Lupine Wavelength Haemovariform

Biology
The Lupine Wavelength Haemovariform had a Humanoid body which resembled a bipedal wolf, but could also run on all fours (TS: Tardisode 2). It had fur which covered its body, and a wolf-like head. Haemovariforms could spread via bite, and were shown to be highly resistant to bullets. The only known way to kill a Haemovariform was over-exposure to the moonlight on which they thrived. They also saw in a monochromatic spectrum. (DW: Tooth and Claw)

Life cycle
Not much was known about the species natural life-cycle, but they were capable of reproducing (or migrating) via a bite. Once infected, the bitten host was taken over by the invading cells.
 * Whether this means that the species is merely cellular in nature is unknown.

The host would develop black eyes as if the pupils became enlarged. During a full moon, the host would undergo extreme physical changes as the bone structure changed to become more lupine in appearance. Presumably, this would last till dawn or until the Moon set below the horizon.

According to the Doctor, a single cell could take at least a century to mature. If infected by a very small number of cells, he hypothesized that Queen Victoria could remain more or less human, but presumably end up passing on the infection via bites down the generational line till the Haemovariform reached maturity. (DW: Tooth and Claw)

Technology
Haemovariforms had basic spacecraft. (TS: Tardisode 2)

History
A Haemovariform crash-landed on Earth in the 15th century. Father Angelo's Brethren turned from God and began to worship it. Soon, it took up in a young boy's body. The Brethren managed to tame it whilst in wolf-form by tricking it into believing it was allergic to mistletoe. It wanted to begin the "Empire of the Wolf", planning on biting and possessing Queen Victoria and taking control of the world. The Brethren managed to plot a scheme to get Victoria to stay at Torchwood House, however Prince Albert and George MacLeish had already devised a plan to kill it, using the Koh-i-Noor and a "telescope" to drown it in moonlight. When she arrived, a battle broke out between the Brethren and Victoria's soldiers. The Doctor managed to work out how to kill it and used the Koh-I-Noor against it. It is unknown whether Victoria was exposed to Haemovariform cells and had partially become a host. If so, the Doctor hypothesized that the entire subsequent Royal family might be partial Haemovariforms. (DW: Tooth and Claw)

Pete's World
In an alternate version of the Haemovariform's attack on Victoria, it killed her. It is theorised that this was the splitting point which created Pete's World. (REF: Doctor Who: Creatures and Demons)