_ 23 — 
Trochomorpha Lüdersi Pfr, 
— Eurydice Gould. 
Partula subgonochila Mousson. 
Pupa pedienlus Shuttl. 
Stenogyra juncea Gould. 
— novemgyrata Mousson. | 
Tornatellina eonica Mousson. | 
— baeillaris Mousson. 
Succinea modesta Gould. 
Physa sinuata Gould. | 
— Tongana Quoy. 
Auricula elongata Parr. 
Cassidula erassiuscula Mousson, 
Pythia tortuosa Mousson. 
Melampus avenaceus Mousson. 
— ornatus Mousson. 
— Tongaensis Mousson. 
Helieina interna Mousson. 
— Ueana Mousson. 
— musiva Gld. 
18) Von den Samoa-Inseln 
Helicina fulgora Gld. 
— culminans Mousson. 
Omphalotropis zebriolatus Mouss. 
— perforatus Mousson. 
— eonoideus Mousson. 
— Moussoni: Pease. 
— parvus Mousson. 
— vallatus Gld. 
— bifilaris Mousson. 
— biliratus Mousson. 
Hydrocena parvula Mousson. 
Truncatella Vitiana Gld. 
— rustica Mousson. 
— Futunaensis Mousson. 
-— cristata Crosse. 
Melania ovalana Mousson. 
— Jutosa Gld. 
— vainafa Gld. 
— pluviatilis Mousson, 
— acutispira Mousson. 
zählt Mousson (Journ. Conch. 
XVII. 1869 p. 323) folgende Arten auf: 
Microeystis perpolita Mousson. 
— upolensis Mouss. 
Gastrodonta ensifera Mousson. 
Trochonanina Schmeltziana Mouss. 
Hyalina Samo@nsis Mousson. 
Patula hystricelloides Mousson. 
— Graeffei Mousson. 
— complementaria Mousson. 
— gradata Gld. 
Trochomorpha Troilus Gld. 
?— luteo-cornea Pfr. 
?— Samoa Pfr. 
?— navigatorum Pfr. 
— tuber Mousson. 
— tentoriolum Gld. 
— subtrochiformis Mousson. 
— Cressida Gld. 
Partula canalis Mousson, 
Partula coniea Gld. 
— Recluziana Petit. 
— zebrina Gld. 
— abbreviata Mousson. 
Stenogyra juncea Gld. 
Pupa pediculus Shuttl. 
Tornatellina conica Mousson. 
Suceinea putamen Gld. 
— crocata Gld. 
— modesta Gld. 
Cassidula erassiuscula Mousson, 
Pythia Savaiensis Mousson. 
Melampus luteus Quoy. 
— semisuleatus Mousson. 
— fasciatus Desh. 
— Philippii Küster. 
— castaneus Mühl!. 
Ostodes tiara Gld, 
