Ophiogomphus acuminatus (Acuminate Snaketail) Ophiogomphus anomalus (Extra-striped Snaketail) Ophiogomphus arizonicus (Arizona Snaketail) Ophiogomphus aspersus (Brook Snaketail) Ophiogomphus australis (Southern Snaketail) Ophiogomphus bison (Bison Snaketail) Ophiogomphus carolus (Riffle Snaketail) Ophiogomphus cecilia (Green snaketail) Ophiogomphus cerastis Ophiogomphus colubrinus (Boreal Snaketail) Ophiogomphus edmundo (Edmund's Snaketail) Ophiogomphus howei (Pygmy Snaketail) Ophiogomphus incurvatus (Appalachian Snaketail) Ophiogomphus mainensis (Maine Snaketail) Ophiogomphus morrisoni (Great Basin Snaketail) Ophiogomphus obscurus Ophiogomphus occidentis (Sinuous Snaketail) Ophiogomphus purepecha (Mexican Snaketail) Ophiogomphus reductus Ophiogomphus rupinsulensis (Rusty Snaketail) Ophiogomphus severus (Pale Snaketail) Ophiogomphus smithi (Sioux Snaketail) Ophiogomphus spinicornis Ophiogomphus susbehcha (St. Croix Snaketail) Ophiogomphus tibeticus Ophiogomphus westfalli (Westfall's Snaketail)