Table B1.

Venomous snake taxa examined in this study and geographic origins of samples. Samples from Zooherp and SDA were obtained from single snakes. All other samples were pooled from multiple individuals. Sources: Biotoxins, St. Cloud, FL, USA; Clodomiro Picado, San Juan, Costa Rica; CEPB, Centro de Estudos e Pesquisas Biológicas, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brasil; KRZ, Kentucky Reptile Zoo, Slade, KY, USA; SVRI, Snake Venom Research Institute, Nanning, China; Zooherp, Salt Lake City, UT, USA.

Family	Taxon	Origin	Source
Elapidae	Bungarus multicinctus	China	SVRI
	Dendroaspis polylepis	Kenya	Biotoxins
	Micrurus surinamensis	Letícia, Colombia	CEPB
	Naja kaouthia	Unknown	KRZ
	Naja sputatrix	Java	Zooherp
	Ophiophagus hannah	Unknown	KRZ
Viperidae	Bitis gabonica	Burundi	Zooherp
	Bitis nasicornis	Unknown	Zooherp
	Cerastes cerastes	Unknown	KRZ
	Daboia palestinae	Unknown	KRZ
	Daboia russellii siamensis	Thailand	SVRI
	Pseudocerastes fieldi	Unknown	KRZ
Crotalidae	Agkistrodon contortrix contortrix	South Carolina	Biotoxins
	Agkistrodon piscivorus leucostoma	Missouri	KRZ
	Atropoides nummifer	SE Mexico	KRZ
	Bothriechis schlegelii	Costa Rica	Clodomiro Picado
	Bothrops moojeni	Goiás, Brasil	CEPB
	Bothrops erythromelas	NE Brazil	KRZ
	Calloselasma rhodostoma	Thailand	KRZ
	Cerrophidion sasai	Costa Rica	Clodomiro Picado
	Crotalus adamanteus	Florida	Biotoxins
	Crotalus durissus terrificus	Brazil	CEPB
	Crotalus cerastes	Yuma, Arizona	SDA
	Crotalus mitchellii pyrrhus	Yavapai, Arizona	SDA
	Crotalus viridis concolor	Rio Blanco, Colorado	SDA
	Crotalus viridis viridis	Rio Blanco, Colorado	SDA
	Lachesis stenophrys	Costa Rica	Clodomiro Picado
	Ovophis okinavensis	Okinawa	SDA
	Protobothrops elegans	Itoman, Okinawa	SDA
	Protobothrops flavoviridis	Itoman, Okinawa	SDA
	Protobothrops mucrosquamatus	Nago, Okinawa	SDA