…Even in the best books on heraldry, natural history, and in other illustrated publications, the elephant is rarely to be seen correctly delineated. A peculiarity in his formation is that the hind legs bend in the same manner as the fore legs, so that, unlike other quadrupeds, it can kneel and rest on its four knees, whereas it is usually depicted with the hind legs to bend in the same way as those of the horse or the cow.

From Fictitious and Symbolic Creatures in Art by John Vinycomb, p10

A few of the nautical charges common in heraldry. From left to right, top to bottom: the anchor; the escallop; the lymphad, or ship, with sails furled; the whelk-shell. Ships should be blazoned as specifically as possible, including the number of masts, whether the sails are furled or not and their color, and if there are any flags.

The salamander in flames, of frequent occurence in heraldry, is of this class. Like the toad, ‘ugly and venemous’, the salamander was regarded by the ancients with the utmost horror and aversion. It was accredited with wondrous qualities, and the very sight of it ‘abominable and fearful to behold.’

From Fictitious and Symbolic Creatures in Art by John Vinycomb, p8