"One cannot avoid this problem by identifying consciousness with a type of life form, since theories containing 'types' of life forms are theories of metaphysical substance if they assert the objectivity of their categorical distinctions, yet if types of life-form are merely arbitrary constructs then we are back to there being no matter-of-fact about the existence or otherwise of other minds ."
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When I used the term "form" of embodiment and "form" of life I was thinking more of Aristotle's idea of form=principle and I believe O Shaughnessy who also uses the term form of life was thinking more of the work of the later Wittgenstein.

The quote comes from O Shaughnessy's work "Consciousness and the World" and the post is a presentation of his very interesting "analytical" view of experience. The leap you refer to was also made by Aristotle Kant Wittgenstein and most non analytical philosophers. Consciousness seems to many of the followers of these Philosophers to be something like a principle of a complex form of life. Anthropomorphism is usually associated with a "projection" of some kind of substance into forms where it does not belong. These to me seem to be two different positions. I think the reason we do not attribute consciousness to robots and computers is due to an awareness of different forms of embodiment which do not operate in accordance with the principles of certain forms of life.