"* Agkistrodontinii - Hoge & Romano-Hoge, 1981" . "* Crotaloidae - Fitzinger, 1826" . "* Cophiadae - Boie, 1827" . "* Lachesinae - Cope, 1900" . "* Crotalini - Oppel, 1811" . "* Crotales - Cuvier, 1817" . . "* Crotaloidei - Eichwald, 1831" . "* Lachesinii - Smith, Smith & Sawin, 1977" . "* Crotalidae - Gay, 1825" . "* Crotalida - Strauch, 1873" . "Pit Viper"@en . . "The Crotalinae, commonly known as pit vipers, crotaline snakes, or pit adders, are a subfamily of venomous vipers found in Eurasia and the Americas. They are distinguished by the presence of a heat-sensing pit organ located between the eye and the nostril on either side of the head. Currently, 18 genera and 151 species are recognized: 7 genera and 54 species in the Old World, against a greater diversity of 11 genera and 97 species in the New World."@en . . "* Agkistrodontini - Hoge & Romano-Hoge, 1983" . "* Cophiinae - Cope, 1895" . "* Bothrophes - Fitzinger, 1843" . "* Bothrophera - Garman, 1884" . "* Crotalinae - Cope, 1860" . "* Crotalina - Bonaparte, 1831" . "* Teleuraspides - Cope, 1871" .