T. gigas may refer to: Tachypleus gigas, an Asian species of horseshoe crab Thamnophis gigas, the giant garter snake, a reptile of the western United States Thesprotia gigas, the grass mantis, a praying mantis species found in Brazil Tridacna gigas, the giant clam or pa’ua, the largest living bivalve mollusk species Tapinauchenius plumipes, a South American tarantula with the synonym Tapinauchenius gigas
See also Gigas (disambiguation)