Aulacomya Mörch 1853

New Zealand, Wellington, Hutt Co., Eastbourne, intertidal; on and among rocks and stones, collected 1st March 1995, ex coll. A.F. de Jong. Image by Joop Trausel and Frans Slieker

shell, left valve, outer view

general. Specimen ID: 3402940. Field no.: CHO2. Taxon rep.: Aulacomya tra. Image quality: 2. Aspect ratio: 1.68.

shell, left valve, inner view

shell, right valve, inner view

shell, right valve, outer view

Dry specimen. Ventral view.

Ribbed mussel 70mm long

Dry specimen. Dorsal view.

Ribbed mussel 70mm long

Found washed up on the beach.

Found washed up on the beach.

Found washed up on the beach.

For scale, the ring is 15-16mm from inside edge to inside edge (it is slightly oval). The shell was found washed up on the beach.

For scale, the ring is 15-16mm from inside edge to inside edge (it is slightly oval). The shell was found washed up on the beach.

Found washed up on the beach.

Small ribbed mussel in a tidal pool, showing siphons. The inhalant siphon is the one with little frills along the lips, the exhalant siphon is the plain one.

Blue ribbed Mussel. Common throughout NZ.