Is an Arch or Tentarch
7 there are Arch ,Tentarch, whorl, loop ,double loop ,mixed,and pocketed loop
The easiest way to record your fingerprint is by applying ink to your finger and then pressing it firmly onto a paper surface. Many records of fingerprints now, however, are electronic, copying your fingerprint into a database for matching. People can also "dust" for fingerprints because of the oil on our hands. The oil will deposit in the shape of the ridges, and the dust will cling to the oil revealing the fingerprint.