56 



Leglt H. Cuming in arena interdum a mari inundata, 

 ad insulas Polynesias (Lord Hood's Island). 

 Proceedings. 1832. p. 201. 



9. Neritina morio G. B. Sowerhi/. 



N. testa subovali, transversim striata, atra; apertura 

 pallescente; columella superne emarginata, in medio den- 

 ticulata. - 



Long. 0-7 poll, lat. 0-75. 



Legit H. Cuming in mari ad insulas Polynesias (Du- 

 cie's and Easter Islands). 



Proceedings. 1832. p. 201. 



25. NERITA Linn. (peloronta Oken.) 

 1. Nerita intermedia G. P, Deshayes. 



N. testa ovata, subtus plana, dorso convexa;'spira bre- 

 vissima, in margine postico incumbente; apertura incras- 

 sata; semilunari, minima; labro acuto, margine sinistro te- 

 nuissime denticulato, croceo, late calioso. 



Mensura desideratur. 



Species accedens ad neritinam Lam. et navicellamLam. 



Legit Cb. Belanger rupibus adbaerentem in littoribus 

 3Ialabaricis. 



Belanger voyage, zoologie. p. 420. et pl. I. fig. 6. 7. 



XXFI. LEPTOCONCHUS B. RUppell. 



Testa tenuis, peilucida, subglobosa, spira deprcssa, sub- 

 obsoleta, apertura magna, subovali, extremitatibus in con- 

 trarium versis, marginibus haud cpalitis, dextro tenui an- 

 tice subexpanso; columella nulla, umbilico nullo, antice 

 iruncata, contorta. — Animal probpscide elongato, retractili; 

 tentaculis duobus, complanatis, trigonis, intcrne ad basin 

 coalitis, externe in medio oculos gerentibus; pede medio- 

 cri, operculo nullo; pallio ad marginem circulari, haud ap- 

 pendiculato, ad latus sinistrum subproducto; foramine bran- 

 chiali submagno. 



