![Pentamerus oblongus](http://www.geoed.co.uk/cdn/shop/products/pictrilonew_b14b1fb4-8ade-4db1-8110-bdf7b819cc3c_{width}x.png?v=1583770919)
A fine, almost complete internal mould of both valves showing the median septa, the swollen umbo arched over the brachial valve & the brachal teeth sockets. From Presteigne, Powys, Wales.
Size: 45mm x 42mm
Size: 45mm x 42mm