How many types of Jindos are there?

How many types of Jindos are there?
There is primarily one recognized breed of Jindo dog, but there is some variation within the breed. Some people use colloquial terms to describe the slightly different body types found in Jindos. The “gyupgae” (also called “tonggul”) is stockier and more muscular, the “heutgae” (also called “hudu”) is leaner, and the “gakgol” is a blend of the two.