Porcellanids are, after brachyuran crabs, the most successful decapod group to achieve a crab-like body form through carcinisation. Unlike brachyurans, porcellanids retained the ability to swim by flapping their abdomen, armed with a well developed tail fan. Here, we present an exceptional case of carcinisation, with the South-American porcellanid, Allopetrolisthes spinifrons, an obligatory commensal of the sea-anemone species Phymactis papillosa and Phymanthea pluvia.

And ever as any black cockade may emerge, rises the many-voiced growl and bark: À bas, Down!

There was no wiggle room here, no leeway, no margin for error.

Fifty years ago Gannets in twos and threes were not infrequently seen on Breydon, whither they went and fished for yawlers (half-grown herrings), that were plentiful there in those deep-water days.