Fossils from fhe Upper Musàsbino of Kazusa and Sbimosa. 115 



ed behind, broadly in front. Peristome continuous, thick. Height 

 25 millim. Diameter 2 miUim. A single specimen. 



This is somewhat hke Oyclostrema sulcatum, Watson (Chal- 

 lenger Gastr. , pi. VIII, fig- n) wliich. however, has the umbihcus 

 much larger. 



Fossil occurrence. — Shito. 



Family Slomatellidae. 



Genus STO.'^IATELI.A, Lamarck. 



171. Sfomafella lyrata, Pilsbry. 

 PI. VI. Fig. 2. 

 Stomatella lyrata. Pilsbry in Tryon's Man. Conch., XII., p. 12, i^l. 2, figs. 3-5. 

 Catalogue, p. 104, 

 A depressed-globose shell with a short spire and three convex, 

 rapidly growing whorls. The sculpture consists of distant spiral 

 threads with interspaces latticed by oblique raised striœ. 



Only three specimens, the largest measuring 6 miUim. in 

 height and 8.5 millim. in diameter. 

 Fossil occurrence. — Otake, Tega. 

 Living. ^Northern, Central and Western Japan. 



Family FlssurelUdae. 



Genus MACROSCHSS^HA, Swainson. 



:172. Macrosehistna sinensis, A. Adams, rrw. brevis, Yokoyama. 



PI. VI. Fig. 3. 



Shell oblong with the length a Httle less than twice the 

 breadth. Lateral margins straight (or very slightly concave), 

 parallel. Anterior margin rounded, posterior also in general round- 

 ed, but truncated in its middle portion. Anterior slope somewhat 

 convex and a httle longer than half the length of the sheU. Lateral 

 slopes straight and flat. Posterior slope very short, a trifle longer 

 than the eroded portion behind the hole, broad and shallowly ex- 

 ■cavated like a gutter. Hole wedge-shaped with nearly straight 



