Fossils froui the Upper Musashiiiu of Kaznsa and Shimosa. ß3 



lud. Moll., p. 05. Smith, Proe. Zool. Soc. Loud., 1879, p. 210, pi. XX, fig. 44. 

 Pilsbry, Catalogne, p. 40. 



This well known shell is quite frequent, especially at Otake. 

 The two specimens collected at Shito, one of which is represented 

 in the above figure, is more slender than usual, with the end of the 

 aperture more contracted and narrower. Tlie transverse ridges on 

 the inner side of the outer lip is also obsolete in one of them. 



Fossil occurrence. — Otake, Shisui, Tega, Kamenari, Shito. 

 Also Tabata and Shinagawa in Musashi. Lower Musashino of 

 Miyata and Yokosuka. 



Living. — Northern, Central and Western Jnpan. 



Family WluricidSß. 



Genus TKOPHON, Montfort. 



71. Ti-oi»/ton pdehfjt'hitplie, (Smith.) 



PI. III. Fig. 1. 



Troplwu jmchyrhaphe. Pilsbry, Catalogue, p. 40. Duuker, lud. Moll., p. 10. 

 Coralliophila pachyrhaphe. Tryou, Man. Couch. ^ II, p. 209, pi. 70, figs. 441, 442. 

 FusKS 2jaGhyrhaj)he. Smith, Proc. Zool. Soc. Loudou, 1879, p. 205, pi. XX, figs. 37, 

 37a. Kobelt, Mart. u. Cliem. Syst. Couche Cab., p. 202, figs. 10, 11. 



A single example. The shell is fusiform with about eight 

 shouldered whorls which are flat and sloping above the shoulder 

 and vertical below it. The sculpture consists of longitudinal ribs 

 and spiral cords. The ribs on the penultimate whorl are nine in 

 number, coarse, and rounded, while they are more or less' flattened 

 on the bod^^-whorl. The spiral cords are close together and alter- 

 nately large and small. Incremental lines scaly on crossing the 

 cords. Aperture obovate. C)uter lip crenate at margin and 

 furnished within with a few faint transverse striae which do not 

 attain the margin. Canal short, bent somewhat sideward as well 

 as backward. Height 19 millim. Diameter 9 millim. 



Fossil occurrence. — Tega. 



Living. — Western Japan. 



