Family: Cristatellidae
En art registrert i Norge. De individene som overvintrer (statoblaster) er alle av den frittdrivende typen (floatoblaster).
Systematics :
| Kingdom | Animals (Animalia) | |||||
| Phylum | Bryozoans (Bryozoa) | |||||
| Klasse | Phylactolaemata | |||||
| Family | Cristatellidae | |||||
| Genus | Cristatella | |||||
| Species | Gelémosdyr (Cristatella mucedo) | |||||
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