Whorl

There are four main types of whorls: plain whorl, central pocket whorl, double loop whorl, and accidental whorl. A plain whorl has at least one ridge that makes a complete circle in the center. A central pocket whorl has at least one ridge that makes an oval, spiral, or any other variant of a circle. Double loop whorls have an “S” shape somewhere on the print. An accidental whorl consists of two separate patterns, excluding the plain arch, that do not match any other definition of a fingerprint pattern.
    
plain whorl                                    central pocket loop whorl              double loop whorl                     


accidental whorl