ared 

 cohnni-Uari promiscue corriigutd, rudissime fortiter 

 lU'ittaid : hiii'Hccute-alhd, ccenileo-nigro sparsim im- 

 diitd, cohiiuelld inter denies viieUind. 

 Deshayes' Nerite. Shell globosely turbinated, thick, 

 spii-e rather exserted, whorls rather slanting at the 

 upper part, then rounded, spirally ribbed, ribs thin, 

 numerous, very irregular, subserrated, aperture thick- 

 ened, faintly serrated, toothed, columellar area pro- 

 I miscuously wrinkled, very rudely strongly toothed ; 



I yellowish -white, sparingly waved with blue-black, 



columella yelk-yellow between the teeth. 

 I Recluz, Eevue Zool. Soc. Cuvierienne, 1841, p. 101-. 

 i Ilab. Panama. 



Closely allied to N. ornata, from the same locality, but 

 distinguished slightly and characteristically from that spe- 

 cies in all particulars. It is turbinated, with the spire less 

 exserted ; the ribs are narrower and more irregular, and 

 serrated ; the colouring is waved, and the teeth are much 

 more rudely developed. 



Species 8. (Mus. Cuming.) 



Nerita peloronta. Ner. testa oblongo-globosd, spird 

 subexsertd, anfractibus superne coucavo-declivibus, 

 (1,'inde rotiindis, spiraliter costatis, costis mediocribus, 

 conferlis, aperturd intus incrassatd, vix serratd, ared 

 colmnellari concavo-excamtd, subirregulariter dentatd; 

 Intescente-albd, nigra et roseo varie flexuose maciilatd, 

 ared colmnellari et inter denies sanguineo tinctd. 



The bleeding-tooth Nerite. Shell oblong-globose, 

 spire somewhat exserted, whorls concavely slanting 

 at the upper part, then rounded, spirally ribbed, ribs 

 middling, close-set, aperture thickened inwardly, 

 scarcely serrated, columellar area concavely exca- 

 vated, somewhat iiTegularly toothed; yellowish- 

 white, variously flexuously spotted with black and 

 crimson, columellar area and between the teeth blood- 

 stained. 



LiNN.EUs, Syst. Nat. (10th edit.), p. 778. 



