180 LOO CHOO MOLLUSKS. 



Umbonium giganteum Less. 



Yaeyama. 122 shells, color variety C ; of color variety D 27 ; of 

 color variety E (ater Pilsbry) 38 ; of color variety F 4 ; of color 

 variety H 4 ; of color variety K (new or not before obtained, sur- 

 face pinkish with brown blotches and clouds) 40 shells. 

 Umbonium superbum Gld. 



Yaeyama. Color varieties. 15 shells. 

 Ethalia guamense Quoy.* 

 Chrysostoma paradozum Born.* 

 Delphinula delphinula Linn6.* Tryon, Man. Vol. 10, p. 266, pi. 67, figs. 1, 2. 



Nago Is. 42 mature shells, no opercula. Native name, Fusa-kabe, 

 bora. 



STOMATIIDJE. 

 Stomatia phymotis Helbling.* Ohon-me Is. 



HALIOTIDJE. 



Haliotis gigantea Chomn. 



Hirame Jiraa Is. 4 large and 1 small shell. 

 Haliotis (Padollus) ovina Chemu.* 



Kobashima Is. 16 large shells, and var., 1 shell. 

 Haliotis (Teinotis) asinina Linn. 



Hirame Jima Is. Native name, Awabi, 110 shells. 



ACMJEIDJE. 



Aomeea sacoharina Linn.* Yaeyama. 



PATELLIDJE. 



Helcioniscus nigrosquamatus Rve.* 



Yaeyama. 58 live shells. Native name, Seuen-gai (may you 

 live a thousand years shell). 



Helcioniscus testudinarius Linn. Yaeyama. 



PELECYPODA. 

 MACTEIDJE. 



Mactra maculata Gmel.* Yaeyama. 



Tresus nuttalli Conr. 



Yaeyama. 2 large, live shells. 



