Corbula ? globosa Tamura
1959e. Corbula globosa Tamura, p. 114, pl. 12, figs. 1-4.-1960c. Corbula globosa Tamura: Tamura, p. 290.-1960d. Corbula globosa Tamura: Tamura, p. 242.
Type. —Holotype (UMUT MM3093) from Sakamoto, Sakamoto, Kumamoto Pref.
Age and distribution. —Upper Jurassic-Berriasian. Torinosu group in Sakamoto, Tanoura, Sakawa and Sakuradani areas. Soma group (Nakanosawa and Koyamada formations) in Soma area.

Corbula? imamurae Hase
1960. Corbula (?) imamurae Hase, p. 324, pl. 37, figs. 16-21, pl, 39, figs. 2-4.
Type. —Holotype (IGSH HA271) from Ohata, Utsui, Yamaguchi Pref.
Age and distribution. —Lower Cretaceous (precisely unknown). Toyonishi group (Yoshimo formation) in Shimonoseki area.

Pulsidis higoensis (Matsumoto)
1938. Aloidis (Caryocorbula) higoensis Matsumoto, p. 19, text-fig. 9, pl. 2, fig. 8.-1964. Pulsidis higoensis (Matsumoto): Ota, p. 153, pl. 21, figs. 13-17.-1966. Pulsidis higoensis (Matsumoto): Hayami, p. 156.-1972. Pulsidis higoensis (Matsumoto): Shikama and Suzuki, pl. 6, figs. 13, 14.
Type. —Lectotype designated by Ota (1964, p. 153) (UMUT MM7755) from Kawauchida, Mifune, Kumamoto Pref.
Age and distribution. —Aptian-Cenomanian. Mifune group in Mifune area, Gosyonoura group in Gosyonoura island, Yatsushiro formation in Yatsushiro area, and Choshi formation in Choshi area.

Pulsidis nagatoensis Ota [Pl. 10, Fig. 9]
1964. Pulsidis nagatoensis Ota, p. 150, pl. 20, figs. 1-14, 25.
Type. —Holotype (GF Y6301) from Yoshimo, Shimonoseki, Yamaguchi Pref.
Age and distribution. —Neocomian. Toyonishi group (Yoshimo formation) in Shimonoseki area.

Explanation of Plate 10 Fig. 1. Izumicardia parva Ichikawa and Maeda: type-species of genus Izumicardia. Holotype (OCU MM286), rubber cast from right external mould, × 2. Loc. Mikumayama, Sumoto (Campanian, Izumi group). Reproduced from Ichikawa and Maeda, 1963, pl. 9, fig. Id. Fig. 2. The same species. Topotype (OCU MM291), rubber cast from right internal mould, × 2. Loc. ditto. Reproduced from Ichikawa and Maeda, 1963, pl. 9, fig. 7a. Fig. 3. Clisocolus (Crenocolus) crenulatus Ichikawa and Maeda: type-species of subgenus Crenocolus. Holotype (OMM F1025), right valve, ×1. Loc. Azenotani, Izumi mountains (Campanian, Izumi group). Reproduced from Ichikawa and Maeda, 1966, pl. 7, figs. 1a-c. 3a: external view, 3b: internal view, 3c: upper view. Fig. 4. Izumia trapezoidalis Ichikawa and Maeda; type-species of genus Izumia, Topotype (OCU MM276), clay cast from left internal mould, × 3. Loc. Mikumayama, Sumoto (Campanian, Izumi group). Reproduced from Ichikawa and Maeda, 1963, pl. 10, fig. 8b. Fig. 5. The same species. Holotype (OCU MM262), right internal mould, × 2. Loc. ditto. Reproduced from Ichikawa and Maeda, 1963, pl. 10, fig. 1a. × Fig. 6. The same species. Topotype (OCU MM337), clay cast from right internal mould, × 3. Loc. ditto. Reproduced from Ichikawa and Maeda, 1963, pl. 10, fig. 7b. Fig. 7. Eoursivivas matsumotoi (Hase): type-species of genus Eoursivivas. Right internal mould (GF K63050), × 2. Loc. Sakayori-agaru, Yatsushiro (Neocomian, Kawaguchi formation). Reproduced from Ota, 1964, pl. 21, fig. 1. Fig. 8. The same species. Left internal mould (GF K63061), ×1.8. Loc. ditto. Reproduced from Ota, 1964, pl. 21, fig. 3. Fig. 9. Pulsidis nagatoensis Ota: type-species of genus Pulsidis, Holotype (GF Y6301), right internal mould, × 2.5. Loc. Yoshimo, Shimonoseki (Neocomian, Yoshimo formation). Fig. 10. Nipponicorbula mifunensis Ota: type-species of genus Nipponicorbula. Paratype (GF M63002), right valve, × 3. Loc. Asanoyabu, Kamimasuki (Cenomanian or Turonian, Mifune group). Reproduced from Ota, 1964, pl. 21, fig. 19. Fig. 11. Praecaprotina yaegashii (Yehara): type-species of genus Praecaprotina. Syntype (IGPS not registered), bivalved specimen, ×1. Loc. Moshi, Iwaizumi (Aptian, Miyako group). Reproduced from Yabe and Nagao, 1926, pl. 7, fig. 1.

Pulsidis okadai Ota
1964. Pulsidis okadai Ota, p. 152, pl. 20, figs. 15-24.
Type. —Holotype (GF M6365) from Kawachida, Masuki, Kumamoto Pref.
Age and distribution. —Cenomanian-Turonian. Mifune group (lower part) in Mifune area.

Eoursivivas matsumotoi (Hase) [Pl. 10, Figs. 7, 8]
1960. Corbula matsumotoi Hase, p. 322, pl. 39, figs. 5-21.-1964. Eoursivivas matsumotoi (Hase): Ota, p. 156, pl. 21, figs. 1-11.
Type. —Holotype (GK H6084) from Sakayorikami, Kawamata, Kumamoto Pref.
Age and distribution. —Neocomian. Kawaguchi formation in Kawamata and Tanoura areas, and Toyonishi group in Shimonoseki area.

Nipponicorbula mifunensis Ota [Pl. 10, Fig. 10]
1964. Nipponicorbula mifunensis Ota, p. 158, pl. 21, figs. 18-27.
Type. —Holotype (GF M63001) from Asanoyabu, Mifune, Kumamoto Pref.
Age and distribution. —Cenomanian-Turonian. Mifune group (lower part) in Mifune area.

Panopea (Myopsis) plicata (Sowerby)
1926. Panopaea aff. gurgitis (Brongniart): Yabe, Nagao and Shimizu, p. 55, pl. 12, figs.10, 15, 19, 20.-1934. Panope sp. aff. gurgitis (Brongniart): Nagao, p. 231, pl. 31, figs. 10, 14.-1957b. Panopea (?) sp.: Amano, p. 106, pl. 2, fig. 12.-1966. Panopea (Myopsis) plicata (Sowerby): Hayami, p. 153, pl. 22, figs. 1-7.
Age and distribution. —Upper Neocomian-Aptian. Miyako group (Hiraiga formation) in Tanohata area, Ishido formation in Sanchu area, and Lower Monobegawa group (Hagino formation) in Monobegawa area. This species is known in western Europe and Trinidad.
Remarks. —The Japanese specimens of P. (M.) plicata are generally more or less shorter than typical specimens from western Europe, though specific distinction seems unnecessary.

Panopea (Myopsis) nagaoi Hayami
1966. Panopea (Myopsis) nagaoi Hayami, p. 155, pl. 22, fig. 8.
Type. —Holotype (GK H6545) from Kohara, Toyo, Kumamoto Pref.
Age and distribution. —Upper Neocomian-Albian. Yatsushiro formation in Sakamoto area and Arita formation in Yuasa area.

Teredo ? matsushimaensis Hatai
1951, Teredo matsushimaensis Hatai, p. 30, pl. 5, figs. 1-5-1966. "Teredo" matsushimaensis Hatai: Hayami, p. 172, pl. 26, figs. 6, 7, 9 (? non fig. 8).-1969. Teredo matsushimaensis Hatai: Hatai, Kotaka and Noda, p. 35, pl. 1, figs. 12-14.
Type. —Lectotype designated by Hayami (1966, p. 173) (IGPS no. 73697) from Matsushima of Moshi, Iwaizumi, Iwate Pref.
Age and distribution. —Aptian. Miyako group (Tanohata and Hiraiga formations) in Omoto and Tanohata areas.