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The Kiushiu Maru sea serpent gripping a whale off Cape Satano
April 5, 1879 · At sea about nine miles off Cape Satano (Cape Sata), Ōsumi Peninsula, Kagoshima, Kyushu
Japan
Cryptid · Creature · 15 sources
18Thinly documented
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)
Italy
Cryptid · Creature · 18 sources
21Thinly documented
The SS Nestor sea serpent
September 11, 1876 · Strait of Malacca, fifteen miles north-west of North Sand Lighthouse, off Selangor
Malaysia
Cryptid · Creature · 14 sources
19Thinly documented
The Barque Pauline Sea Serpent Off Cape Roque
July 8, 1875 · Off Cape Roque (Cabo de São Roque), north-east Brazil, South Atlantic
Brazil
Cryptid · Creature · 22 sources
22Thinly documented
The Schooner Pearl and the Giant Squid, Bay of Bengal 1874
May 10, 1874 · Bay of Bengal, about 170 miles east of Vandeloos Bay, off Trincomalee, Ceylon
International waters
Cryptid · Creature · 14 sources
14Thinly documented
The Leda sea serpent: Rev. John Macrae and Rev. David Twopeny at Loch Hourn and the Sound of Sleat, 1872
August 20, 1872 · Loch Hourn and the Sound of Sleat, near Glenelg, Inverness-shire, Scotland
United Kingdom
Cryptid · Creature · 14 sources
27Thinly documented
The Lake Pepin "marine monster": where the Pepie legend began (1871)
c. 1871 · Lake Pepin, Mississippi River, near Lake City, Minnesota
United States
Cryptid · Creature · 16 sources
14Thinly documented
The Sheridan Boy and the Striped Queensland Tiger, Cardwell (1871)
1871 · Near Cardwell, Rockingham Bay district, north Queensland
Australia
Cryptid · Creature · 15 sources
16Thinly documented
The Utah Lake "stove-pipe" serpent seen by Bishop William Price near Goshen, Utah (1871)
1871 · Road along the west shore of Utah Lake, near Goshen, Utah
United States
Cryptid · Creature · 16 sources
24Thinly documented
The Bear Lake Monster: Joseph C. Rich's settler sightings
c. 1868 · Bear Lake, west shore road between Fish Haven and St. Charles, Idaho, and South Eden, Utah
United States
Cryptid · Creature · 32 sources
19Thinly documented
MacFarlane's Bear: the ancient unexpected bear of Rendezvous Lake (1864)
June 24, 1864 · Rendezvous Lake, northeast of Fort Anderson, Barren Grounds, Northwest Territories
Canada
Cryptid · Creature · 31 sources
39Partially documented
The Wilmot Apparition: A Wife Seen Aboard the SS City of Limerick (1863)
October 1863 · Stateroom aboard the steamer City of Limerick, North Atlantic, between Liverpool and New York (Mrs Wilmot at Watertown, Connecticut)
International waters
Paranormal · Being / humanoid · 10 sources
20Thinly documented
The Castilian Sea Serpent off St Helena
December 12, 1857 · About ten miles off the northeast end of St Helena, South Atlantic
Saint Helena
Cryptid · Creature · 15 sources
24Thinly documented
The Morzine Possession Epidemic: Le Mal de Morzine (1857)
March 1857 · Morzine, Chablais, Haute-Savoie
France
Paranormal · Other · 24 sources
42Partially documented
The Monongahela Sea Serpent
January 13, 1852 · East-central Pacific Ocean, just south of the equator (reported position 3°10′S, 131°50′W)
International waters
Cryptid · Creature · 10 sources
14Thinly documented
The Greene County Wild Man, Arkansas (1851)
March 1851 · Greene County, Arkansas
United States
Cryptid · Creature · 19 sources
19Thinly documented
The Haunting of HMS Asp
1850 · Royal Dockyard and Paterchurch ruins, Pembroke Dock, Pembrokeshire, Wales
United Kingdom
Paranormal · Being / humanoid · 24 sources
29Thinly documented
The HMS Plumper Sea Serpent
December 31, 1848 · Open Atlantic, nearly due west of Oporto (41°13′N, 12°31′W)
International waters
Cryptid · Creature · 14 sources
11Thinly documented
The Brig Daphne Sea Serpent Hoax
September 20, 1848 · Gulf of Guinea, off Gabon and the Republic of Congo (lat. 4° 11′ S., long. 10° 15′ E.)
International waters
Cryptid · Creature · 14 sources
2Thinly documented
  • · 341 pages· 315 pages mention it
    • p. 5 …00:05:38 C SECO. 00:05:40 CC Roger. SECO. 00:05:41 C Bingo! 00:05:45 C…
    • p. 163 ## CONFIDENTIAL 51:01:45 C Recorder is on CONTINUOUS. C Finish the tape at D-9. C Yes, pitch down…
  • Department of Transportation. Federal Aviation Administration.· 2023· 1 pages· 1 page mentions it
    • p. 1 …NO ## REMARKS Sighted while northeast bound at FL290 @STL280090 Sighted while northeast bound at FL200@STL200000Multiple additional reports:A/C…
  • FAA via National Archives / The Black Vault· 3 pages· 2 pages mention it
    • p. 2 …C 21.12 TM 22.09 C 22.09 TA 22.34 C 22.34 PM 23.12 C 23…
    • p. 3 …TIME ON IDENTIFIES POSITION IDENTIFIER 10 POSITION IDENTIFIER 09.00 1.630 A.M.I.C S 1.630 AQ…
  • U.S. Congress· 2018-04-09· 1 pages· 1 page mentions it
    • p. 1 …1641(c); Public Law 94-412, Sec. 401(c); (90 Stat. 1257) and 50 U.S.C. 1703(c); Public…
  • Department of War· 137 pages· 119 pages mention it
    • p. 93 RESTRICTED c. Odor (if any). d. Rate of evaporation. e . Does trail vary wl.th sound? (spurts) 12. Effect on…
    • p. 101 RESTRICTED c. Odor (!.f any). d. Rate of evaporation. e. Does trail va:ry with sound? (spurts) 12. Effect on…
  • Federal Bureau of Investigation· 137 pages· 119 pages mention it
    • p. 93 RESTRICTED c. Odor (if any). d. Rate of evaporation. e . Does trail vary wl.th sound? (spurts) 12. Effect on…
    • p. 101 RESTRICTED c. Odor (!.f any). d. Rate of evaporation. e. Does trail va:ry with sound? (spurts) 12. Effect on…

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