transmutationist

Lamarck was a transmutationist (an early exponent of evolution) and older than Cuvier.

A Conversation with Rebecca Stott about The Coral Thief 2010

Those three conceptions of the organic world which may be spoken of as the teleological, the typical, and the transmutationist, have often been regarded as mutually antagonistic and conflicting.

On the Genesis of Species St. George Mivart

We have dwelt a little upon this, because it is by such seeming solutions of difficulties as that which this passage supplies that the transmutationist endeavours to prop up his utterly rotten fabric of guess and speculation.

Famous Reviews R. Brimley Johnson 1899

So I took refuge in that "thatige Skepsis" which Goethe has so well defined; and, reversing the apostolic precept to be all things to all men, I usually defended the tenability of the received doctrines when I had to do with the transmutationist; and stood up for the possibility of transmutation among the orthodox ” thereby, no doubt, increasing an already current, but quite undeserved, reputation for needless combativeness.

The Life and Letters of Thomas Henry Huxley Huxley, Leonard 1900

Skepsis "which Goethe has so well defined; and, reversing the apostolic precept to be all things to all men, I usually defended the tenability of the received doctrines when I had to do with the transmutationist; and stood up for the possibility of transmutation among the orthodox -- thereby, no doubt, increasing an already current, but quite undeserved, reputation for needless combativeness.

Life and Letters of Thomas Henry Huxley — Volume 1 Thomas Henry Huxley 1860