Assuming you mean "scientific name", there are several varieties, all of which have a specific host target. One common in America is termed Necator Americanus and another significant human paricite is Ancylostoma duodenale. Ancylostoma caninumis a common canine variety of hookworm.
source:
Laboratory Studies in Integrated Principles of Zoology15th ed. Hickman, Kats, Keen