Pete Oxford / Broad-banded Blue Sea Krait (Laticauda semifasciata), Gili Air, Banda Sea, Indonesia

Pete Oxford / Broad-banded Blue Sea Krait (Laticauda semifasciata) in coral reef, Gili Air, Banda Sea, Indonesia

Pete Oxford / Banded Sea Krait (Laticauda colubrina) surfacing, Lesser Sunda Islands, Indonesia

Pete Oxford / Banded Sea Krait (Laticauda colubrina), Raja Ampat Islands, Indonesia

Pete Oxford / Banded Sea Krait (Laticauda colubrina) in coral reef, Raja Ampat Islands, Indonesia

Paul D Stewart / Illustration of Sea Serpents from Gessner's 'Historia Animalium', volume 4, 1558. Later hand colouring. Gessner's accounts included creatures which exist, and creatures which we now know do not. There...

Paul D Stewart / Illustration of Sea Serpents from Gesner's 'Historia Animalium', volume 4, 1558. Later hand colouring. Italic marginalia by contemporary scholar. Gessner's accounts included creatures which exist, and...

David Hall / Sea snake {Hydrophidae} Indonesia

Pete Oxford / Banded Sea Krait (Laticauda colubrina), Lesser Sunda Islands, Indonesia

David Hall / RF - Banded sea krait (Laticauda sp.) swimming close to surface, Raja Ampat, Indonesia, Pacific Ocean. (This image may be licensed either as rights managed or royalty free.)

Joel Sartore / Photo Ark / Arabian Gulf sea snake (Hydrophis lapemoides) portrait, Arabian Wildlife Centre, UAE. Captive.

Alex Mustard / Banded snake eel (Myrichthys colubrinus) swimming across the seabed, North Sulawesi, Indonesia, Lembeh Strait.

Tom Vierus / Cogger's sea snake (Hydrophis coggeri) resting on the sand at low tide, Suva, Fiji.

Tom Vierus / Black-banded sea krait (Laticauda colubrina) moving over leaf litter, near Suva, Viti Levu, Fiji.

Doug Allan / Banded sea snake (Laticauda colubrina) swimming down from water's surface, Raja Ampat Marine Reserve, Indonesia, Ceram Sea.

David Fleetham / Banded yellowlip sea snake (Laticauda colubrina) cruising over a shallow reef with a palm tree covered island above, Philippines, Pacific Ocean.

Tom Vierus / Yellow-lipped sea krait / Banded sea krait / Colubrine sea krait (Laticauda colubrina) returning to the South Pacific Ocean. The animal enters the frame and then slithers across the sand. Leleluvia Is...

Claudio Contreras / Santa Catalina Island rattlesnake (Crotalus catalinensis), only rattlesnake without rattle, curled up. Santa Catalina Island, Loreto Bay National Park, Sea of Cortez, Mexico. May.

Claudio Contreras / Santa Catalina Island nightsnake (Hypsiglena catalinae). Santa Catalina Island, Loreto Bay National Park, Sea of Cortez, Mexico. May.

Claudio Contreras / Santa Catalina Island nightsnake (Hypsiglena catalinae) slivering on rock. Santa Catalina Island, Loreto Bay National Park, Sea of Cortez, Mexico. May.

Claudio Contreras / Santa Catalina Island rattlesnake (Crotalus catalinensis), only rattlesnake without rattle, curled up. Santa Catalina Island, Loreto Bay National Park, Sea of Cortez, Mexico. May.

Claudio Contreras / Santa Catalina Island rattlesnake (Crotalus catalinensis), only rattlesnake without rattle, slithering in rock. Santa Catalina Island, Loreto Bay National Park, Sea of Cortez, Mexico. May.

Claudio Contreras / Santa Catalina Island nightsnake (Hypsiglena catalinae). Santa Catalina Island, Loreto Bay National Park, Sea of Cortez, Mexico. May.

David Fleetham / Sand anemone / Branching tube anemone (Actinostephanus haeckeli) on sandy seabed, Komodo National Park, Indonesia, Pacific Ocean.

David Fleetham / Banded yellowlip sea snake (Laticauda colubrina) swimming over a critically endangered Hawksbill turtle (Eretmochelys imbricata) on a reef, Philippines, Pacific Ocean.

Chris Mattison / Malaysian blue coral snake (Calliophis intestinalis) coiled, Bukit Larut, Malaysia. Controlled conditions.

Shane Gross / Yellow-lipped sea krait (Laticauda colubrina) hunting over coral reef off Alor, Indonesia.

David Fleetham / A venomous Banded sea krait / Yellow-lipped sea krait (Laticauda colubrina) swimming over a coral reef, Nusa Penida, Bali, Indonesia, Pacific Ocean.

David Fleetham / Yellowlip sea snake / Banded sea krait (Laticauda colubrina) cruising over two Long-spined sea urchin (Diadema setosum) and alcyonarian soft coral, Philippines, Pacific Ocean.

David Fleetham / Venomous Yellow-lipped sea krait (Laticauda colubrina) heading up to the surface to breathe, Philippines.

Alex Mustard / Portrait of a Black saddle snake eel (Ophichthus cephalozona) emerging from the sand at night. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocea...

David Fleetham / Diver keeps a safe distance from this venomous Banded yellowlip sea snake (Laticauda colubrina) also known as a sea krait, Philippines.

David Fleetham / Annulated sea snake (Hydrophis cyanocinctus), Philippines.

David Fleetham / Annulated sea snake (Hydrophis cyanocinctus), Philippines.

Pascal Kobeh / Banded sea snake / banded sea krait (Laticauda colubrina) on the reef, Indonesia, Sea of Flores

Oscar Dewhurst / Short-toed (snake) eagle (Circaetus gallicus) in flight. Extremadura, Spain. March

Magnus Lundgren / Wild Wonders of China / Turtleheaded sea snake (Emydocephalus annulatus) Green Island, Taiwan. The island is a small volcanic island in the Pacific Ocean famous for clear water, coral reefs and marine life in abundance.

Staffan Widstrand / Wild Wonders of China / Photographer Staffan Widstrand holding a Blue-lipped Sea krait, (Laticauda laticaudata)), SanXianTai/ San-Hsien-T'ai Island, Chenggong township, Taiwan

Staffan Widstrand / Wild Wonders of China / David Lin holding s Blue-lipped Sea krait, (Laticauda laticaudata), SanXianTai/ San-Hsien-T'ai Island, Chenggong township, Taiwan

Staffan Widstrand / Wild Wonders of China / David Lin holding a Blue-lipped Sea krait, (Laticauda laticaudata), SanXianTai/ San-Hsien-T'ai Island, Chenggong township, Taiwan

Staffan Widstrand / Wild Wonders of China / Blue-lipped Sea krait (Laticauda laticaudata)) SanXianTai/ San-Hsien-T'ai Island, Chenggong township, Taiwan

Staffan Widstrand / Wild Wonders of China / Yellow-lipped or Banded Sea krait, (Laticauda colubrina), SanXianTai/ San-Hsien-T'ai Island, Chenggong township, Taiwan

Staffan Widstrand / Wild Wonders of China / Yellow-lipped / Banded Sea krait, (Laticauda colubrina), SanXianTai/ San-Hsien-T'ai Island, Chenggong township, Taiwan

Pascal Kobeh / Faint banded seasnake (Hydrophis belcheri) portrait. Philippines.

Pascal Kobeh / Faint banded seasnake (Hydrophis belcheri) swimming over reef. Philippines.

Shane Gross / Banded sea krait (Laticauda colubrina) hunting in seagrass bed. Manado, North Sulawesi, Indonesia.

Juergen Freund / Olive sea snake (Aipysurus laevis) above coral reef. Gunung Api atoll, Indonesia.

Juergen Freund / Olive sea snake (Aipysurus laevis) swimming over coral reef. Gunung Api atoll, Indonesia.

Juergen Freund / Olive sea snake (Aipysurus laevis) swimming over coral reef. Gunung Api atoll, Indonesia.

Juergen Freund / Olive sea snake (Aipysurus laevis) swimming over coral reef. Gunung Api atoll, Indonesia.

Juergen Freund / Banded snake eel (Myrichthys colubrinus) on sea floor. Ambon Island, Indonesia.

Juergen Freund / Diver looking at Banded snake eel (Myrichthys colubrinus) on sea floor. Ambon Island, Indonesia. 2018. Model released.

Tui De Roy / Galapagos racer snake (Pseudalsophis biserialis) feeding on marine iguana hatchling, Cape Douglas, Fernandina Island, Galapagos.

Shane Gross / Larval Sharptail eel (Myrichthys breviceps) swimming at night in The Bahamas.