 The New Guinea crocodile was first described by the American herpetologist Karl Patterson Schmidt in 1928 as Crocodylus novaeguineae . At one time it was thought that there were two subspecies , C. n. novaeguineae , the New Guinea crocodile native to Papua New Guinea and Western New Guinea , and C. n. mindorensis , the Philippine crocodile , native to several islands including Busuanga , Luzon , Masbate , Mindoro , Negros , Samar and Mindanao . Most authorities now consider that the Philippine crocodile is an entirely separate species . In fact DNA sequencing data reported in 2011 has shown that the Philippine crocodile is paraphyletic with regard to the New Guinea crocodile , and that the latter constitutes a population within the Philippine crocodile . 
