Here's my list of Furry hentai as it stands:
In Japanese: ファリー / 獣 ("furry"/"kemono"—"beast". The Japanese word referring to humanoid beast–type hentai.)
- Boundary Between Dream and Reality, The (catgirl)
- Cool Devices
- Ep. 3a "Lover Doll" (catgirl and bunnygirl—costumes, but functionally furry)
- Dragon Pink (catgirl)
- Dragon Rider (catgirl)
- Invasion of the Boobie Snatchers (catgirls)
- Legend of the Wolf Woman (wolf woman)
- Lunatic Night (dog/fox(?)girl)
- Story of Little Monica, The (catgirl)
- Temptation episode 2 (catgirl costume, but the tail works)
- Vixens (AKA Visionary) episode 1 (catgirl; does not have sex)
- Words Worth (catgirl)
Possibly:
- Princess 69 (catgirl; costume)
- Romance is in the Flash of the Sword II (catgirl and bunnygirl?)
- Spaceship Agga Ruter (something?)
Region 2:
- Himekishi Lilia (catgirl? foxgirl?)
- Imouto Jiro (Younger Sister Juice) (catgirl)
- New Cream Lemon
- Ep. 1 "Dream Colored Bunny" (bunnygirl)
Possibly:
- Soukoukijo Iris episode 1 (catgirl)
This list may not be definitive (though I hope to make it so with your help); what did I miss, and what needs correction?