Danag and Other Types of Vampires

"Danag" was mentioned in the popular novel Twilight by Stephenie Meyer. If you're interested on the novel, or if you're interested on what I think about the novel then here's a REVIEW.

Looking up "danag" on Google will yield unsatisfactory results: most of the links refer to the gossip of having a Filipino film version of Twilight to be entitled Danag - which is just stupid because "twilight" is "takip-silim" in Filipino and as mentioned in
the novel, danag is a Filipino mythological creature most similar to the Western vampire.

But why did I have to look it up? I'm Filipino, I should know that. But I don't. Because I've never heard of it. I figured it's probably not Tagalog (a.k.a. Filipino, the national language, also pertaining to a majority of Filipino people whose primary language is Tagalog).

Further research proved fruitful, however.
I found a PDF file of a fictional story on the net:

B1 Gang Mysteries
Case File No. 10
Aswang sa Hating Gabi
by Joey E. Alcaraz

It presented types of aswang, which the more general term of the somewhat "vampire" in the Filipino folklore.

1. Bampira (Vampire)- It is very much alike the vampire of the West except that instead of sharp fangs, it has multiple, long tongues. It is also known as Amalanhig, Danag, and more appropriate for the Tagalogs, Mandurugo.

2. Manananggal (Viscera Suckers) - Grows wings and detaches its upper half of the body, from the waist up, from its lower half to look for victims, pregnant women are its favorite. Its favorite parts of the body are the heart, lungs, liver, and intestines. Also known as Abat, Buruka, Aswang, Manananggal.
The Manananggal attacks by settling on the victim's roof top while the victim sleeps. It then punctures the roof to create a small hole where it slithes its thread-thin tongue until it reaches the body of the victim below. The tongue then enters the victim's body to consume its internal organs, and if the victim is pregnant, then the baby in her womb is also eaten.

3. Kiwig (Werebeast) - Similar to the Werewolf of the West, a Kiwig shapeshifts on midnight but usually takes the form of a black dog or a big boar, instead of a wolf. Also known as Malakat.