Definition of "octopode"

It is remarkable, that Pennant describes this Crab as an octopode, an error probably due to an imperfect specimen, as the fourth pair of legs are so immediately, at their origin, under the fifth, that, when lost by accident, their sockets may readily [overlooked].

1837, Memoir of the City and North Western Liberties of Londonderry - Parish of Templemore

'I believe he may be the result of the rare triadic union of a saltimbanque, an oyster and an octopode,' mused Alfred. 'Three!' 'Unnatural!' 'Impossible!' The crowd was up in arms again, mirabile dictu-ing, slamming the table, […]

1998, Mark Frutkin, Atmospheres Apollinaire, Dundurn, page 67