http://purl.bioontology.org/ontology/NCBITAXON/121227 http://purl.bioontology.org/ontology/SNOMEDCT/71241004 https://en.wikipedia.org/wiki/Pthirus https://www.wikidata.org/wiki/Q7257036 A genus of lice. There are only two extant species, and they are the sole known members of the family Pthiridae. Pthirus gorillae infests gorillas, and Pthirus pubis afflicts humans, and is commonly known as the crab louse or pubic louse. The two species diverged some 3.3 million years ago. Pthirus pthirid