Interesting...Look it up and let me know...
The werewolves named 'Hircine's Hounds' are considered purely creatures by the game. They are separate from the wandering werewolves usually encountered, and yeah, they appear as Statues, something that I feel asks questions. But somehow all of them are Argonians...
Also, the werewolves from Hircine's realm can be just that. Pure werewolves with no human strain in them. While there can be pure-born werewolves in Nirn under a generational curse, the ones in Hircine's realm is simply not the case. Also, Skyrim seems a good place for both werewolves and vampires, since their respective patrons had set foot upon them and an event regarding both vampirism and Lycanthropy happened there. Maybe the first Lycanthrope was a hybrid mentioned?
Hircine: "Ever proud and boastful, Oblivion's Mad Prince stood one fifth day of mid year among the
frigid peaks of Skyrim, and beckoned forth Hircine for parlay. The Huntsman God materialized"
Molag Bal: "Tamriel was still young, and filled with danger and wondrous magick when Bal walked in the aspect of a man and took a virgin, Lamae Beolfag, from the Nedic Peoples. Savage and loveless, Bal profaned her body, and her screams became the Shrieking Winds, which still haunt certain winding fjords of Skyrim. "
http://www.uesp.net/wiki/Shivering:16_Accords_of_Madness,_v._VI
"Hircine secretly bred an abomination in his hidden realm. An ancient Daedroth he summoned, and imbued it with the foul curse of lycanthropy. Of pitch heart and jagged fang, the unspeakable horror had no peer, even among the great hunters of Hircine's sphere."