| Arachnidium | |
|---|---|
| Scientific classification  | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Bryozoa | 
| Class: | Gymnolaemata | 
| Order: | Ctenostomatida | 
| Family: | Arachnidiidae | 
| Genus: | Arachnidium | 
| Species | |
| A. fibrosum Hincks, 1880[1] | |
Arachnidium are a genus of colonial ctenostome bryozoans. They lack a calcified cuticle and form dense encrusting colonies on barnacles or other shelled organisms. Individual zooids are roughly 150 microns in size, have a lophophore with about 13 tentacles, and have about 10 to 11 connections to other zooids in the colony.[1]
References
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