1 ART. 20. — ]\r. YOKOYAMA. 



3. Peniacrliius ariahensis n. sp. 



4. Terebratula miUcensis ii: sp. 



5. Perna Nishiyamai n. sp. 



6. Pholodomya margarilacea (Sow.) 



7. Crassatella fusca n. sp. 



8. Vejiericardia nipponica ii. sp. 



9. Cardita mandaica n. sp. 



10. Venus Mitsuiana n. sp. 



11. Fusus sp. 



12. Ataria ziczac (Sow.) 



13. Homolops'.s japonicits n. sp. 



14. Xanthilites penlagonalis n. sp. 



15. Lamna cf cusjndata Ag. 



These fifteen fossils arranged according to tlieir depths or 



horizons are as follows : — 



240 feet Terebratula miikensis. 



