Sea Snake - Information from Wikipedia on these venomous snakes that inhabit marine environments for most or all of their lives. Pelamis platurus: Yellow-bellied Sea Snake - Several photographs, description, natural history and taxonomy. Beaked Sea Snake: Enhydrina schistosa - Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation. Annulated Sea Snake: Hydrophis cyanocinctus - Photograph and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation. Arabian Gulf Sea Snake: Hydrophis lapemoides - Photograph and information from ARKive on this species found in the Arabian Gulf and off the coasts of Sri Lanka, India, Singapore, Thailand and the Malaysian island of Penang. Yellow Sea Snake: Hydrophis spiralis - Photograph and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.