NERITINA. 



Species 54. (Fig. a, I, Mus. Cuming.) 



Nekitina lineolata. Ner. teatCi conico-ylohom, fioUdd, 

 spird obtusd, mifractibns plano-decUvibm, debule (jih- 

 bosis, area colmtwllari subangndd, callosd ; oUvaceo- 

 liited, Unek nigris conferlis midutk oblique strigatd. 



The li.veolate Neritina. Shell coiiically globose, 

 solid, s]iire obtuse, whorls flatly slanting round the 

 upper part, then gibbous, columellar area rather nar- 

 row, callous; olive-yellow, obliquely streaked with 

 close-set waves of black lines. 



Lamarck, Anini. sans vert. vol. viii. p. 57-t, 



//„/,. ? 



This shell answers to Lamarck's description of the 

 above-named species, but not to the figures referred to by 

 him in Chemnitz and in the ' Encyclope'die jMcthodiquc,' 

 which, auain, difler materially from each other. 



Species 55. (Fig. a, b, Mus. Cuming.) 



Nekitina sereulata. Ner. tedd depresso-globosd, spird 

 parvd, pariiM exsertd, anfractibus cotwexU, lavibiis, 

 area columeUari plano-decUvi, margine serrulatd ; oli- 

 vaceo-nigrd, hikscente-albo promiscue punctata. 



The finely serrated Neritina. Shell depressly glo- 

 bose, spire small, but little exserted, whorls convex, 

 smooth, columellar area flatly slanting, finely seiTatcd 

 at the edge ; olive-black, promiscuously dotted with 

 yellowish-white. 



Eecluz, MS. Mas. Cuming, Sowerby, Thesaurus Conch. 

 part 10. p..") 18. ^ '* 



Jlab. Cape Palmas, Sumatra (on stones in a river); Cuming. 

 A depressly ovate, somewhat tumid shell, dotted in a 



very promiscuous manner with yellowish-white upon a 



dark olive-black ground. 



Species 56. (Fig. a, b, Mus. Cuming.) 



Neritina squamosa. Ner. testa glohom-ttirbinatd, eras- 



siusculd, spird obtuse exsertd, anfractibus convexis, ua- 



diqiie peculiariter verrucoso-sqitamosis, ared columel- 



lari plano-declivi ; fidvo et olivaceo obscure faseiatd. 



The scaly Neritina. Shell globosely turbinated, rather 



thick, spire obtusely exserted, whorls convex, eveiy- 

 where peculiarly wart-scaled, columellar area flatly 

 slanting, obscurely banded with fidvous-olive. 

 Recluz, MS. Mus. Cuming, Sowerby, Thesaurus Conch. 



part 10. p. 527. 

 Ilab. Isle of Ncgros, Philippines (on stones in a mountain 

 stream) ; Cumiug. 

 Sculptured throughout with a peculiar wart-like sha- 

 green coating. 



Species 57. (Fig. n, b, Mus. Cuming.) 

 Nekitina auumbkata. Ner. tesid depresso-glotmsu, spird 

 parM, aciimiiiaiti, anfractibus convexis, tmnidinsculk, 

 Icecibns, ared columelluri plano-declici ; olivaced, 

 pimclis minutis albis nigro-umbratk aspersd, ared co- 

 Imnellari superne iniense sanguined. 

 The shaded Neritina. Shell depressly globose, spin- 

 small, acuminated, whorls convex, rather swollen, 

 smooth, columellar area flatly slanting ; olive, sprin- 

 kled with minute black-shaded white dots, columellar 

 area deep blood-stained at the upper margin. 

 nab. Solomon's Island. 



Distinguished by a profuse sprinkling of white dots, 

 shaded on the anterior side with black, and by the upper 

 margin of the columellar area being deeply blood-stained. 



Species 58. (Fig. a, b, JIus. Cuming.) 



Neritina Sandalina. Ner. testd globosd, solidd, spird 

 fix exsertd, retusd, anfractibus supierne leviter concaois, 

 flexuoso-pllcntis, deinde convexk, ared columellari sub- 

 excacato-declivi, margine arcuatd; olioaceo-nigrd. 



The Sandal Bay Neritina. Shell globose, solid, spire 

 scarcely exserted, blunt, whorls slightly concave 

 round the upper part, flexuously pleated, then con- 

 vex, columellar area slightly excavately slanting, 

 arched at the margin ; olive-black. 



Eecluz, Eevue Zool. Soc. Cuvierieune, 1843, p. 76. 



Ilab. Sandal Bay. 



A blunt rudely pleated species, of a uniform olive-black 



colour. 



November, 1855. 



