The order of Tuatara

The family of extant tuatara

The order containing lizards and snakes

The suborder containing snakes

The family containing venomous snakes wit proteroglyphous fangs

The family name for venomous snakes with solenoglyphous fangs

The family name of typically harmless, non-venomous snakes. Some have opisthoglyphous fangs

Yellow-bellied Sea Snake

Indian Cobra

Coral Snake