P pacificus

P. pacificus may refer to:


 * Pristionchus pacificus, a free-living nematode
 * Polistes pacificus, a neotropical paper wasp
 * Palaemon pacificus, a species of shrimp
 * Parazen pacificus, an Atlantic zeiform fish
 * Paraconcavus pacificus, an acorn barnacle
 * Pelagihabitans pacificus a marine bacterium
 * Philanthus pacificus, another species of New World wasp
 * Profundiconus pacificus, a species of sea snail
 * Peregocetus pacificus, an early form of whale discovered in Peru
 * Paraletharchus pacificus, the sailfin eel
 * Porribius pacificus, the New Zealand bat flea