OF CONCHOLOGY. 



179 



Faune malacologique terrestre et jluviatih des lies Viti, 

 d'aprh les envois de 31. le Dr. Edouard Grceffe. By 

 Albert Mousson. 



This is the fourth memoir on the above subject by Prof. 

 Mousson. The following are the new species and varieties : 



OyclopJiorus (Ostodes) diatretus, Gould, var. intercostata, Mous- 

 son. 



Diplommat'ma Pomaticeformis, 3Ielania Samoensis, Reeve. 



subregiilaris, 

 "■ Grodeffj'ojjana, 



" ascendens, 



" tuber osa, 



" 3Iartensi, il. Ad. 



" var. macrostoma, 



"■ quadrata, 



" fuseifia, 



Realia ingens, 

 " eostidata, 

 " circumlineata, 

 " subsohita, 

 " long Ilia, 

 " bifilaris., Mousson. 

 var. angustata, 

 Hydrocena brevissima, 

 Truncatella furricula, 

 " fimiculus, 



Helicina fulgora, Gld. 

 var. expansa, 

 " tectiformis, 

 " interna, 

 " Semper i, 

 " musiva, Gld. 

 var. Vitiana, 

 var. subearinata, 

 Melania pUcatilis, 



" plutonis, Hinds, 

 var. callosa, 



var. exposita, 

 " Ovalana, Mousson. 



" 31. perpinguis, Gld, 



" non Hinds. 



var. pUcato costata, 

 var. Kanatldana^ 

 " subexiista, 



var. persuleata, 

 var. albizonata, 

 " Assavaensis, Mousson. 



" var. desideata, 



" Terpsichore, Gld. 



var. 3fangoensis, 

 " turritelloides, 

 " teirica, Gld. 



var. tumida, Mousson. 

 Neritina Pritchardi, Dohrn. 

 var Vitiana, 

 " cornuta, Reeve. 



var. Pacifica, 

 " frondosa, 

 " olivacea, Le Guillou. 



var. Vitiana, 

 " Garretti, 



" deltoidea,Ga.rYctt,MS. 

 Navicella Schmeltziana. 



" Freycineti, Recluz. 

 var. Vitiensis, 



Diagnosis 3Iollusci novi, reipublicce 3Iexieana^ incoloi. By 

 H. Crosse and P. Fischer. 



Zonites Tuxtlensis. 



Description d'un Athoracophorus inedit j^^ovenant de la 

 Nouvelle Oaledonie. By H. Crosse and P. Fischer. 



