World Register of Marine Species (WoRMS)
Spectamen exiguum (B. A. Marshall, 1999)
MolluscaBase eds. (2026). MolluscaBase. Spectamen exiguum (B. A. Marshall, 1999). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1424504 on 2026-08-30
Marshall, B. A. (1999). A revision of the Recent Solariellinae (Gastropoda: Trochoidea) of the New Zealand region. The Nautilus. 113 (1): 4-42.