There are 78 municipalities in Puerto Rico.
Names from CIA World Factbook (http://www.cia.gov/cia/publications/factbook/geos/rq)
... Anencephaly Aneurysm of sinus of Valsalva[?] Aneurysm, intracranial berry[?] Aneurysm[?] Angel shaped phalangoepiphyseal dysplasia[?] Angelman syndrome ...