541 



should be placed ; but with the columellar hp not at all tumid, 

 the spire more produced, and having a much stronger excavation 

 near the suture. 



114. Neritina Guinerii (pi. cxvi. f. 272), Recluz, MS. 



N. testa, transverse subovali, solida, nigra, transverse striata ; 

 spira depressa, apice planulato ; apertura, magna, flavida ; labio 

 interno planulato, minute dentato ; labio externo subexpanso. 



Rather solid, black, transversely striated, of an oval form, with 

 depressed spire, and should come near N. Mario (Sp. 24). The 

 aperture is yellow, with the inner lip fiat, the outer lip rather 

 expanded. 



115. Neritina lugubris (pi. cxvi. f. 271), Ph'dippi, Abbil- 

 dungen, 1 band, 2 lief., p. 20. Neritina, pi. 1. f. 9. 



N. testa transverse subovali, nigra, lsevi ; spira depressa, apice 

 piano ; apertura magna, cserulea ; labio interno leevi, planulato ; 

 labio externo subexpanso. 



Less solid than N. Guinerii (Sp. 114), and should be placed 

 with it near N. Morio (Sp. 24). The aperture is blue, with the 

 inner lip quite flat and smooth, and the outer Hp expanded and 

 slightly angular near the lower edge; the external surface is 

 smooth and black. 



Sandwich Islands. P/dlippi. 



116. Neritina solidissima (pi. cxvi. f. 273), Sowerby,junr., 

 Pro. Zool. Soc, 1849. 



N. testa subglobosa, solida, nigra, transverse striata ; spira 

 depressa, apice planulato; apertura magna, alba; labio interno 

 planulato, margine recto, dentato ; labio externo superne et interne 

 expanso, subangulato, intus incrassato. 



This species presents the idea of N. cariosa (Sp. 3), in an early 

 stage of growth before the full expansion of the outer lip ; it is, 

 however, a much more solid shell ; the inner lip is flat, and the 

 outer lip thickened within. 



