Genus Orbiculus Megerle v Muhlfeld, 1811

(3-4-4-0-26-7-6-33-0-0-0-0-0)
[=Pectunculus E. M. da Costa, 1778]
Ref. Vokes, 1980 p 173
[see also as it applies to Subgenus (Pectunculus) under Genus Dosinia]