Bing found the following results
Chrysallida pellucida - Observation.org
File:Naturalis Biodiversity Center - RMNH.MOL.230766 1
| Nederlands Soortenregister
Spiralina spiralis (Montagu, 1803) - World Register of Marine Species
Macrobenthos of the North Sea - Mollusca: Dichotomous key: …
Macrobenthos of the North Sea - Mollusca
WoRMS - World Register of Marine Species - Spiralinella spiralis ...
Macrobenthos of the North Sea - Mollusca
Chrysallida pellucida - sealifebase2021.fisheries.ubc.ca
File:Naturalis Biodiversity Center - ZMA.MOLL.366670 - Chrysallida ...