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Category Shape / form From year To year Country Time of day Witnesses Evidence Status Duration Sound Colour Motion Lights Sources include Min photos Min videos Min sources Min score Sort order

3D model Narrated

“Henry Lee”

Stories9

Major H. W. J. Senior's sea serpent from the SS City of Baltimore, Gulf of Aden, 1879

January 28, 1879 · Western Gulf of Aden, east-southeast of the Bab-el-Mandeb strait (lat. 12° 28′ N, long. 43° 52′ E)

International waters

Cryptid · Creature · 11 sources

19Thinly documented

The Royal Yacht Osborne Sea Monster off Sicily

June 2, 1877 · Off the north coast of Sicily, toward Cape Vito (Capo San Vito)

Cryptid · Creature · 18 sources

21Thinly documented

The Barque Pauline Sea Serpent Off Cape Roque

July 8, 1875 · Off Cape Roque (Cabo de São Roque), north-east Brazil, South Atlantic

Cryptid · Creature · 22 sources

22Thinly documented

The Alecton Giant Squid Encounter off Tenerife (the "Bouyer Kraken")

November 30, 1861 · Atlantic Ocean, about forty leagues from Tenerife, between Madeira and Tenerife (Canary Islands)

International waters

Cryptid · Creature · 20 sources

41Partially documented

HMS Daedalus sea serpent: Captain M'Quhae's report and the Richard Owen dispute, 1848

August 6, 1848 · South Atlantic, between the Cape of Good Hope and St Helena, about 300 miles off present-day Namibia (24°44′S, 9°22′E)

International waters

Cryptid · Creature · 25 sources

28Thinly documented

Six Shetland fishermen catch a "mermaid" on their lines off Yell

July 1833 · At sea off the Isle of Yell, North Isles, Shetland, Scotland

Cryptid · Creature · 13 sources

16Thinly documented

The British Officers' Sea Serpent of St. Margaret's Bay

May 15, 1833 · St. Margaret's Bay, between Halifax and Mahone Bay, Nova Scotia

Cryptid · Creature · 16 sources

27Thinly documented

Captain Lorenz von Ferry's sea serpent off Molde, 1746

August 1746 · Jule-Naess (very probably Julneset), near Molde, Møre og Romsdal

Cryptid · Creature · 20 sources

24Thinly documented

Hans and Poul Egede's "most dreadful monster": the Davis Strait sea serpent of 1734

July 6, 1734 · Davis Strait, off the west coast of Greenland, near the 64th degree of latitude

Cryptid · Creature · 24 sources

20Thinly documented

Names2

Henry Lee Person · 9 stories
A naturalist with a sceptic's eye for sea monsters.
Christopher Columbus Person · 3 stories
Admiral of the fleet on the 1492 voyage west, and author of the journal behind two of the archive's oldest sea mysteries.

Documents30 · see all

Ogc-Olc Records Retention Requirements FOIA release

Central Intelligence Agency· 1978-04-06· 60 pages· 1 page mentions it
- p. 42 …Martin — Osborn, Howard — Oswald, Harvey Lee — Oswald, Henry Lee — Oswald, Lee Harvey — Oswald, Lee Henry — Oswald, Marina Nikolaevna Prussakova — Oswald…
CIA FOIA Request Listing 1987 FOIA release

Central Intelligence Agency· 1987-01-01· 99 pages

…1987-01-2M scuouaaacan HOWARD 1937-01-26 SCHULER G HENRY Subject: TERRORIST INCIDENTS Date of Request: Requester…
AARO's Supplement to ORNL's Analysis of a Metallic Specimen Document

All-domain Anomaly Resolution Office· 2024-07· 4 pages

…14 (U) Report, DOE OSTI Technical Report; Taylor, Henry F. and C. F. Flemings; 01 OCT 1956; Factors…
AARO's Supplement to ORNL’s Analysis of a Metallic Specimen Report

All-domain Anomaly Resolution Office· 4 pages

…14 (U) Report, DOE OSTI Technical Report; Taylor, Henry F. and C. F. Flemings; 01 OCT 1956; Factors…
USSR: Measures of Economic Growth and Development, 1950-80 FOIA release

Central Intelligence Agency· 1982-12-08· 399 pages· 1 page mentions it
- p. 3 …HENRY S. REUSS, Wisconsin, Chairman ROGER W. JEPSEN, Iowa, Vice Chairman RICHARD BOLLING, Missouri WILLIAM V. ROTH, Ja., Delaware LEE…
Office of the Secretary of Defense: 13_Supplement_to_Metallic_Specimen Official release

Department of Defense. Office of the Secretary of Defense.· 2023· 4 pages

…14 (U) Report, DOE OSTI Technical Report; Taylor, Henry F. and C. F. Flemings; 01 OCT 1956; Factors…

All 30 documents →