1. Hydrobia ulvae aperture and operculum. Arrow indicates pointed adapical end of aperture. From salting pool, salinity 22.7p.p.t., Aust, Severn Estuary. Most specimens from this site with sulphide-rich anaerobic mud had extensive black encrustation.
  2. Hydrobia ulvae aperture and operculum. Arrow indicates pointed adapical end of aperture. From salting pool, salinity 22.7p.p.t., Aust, Severn Estuary. Most specimens from this site with sulphide-rich anaerobic mud had extensive black encrustation.

Hydrobia ulvae aperture and operculum. Arrow indicates pointed adapical end of aperture. From salting pool, salinity 22.7p.p.t., Aust, Severn Estuary. Most specimens from this site with sulphide-rich anaerobic mud had extensive black encrustation.

Submitted by Ian Smith on
Species
Hydrobia ulvae
Photographer / copyright holder
I.F. Smith
Browse image
No
Top image
No
Sidebar Image
Yes

 Shell height 4mm with shallow sutures and flat whorls.