| Reference no. | Higo, S., P. Callomon and Y. Goto, 1999 |
| Ecosystem | Temperate Northern Pacific |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Type locality, Nagasaki prefecture (holotype of Homalopoma laevigatum) (Ref. 75835). Known from off Kōchi prefecture, off western Kyūshū and east China Sea (Ref. 75835). C: Ref. 75835; O: Ref. 75835. |