Description: This bryozoan consists of branching fans similar to Bugulina species. Under the microscope each zooid has 2-3 spines on the distal outer corner and 1-2 on the distal inner corner. These spines are often broken. Unlike Cradoscrupocellaria it has no scutum. Vibracula occur on the basal surface and there are two in each fork of the branches. The lateral avicularia are large, frontal avicularia small and only present in brood chambers. Brood chambers are almost spherical, often with a droplet-shaped window to the inside of the twig.

Key Identification Features:

• No scutum
• Two vibraculae in each branch fork
• Triangular avicularia at sides of branches, spaced with feeding zooids.

Distribution Map from NBN: Scrupocellaria scruposa at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Scrupocellaria scruposa at iNaturalist World Species Observations database.

GBIF data for Scrupocellaria scruposa

WoRMS: Scrupocellaria scruposa at World Register of Marine Species. Accepted name: Scrupocellaria scruposa (Linnaeus, 1758). AphiaID: 111250.

Classification: Biota; Animalia; Bryozoa; Gymnolaemata; Cheilostomatida; Flustrina; Buguloidea; Candidae; Scrupocellaria