537 



99. Neritina striolata (pi. cxi. f. 98, 99), Recluz, MS. 



N. testa N. lineolaice simili, sed magis globosa, obscurissime 

 longitudinaliter striata; spira magis central!, anfractibus superne 

 minus declivis; columella valide crenulata; testa pallidiore, lineis 

 sparsis, interruptis. 



More globose and less oblique than N. Uneolata (Sp. 97), with 

 the columella more decidedly crenulated. The longitudinal striaj 

 &re scarcely visible to the unassisted eye. The markings are 

 minute, few, and interrupted. 



100. Neritina Gagates (pi. cxii. f. 103, 104), Lam., Sow. 

 Conch. lU., f. 29. > )' > 



N. testa globosa, solida, Isevi, epidermide crassa, nigra induta, 

 sub epidermide angulatim nigro lineata; spira brevissima; aper- 

 tura alba, lata; columella tumida, semilunari, margine vix creimlato. 



Very globose, thick, smooth, covered with a tliick, black epi- 

 dermis, beneath wluch zigzag black markings may be seen. The 

 aperture is wide, white, and the columella swelled, wliite, gene- 

 rally edged with pale orange. The specimen represented (f. 104) 

 with a scarcely-formed epidermis, is in the collection of S. 

 Hanley, Esq. 



Island of Sumatra ; on stones. Cuming. 



101. Neritina Caffra (pi. cxii. f. Ill, 112), Wood, Suppl. 

 pi. viii. f. 10. 



N. testa iV. Oagati simili, sed spira conica, labio externo superne 

 declivo. 



Resembling TV. Gagates (Sp. 100), in some degree. This species 

 has been confounded with it ; but it is much more conical, and 

 the upper part of the outer lip more sloping. 



Mauritius. 



102. Neritina Smithii (pi. cxii. f. 117, 118), Gray, Sow. 

 Couch. Illust. f. 9. N. undata, Beshayes. 



N. testa globoso-subconica, crassa, lavi, alba, maculis et fasciis 

 lineisque longitudinahbus, flexuosis, interruptis picta, epidermide 

 tenui induta ; spii-a conica, anfractibus superne dechvis, inferne 

 rotundatis ; apertura subobliqua ; labio externo intiis incrassato ; 

 columella tumida, fusco tincta, ad marginem denticulata, in medio 

 denticulata. Operculo nigro. 



Of a more or less conical form, with the upper part of the 



