| 1 |   | Favella ehernbergii, --- by Nakamachi, Miwa at Tohoku University | 
| 2 |   | Favella sp., --- by Nakamachi, Miwa at Tohoku University | 
| 3 |   | Favella taraikaenisis, --- by Nakamachi, Miwa at Tohoku University | 
| 4 |   | Undella claparedei, --- by Nakamachi, Miwa at Tohoku University | 
| 5 |   | Undella columbiana, --- by Nakamachi, Miwa at Tohoku University | 
| 6 |   | Xystonella treforti, --- by Nakamachi, Miwa at Tohoku University | 
| 7 |   | Xystonellopsis dahli, --- by Nakamachi, Miwa at Tohoku University | 
| 8 |   | Xystonellopsis gaussi, --- by Nakamachi, Miwa at Tohoku University | 
| 9 |   | Parundella longa, --- by Nakamachi, Miwa at Tohoku University | 
| 10 |   | Epiplocylis calyx, --- by Nakamachi, Miwa at Tohoku University | 
| 11 |   | Epiplocylis undella, --- by Nakamachi, Miwa at Tohoku University | 
| 12 |   | Epiplocyloides reticulata, --- by Nakamachi, Miwa at Tohoku University | 
| 13 |   | Epiplocyloides ralumensis, --- by Nakamachi, Miwa at Tohoku University | 
| 14 |   | Protorhabdonella simplex, --- by Nakamachi, Miwa at Tohoku University | 
| 15 |   | Protorhabdonella striatura, --- by Nakamachi, Miwa at Tohoku University | 
| 16 |   | Rhabdonella amor, --- by Nakamachi, Miwa at Tohoku University | 
| 17 |   | Protorhabdonella apophysata, --- by Nakamachi, Miwa at Tohoku University | 
| 18 |   | Helicostomella subulata (typical form), --- by Nakamachi, Miwa at Tohoku University | 
| 19 |   | H. subulata (variety form), --- by Nakamachi, Miwa at Tohoku University | 
| 20 |   | Metacylis sp., --- by Nakamachi, Miwa at Tohoku University | 
| 21 |   | Metacylis sp., --- by Nakamachi, Miwa at Tohoku University |