N E R ITI N A. 



Plat:. XIV. 



Species 64. (Fig. a, b, Mus. Cuming.) 



Neritina avellana. Ner. tesld globo-w, solidd, spird 

 vix ex-tertd, obtiisd, atifradibits rotimdiito-aiigulatix, 

 medio snbplanalis, area columellari marghie dense scr- 

 ruhdd ; paUkle oUvaceo-cinered, ptmctis albidis nic/ro- 

 umbratis profuse aspersd. 



The nut Neuitixa. Shell globose, solid, spire exsertcd, 

 obtuse, whorls rotunilately angled, rather flattened 

 rouud the middle, columella densely serrulated at 

 the edge ; pale olive-horny, profusely sprinkled with 

 whitish black-shaded dots. 



Recluz, Zool. Soc. Cuvierienne, 184i, p. 76. 



Ilab. Philippine Islands. 



Of a peculiarlv blunt solid structure, resembling a com- 



Spccies 65. (Fig. a, h, Mus. Cuming.) 



Neuitixa faba. Ner. testd globoso-couoklm, soVuld, spird 

 uribjiromiiiitld, plus minus erosd, anfraclihus siiperni' 

 concavis,Jkxuose pUcalo-striatis, deinde convex is, Uevi- 

 bus, art'd columellari ahrupte declivi ; nif/ricunte-oli- 

 vaced, lutescenfe-albo promiscue slrigatd et piiiiclald, 

 inicnlum fasciatd, fascid vioide sanguiaeo tenue reii- 

 culutd. 



The beax Neritixa. Shell globosely conoid, solid, 

 spire rather prominent, more or less eroded, whorls 

 convex, flexuously plicately striated, then convex, 

 smooth, columella abruptly slanting; blackish-olive, 

 promiscuously sti'eakcd and dotted with yellowish- 

 white, sometimes banded, the band finely reticulated 

 with bright blood-red. 



SowEURY, Conch. Illustrations, f. lU. 



J lab. ? 



Extremely variable in painting, but of a uniform solid 

 globosely conoid form. 



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

 Neritina interrupta. Ner. testd globoso-couoided, so- 

 lidd, spird snbobtmd, plerumipie erosd, anfractibiis 

 coHcavo-declivibus, deinde co)ivexis, Jlexuoso-striatis, 

 area columellari declici ; olivaceo-virescente, subtil iter 

 oblique alho-lineatd, fascid luted latiusculd peculiari- 

 ter obliqui' ciiigulatd. 



TiiE ixrEni:i-"TED Neiutixa. Shell globosely conoid, 

 solid, spire rather nlMuse, generally eroded, whorls 

 eoncavely slanting, then convex, flexuously striated, 

 columellar area slanting; olive-green, finely oblin^uely 

 white-lined, peculiarly obliquely encircled with a ra- 

 ther broad yellow band. 



Recluz, MS. Sowerb}', Thesaurus Conch, part 10. p. 526. 



JIab. Island of Luzon, Philippines (on stones in a rapid 

 river) ; Cuming. 

 This species is remarkable for having the apex generally 



much eroded. 



Species 07. (Fig. a, b, :Mus. Cuming.) 



Neritixa c.elata. Ner. iestd ovato-globosd, solidd, spird 

 pared, obtusd, noil exsertd, ai/fractibus superne plauo- 

 drrlifib/is,/j('rutiariterJle.vHo.io-impresso-striatis, deinde 

 rill II lid, I In, ai-i'd ciiluiiifllari e.vcavafo-declivi; carbo- 

 iiariu-alrii, liueis Jlrxuosis pallide ferrugineis. 



The exguaved Neritixa. Shell ovately globose, solid, 

 spire small, obtuse, not exserted, whorls flatly slant- 

 ing, pceuliarJy flexuously impressly striated, then 

 rouuderl, columellar area cxeavately slanting; coal- 

 black, flexuous lines pale rust. 



PiECLUz, MS., Sowerby, Thesaurus Conch, part 10. f. 538. 



IM. South Sea Islands. 



An obtusely conoid species, sculptured with impressed 



strife running flexuously from the apex. 



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



Neritina tritonensis. Ner. testd globoso-conoided, so- 

 lidd, -ipird 2>lits minus erosd, anfractibus superne con- 

 caco-declivibus, deinde rotundatis, area columellari 

 subangustd ; lutescente, nigro-oliraceo dense sabtiliter 

 reliculatd. 



The TRITON Neritina. Shell globosely conoid, solid, 

 spire more or less eroded, whoils eoncavely slanting 

 round the upper part, then rounded, columellar area 

 rather narrow ; yellowish, densely finely reticulated 

 with black-olive." 



Le Guillou, Eevue Zool. Soc. Cuvierienne, 1841, p. 345. 



Ilab. North Australia. 



Very densely reticulatrd ivith dai'k ol. 

 around. 



a yellowish 



November, 1855. 



