Cryptodromia tumida| Stimpson, 1858d: 240. -- de Man, 1902a: 688. -- Stimpson, 1907: 175. -- Ihle, 1913: 37, figs 10-17. -- Parisi, 1915a: 104. -- Balss, 1922b: 107. -- Urita, 1926a: 1. -- Montgomery, 1931: 413, pl. 29, figs 4, 4a. -- Sakai, 1965b: 8, pl. 3, fig. 3. -- Kim, 1973: 276, 607, fig. 78, pl. 74, fig. 50. -- Takeda, 1973d: 79. -- Takeda & Hayashi, 1973: 69, fig. 1. -- Yamaguchi et al., 1976: 34. -- Kim & Chang, 1985: 44. -- McLay, 1993: 199(key). -- Maclay, 2001: 840.
Cryptodromia tumida typica| Sakai, 1936c: 18, text fig. 4a-b, pl. 7, fig. 1. -- Sakai, 1976a: 13, fig. 4a-c. -- Muraoka, 1998: 14.
Cryptodromia fallax (not Lamarck, 1818)| Ng et al., 2000a: 159, fig. 1d.
Non Cryptodromia tumida -- Ortmann, 1892: 544.
= Cryptodromia fukuii (Sakai, 1935).
Iso-kaikamuri [Japanese]