Pinna rudis (Rough Pen Shell) - Atlantis Gozo

Pinna rudis, the Rough Pen Shell (a.k.a. Spiny Fan-Mussel or the Maltese common name Nakkra tax-Xewk), is a species of Mediterranean clam.

Pinna rudis, Rough pen shell

Pinna rudis (Rough Pen Shell) - Atlantis Gozo

Atrina serrata, 30 November 2013 (ii) – floridensis

Rough pen shell (Pinna rudis) in Mar de las Calmas Marine Reserve (El Hierro, Canary Islands, Spain Stock Photo - Alamy

Pinna rudis

Pinnidae - Wikipedia

Pinna rudis, Rough pen shell

9 Pinna Rudis Images, Stock Photos, 3D objects, & Vectors

Rough pen shell (Pinna rudis) in Mar de las Calmas Marine Reserve (El Hierro, Canary Islands, Spain Stock Photo - Alamy

Bailey Matthews National Shell Museum