176 LOO CHOO MOLLUSKS. 



TRUNCATELLID^. 

 Truncatella valida Pfr. Yaeyama* 



HIPPONYCID^. 

 Hipponyx australis Quoy.* 



NATICID^. 



Natica sagraiana Linn. (var.). Tryon, Man. Vol. 8, p. 11), pi. 3, fig. near fig. 45. 



Yaeyama. 19 shells, mostly small. 

 Natica vitellus Linn. Tryon, Man. Vol. 8, p. 29, pi. 8, fig. 60. 



Yaeyama. The figure does not fairly represent this species. 5 

 live shells, 30 mm. long x 27 mm. 

 Natica oMnensis Lam. Tryon, Man. Vol. 8, p. 20, pi. 3, fig. 53. 



Yaeyama. 40 shells, mostly young. 

 Natica adamsiana Dkr. (var.). Tryon, Man. Vol. 8, p. 27. 



Yaeyama. Larger and unlike in coloring the typical figure 46, 

 pi. 8. Light olivaceous brown ; 6 banded in different shades. 

 Length 37 ram. by 29 ram. width, 8 shells, live and with opercula, 

 28 dead, without. 



Polynices (Mamma) dubia Reel. (var.). Tryon, Man. Vol. 8, p. 47, pi. 16, very 

 near fig. 60. 



Kobashiraa. 10 fine live shells, various stages of growth, without 

 opercula. 



Polynices (Mamma) mamilla Linn. Tryon, Man. Vol. 8, p. 49, pi. 16, fig. 46. 



Yaeyaraa. 4 shells. 

 Polynices (Mamma) aurantia Lam. 



Yaeyama. Sraall, light yellow variety. The callus and umbili- 

 cus like fig. 40, pi. 15, Tryon, Man. Vol. 8, p. 42. 110 fine live 

 shells 29 mra.x22mra., with opercula; a beautiful and distinct 

 variety. 

 Polynices (Mamilla) melanostoma Gml. Tryon, Man. Vol. 8, p. 50, pi. 21, fig. 14. 



Yona-Guni Is. 17 live shells, the largest 45 ram. x 33 rara. 

 Polynices fiemingianus Reel.* 

 Sigaretus planulatus Reel. Tryon, Man. Vol. 8, p. 58, pi, 25, figs. 75-77. 



Yaeyama. 1 live shell. 



lANTHINIDJE, 

 lanthina communis Lam.''- 



