Tsuchinoko is a cryptid — a creature whose existence is unconfirmed by science — with reported sightings near Japón, JP. This file collects the accounts and folklore surrounding it.
Where and when was Tsuchinoko sighted?
Location
Japón, JP
Date sighted
Unknown
Coordinates
34.2, 135.4
Testimonies
0
Last updated
LOCATION
What is Tsuchinoko?
The tsuchinoko is Japan's fat snake: a creature 30 to 80 centimetres long with a midsection as thick as a beer bottle, a small triangular head, and a habit of jumping, rolling downhill and snoring. It is usually sold as an ancient monster, but the sources split in two. The old creature is the nozuchi, a mallet-shaped serpent that appears in a Kamakura Buddhist parable as the rebirth of hypocritical monks and is described in the 1712 encyclopaedia Wakan Sansai Zue, which spells its name nozuchi-hebi and never tsuchinoko. The modern celebrity arrived in the 1970s, when the angler Yamamoto Soseki's search, a 1972 newspaper serial by Tanabe Seiko and a 1973 manga by Yaguchi Takao turned a Kansai dialect word for a wooden mallet into a national character. The bounties followed the fame: Shimokitayama, in Nara, offered a million yen in 1988, at the height of the asset bubble, and dozens of towns copied it. Nothing has ever been caught. In Higashi-Shirakawa, Gifu, the reward is still advertised and still rising — ¥1,340,000 for 2026.
The tsuchinoko is usually introduced as an ancient Japanese monster. Read in order, the sources tell a different story: an old creature called the nozuchi (野槌), and a modern celebrity called the tsuchinoko (ツチノコ), which acquired the older creature's biography during the 1970s.
The oldest layer is religious, not zoological. The Kamakura-period Buddhist tale collection Shasekishū explains that monks without virtue are reborn as a mallet-shaped snake in the deep mountains: because in life they had a glib mouth but no eye of wisdom, no hand of faith and no foot of discipline, the nozuchi has a mouth and nothing else. The creature is a sermon about hypocrisy before it is an animal.
The first description that reads like natural history is in Terashima Ryōan's encyclopaedia Wakan Sansai Zue (1712). In volume 45, "Dragons and Serpents", the entry is headed 野槌蛇 and glossed のづちへび, nozuchi-hebi — not tsuchinoko. Terashima writes that it lives in the shade of trees in the deep mountains; that a large one is five sun thick and three shaku long (roughly 15 cm by 90 cm); that head and tail are equal and the tail is not pointed, "resembling a mallet without a handle, and therefore commonly called nozuchi"; that it is often met in the Yoshino mountains of Yamato, around the Natsumi river and the Seimei falls; and that it has a large mouth and bites people's legs, running downhill very fast but climbing very slowly, so that anyone who meets one should get to high ground at once. Two details of that page are rarely quoted. First, the woodcut printed beside the text does not show a fat, mallet-shaped body at all — the artist drew an ordinary slender snake on a rocky slope. Second, the entry immediately above it, the 千歳蝮, is described as "one or two shaku long, with four legs, shaped like a lizard, its head and tail equally large, like a cloth-beating pestle", and is illustrated as a four-legged, long-tailed lizard climbing a tree.
That matters, because when Ide Dōtei (1756–1839) recorded the creature in Shinano in his Shinano Kishōroku, he headed the entry 「野槌 のつち 漢名千歳蝮」 — nozuchi, whose Chinese name is the four-legged sensai-fuku. Ide's own drawing, however, is the familiar shape: a fat, banded, legless spindle with a small head. His notes say it appears around the eighth month, rolls down slopes, does people no harm, and differs from the account in the Wakan Sansai Zue. The manuscript was printed only after his death; the copy digitised by the National Diet Library is the 1887 edition prepared by Ide Tōru. That drawing is the illustration used on this page.
So where does the word tsuchinoko come from? It was a dialect word, current in Kyoto, Mie, Nara and northern Shikoku, for the yokozuchi, the wooden mallet used to beat straw and cloth. Across Japan the animal carried some forty regional names — bachihebi in Tōhoku, nozuchi, tatekurikaeshi, tsuchinbo, tsuchihebi, tsuchikorobi. Neither of the two Edo-period books above calls it a tsuchinoko. The name won nationally in living memory, and it is possible to say almost exactly how.
The man who lit the fuse was Yamamoto Soseki (1919–1988), a Shiga-born angler and essayist whose real name was Yamamoto Kanji. He said he had met the creature on 24 August 1959 in the upper Kamo valley at Kumogahata, north of Kyoto, and he spent the rest of his life looking for it, founding a hunting club, the Notarin Club, and publishing Nigero Tsuchinoko ("Run, Tsuchinoko", Futami Shobō, 1973). In 1972 the novelist Tanabe Seiko serialised Subette Koronde in the evening edition of the Asahi Shimbun, with a character modelled on Yamamoto; NHK dramatised it the following year. In 1973 the manga artist Yaguchi Takao (1939–2020) published Maboroshi no Kaija Bachihebi, which shared the 4th Kōdansha Publishing Culture Award in 1974 with his Tsurikichi Sanpei. In July 1974 Doraemon ran an episode about hunting one in the magazine Shōgaku Gonensei. Within three years a regional dialect word had become a national character. The standard academic study of the subject, Itō Ryūhei's Tsuchinoko no Minzokugaku (Seikyūsha, 2008), states the trajectory in its subtitle: "from yōkai to cryptid".
The bounties came last, and they came with the bubble economy. In 1988 Kazuo Nozaki, a village councillor in Shimokitayama (Nara), launched a "Tsuchinoko Expedition": one million yen for a live capture, three hundred thousand for a shed skin. A photograph taken on 17 April 1988 shows more than two hundred people from around the country taking part. Television crews and weekly magazines arrived daily. Other places followed — Higashi-Shirakawa in Gifu, Susami in Wakayama, Jōge (now Fuchū) in Hiroshima, and in 1989 Mikata in Hyōgo, whose mayor Tsujio Yoshida offered roughly 330 square metres of land. Shimokitayama's own expedition stopped in 1990 as the bubble began to collapse. "No matter how hard we looked, we couldn't even find a tail," Nozaki told Kyodo News in 2024.
The one place that never stopped is Higashi-Shirakawa, a forestry village of the Gifu highlands. In 1989, the Year of the Snake, its municipal newsletter ran a feature on the creature; villagers who had used the local name tsuchihenbi and had kept quiet — the animal was treated as a messenger of the gods — began to talk. The village has published a register of about twenty sightings ever since, and it still advertises a capture bounty that rises every year.
Timeline: the documented record of Tsuchinoko
1712Terashima Ryōan's encyclopaedia Wakan Sansai Zue devotes an entry in volume 45 to the 野槌蛇, glossed nozuchi-hebi and never tsuchinoko: a creature of the Yoshino mountains, three shaku long and five sun thick, with head and tail equal, 'like a mallet without a handle', which bites legs and runs downhill fast but climbs slowly. The woodcut beside the text shows an ordinary slender snake, not a mallet-shaped one.
before 1839Ide Dōtei (1756–1839) records the creature in his Shinano Kishōroku under the heading 'Nozuchi, Chinese name sensai-fuku', noting that it appears around the eighth month, rolls down slopes and does people no harm, and that this differs from the Wakan Sansai Zue. His drawing — a fat, banded, legless spindle — is the image reproduced on this page; the copy digitised by the National Diet Library is the 1887 printing prepared by Ide Tōru.
24 August 1959The angler and essayist Yamamoto Soseki (1919–1988) says he sighted the creature at Kumogahata, in the upper Kamo valley north of Kyoto. He devotes the rest of his life to the search, founds the Notarin Club and becomes the central figure of the modern legend.
1972The novelist Tanabe Seiko serialises Subette Koronde in the evening edition of the Asahi Shimbun, with a character modelled on Yamamoto Soseki. NHK dramatises it the following year and the word tsuchinoko — until then a dialect term of Kyoto, Mie, Nara and northern Shikoku for a wooden mallet — begins to travel nationally.
1973Two books turn the creature into a national character: Yamamoto Soseki publishes Nigero Tsuchinoko (Futami Shobō) and the manga artist Yaguchi Takao (1939–2020) publishes Maboroshi no Kaija Bachihebi, which shares the 4th Kōdansha Publishing Culture Award in 1974. In July 1974 Doraemon runs a tsuchinoko-hunting episode in Shōgaku Gonensei.
17 April 1988Kazuo Nozaki, a village councillor in Shimokitayama, Nara, launches the 'Tsuchinoko Expedition': one million yen for a live capture, 300,000 for a shed skin. A photograph from that day shows more than 200 people from across Japan taking part, with television crews and weekly magazines arriving daily.
1989The bounty wave spreads. Mikata, in Hyōgo, under mayor Tsujio Yoshida, offers roughly 330 square metres of land for a capture; Higashi-Shirakawa, in Gifu, devotes its municipal newsletter to the creature in the Year of the Snake, and villagers who had used the local name tsuchihenbi and kept quiet — the animal was held to be a messenger of the gods — begin to talk.
1990Shimokitayama's expedition is wound up as the asset bubble begins to collapse. 'No matter how hard we looked, we couldn't even find a tail,' Nozaki later told Kyodo News. The register of sightings published by Higashi-Shirakawa also ends this year: its last entries are an August 1990 report of something 'glinting silver, as thick as an arm' seen while cutting grass by a riverbed, and a May 1990 report by a witness who took it for a rolling sake bottle.
1992A corpse found on a farm at Tsukechi, Nakatsugawa, in Gifu causes a stir and is then identified as a shingleback, Tiliqua rugosa — an Australian skink with no wild population in Japan, present only through the pet trade and imported cargo.
21 May 2000A tsuchinoko-shaped animal is found at Yoshii, Okayama, followed days later by a corpse. The Kawasaki University of Medical Welfare identifies it as a yamakagashi, Rhabdophis tigrinus, and locals nickname it tsuchinaro — 'the snake that never made it to tsuchinoko'. The town nonetheless forms a search party and posts a 20-million-yen bounty rising by ¥10,000 a year.
16 June 2001Kenzo Moriguchi reports from Mikata for The Japan Times under the headline 'Town touting mythical snake find; is "rare" creature really a cash cow?'. A reptile captured on 6 June is on show for tourists and a cage is being built at the souvenir shop; the official Toshikazu Miyawaki says it 'might be a tsuchinoko' and hopes for 'the first such species recognized in the 21st century'. Moriguchi notes the town is in no rush to test its authenticity.
June 2004After announcing in May that its expedition had found a tsuchinoko carcass — which examination disproved — Mikata keeps a stubby snake christened 'Tsū-chan' alive in the town. It lays its eggs, deflates and turns out to have been a gravid yamakagashi all along.
1 April 2007A tsuchinoko-shaped dead snake is found in hay on a farm at Ōkura, Yamagata, and photographed; the images circulate as among the most convincing on record. The Japan Snake Institute observes that the hay was imported from Australia and suggests a death adder, Acanthophis — the same pattern of Australian animals arriving in Australian cargo.
March–May 2023Shimokitayama opens the Tsuchinoko Park to revive the memory of the 1988 craze, displaying the literature and photographs Nozaki collected. On 3 May, Higashi-Shirakawa's Tsuchinoko Festa returns after three years of pandemic cancellations: about 230 people search, and find nothing.
3 May 2026The 34th Tsuchinoko Festa is scheduled at Nakagawara Mizube Park in Higashi-Shirakawa. The village's capture bounty for the 2026 fiscal year stands at ¥1,340,000, valid to 31 March 2027 — the same reward, raised by ¥10,000 every year, that it has been advertising since the Year of the Snake in 1989.
Is there a rational explanation for Tsuchinoko?
Almost every celebrated tsuchinoko has been identified, and the identifications are on the record with the names of who made them.
On 21 May 2000 a tsuchinoko-shaped animal was found at Yoshii, Okayama, followed days later by a corpse of the same kind. The Kawasaki University of Medical Welfare examined it and identified a yamakagashi (Rhabdophis tigrinus), a common Japanese snake; locals nicknamed it tsuchinaro, "the snake that never made it to tsuchinoko". In 2004 the Mikata expedition in Hyōgo announced a find that turned out not to be one, and in June of that year a stubby snake christened "Tsū-chan" was kept alive in the town until it laid its eggs and deflated into an ordinary pregnant yamakagashi. In 1992 a corpse from a farm at Tsukechi, Nakatsugawa, in Gifu was identified as a shingleback, Tiliqua rugosa. On 1 April 2007 a tsuchinoko-shaped dead snake surfaced in hay on a farm at Ōkura, Yamagata; the Japan Snake Institute pointed out that the hay had been imported from Australia and suggested a death adder (Acanthophis).
That last detail is the key to the most repeated explanation, which is usually stated wrongly. The blue-tongued skinks — Tiliqua scincoides and its stubby relative Tiliqua rugosa — are not Japanese animals. The Reptile Database gives their range as Australia, and Acanthophis antarcticus as Australia and Papua New Guinea. None of them is a native of the Japanese mountains, so "people saw a blue-tongued skink" is not, by itself, an explanation. It becomes one only through a specific mechanism, and the mechanism is documented: Tiliqua have been kept as pets in Japan since the 1970s, exactly the decade in which reports multiplied, and both escaped pets and animals stowed away in imported Australian timber and fodder turn up in the countryside. Higashi-Shirakawa is a forestry village that handles imported timber, and a creature taken for a tsuchinoko in a neighbouring town proved to be a blue-tongued skink. The writer Araki Hiroshi added the twist that explains why the modern creature has no legs at all: the legless silhouette spread from the manga that started the craze — whereas the 1712 encyclopaedia identifies the beast with the 千歳蝮, which it says has four legs and looks like a lizard.
The native candidates need no import. The mamushi, Gloydius blomhoffii, is genuinely Japanese, genuinely venomous and genuinely short and thick-bodied; the Ryukyuan hime-habu, Ovophis okinavensis, is stouter still. The link is older than the cryptid: the Heian-period character dictionary Shinsen Jikyō glosses 蝮, the character for mamushi, with the reading 乃豆知 — nozuchi. In the oldest lexical record available, "nozuchi" simply meant the Japanese pit viper. Add the ordinary fact that any snake which has swallowed a large animal, or any gravid female, carries a swollen midsection for days, and the beer-bottle silhouette needs no new species.
The strongest argument, though, is chronological rather than zoological. The shape of the phenomenon tracks the media and the economy, not the biology. The register of sightings published by Higashi-Shirakawa — the fullest local record anyone has put in public — runs from about 1934 to 1990 and then stops. The bounty wave begins in 1988, at the peak of the bubble, and dies in 1990 with it, which is how Nozaki himself explains the end of his expedition. The claim that the creature is attested in Japan's eighth-century chronicles does not survive checking either: the Kojiki and the Nihon Shoki record Kayanohime, a goddess of grass and open country, whose alternative name is written Nozuchi — and, as the standard reference works note, nothing in those texts describes her as a snake.
The commercial incentive is not an insinuation; it was reported at the time by a newspaper, in its headline. On 16 June 2001 Kenzo Moriguchi covered Mikata for The Japan Times under the title "Town touting mythical snake find; is 'rare' creature really a cash cow?". A reptile captured on 6 June had been put on show for tourists, and a cage was being built for it on the patio of the souvenir shop. The town official Toshikazu Miyawaki told him the creature "might be a tsuchinoko", that "when the creature was brought to the town hall, its body was really thick and short", and that he hoped it would be "the first such species recognized in the 21st century". Moriguchi's own observation is the one worth keeping: the town was "in no rush to test its authenticity".
In fairness, the believers have a name too, and the village publishes him. Teshima Shigenobu, chairman of the Unidentified Creature Research Society, writes on Higashi-Shirakawa's own site that the tsuchinoko "is not an imaginary creature like the tengu or the kappa", that he has encountered one three times, that they shelter near water and never on high mountains, and — the least commercial sentence on the page — that anyone who meets one should on no account kill it with a stone or a stick. His account also contradicts the village's own fact sheet directly: the village lists the animal as active by day and venomous, Teshima says it forages at night and is harmless. Two descriptions of the same animal, on the same website, that cannot both be right.
Can you visit Tsuchinoko?
There is no tsuchinoko to see, but there is a very real place built around it, and the practical details below come from the municipalities themselves.
Higashi-Shirakawa, Gifu — the only village that never gave up. The Tsuchinoko-kan stands at 426-1 Kando, Higashi-Shirakawa-mura, Kamo-gun, Gifu 509-1302 (tel. +81 574-78-3192). It is run by the third-sector company Furusato Kikaku, sells local produce and tsuchinoko merchandise, and houses the Tsuchinoko Shiryōkan, a documentation room that the village describes as "believed to be the only one in the world". Be warned that neither the village nor the operator publishes opening hours or an admission charge anywhere on their official pages; if you are making a special trip, telephone first, or ask at the village office (tel. +81 574-78-3111). The village is deep in the Gifu highlands and effectively requires a car.
The Tsuchinoko Festa. The village holds a mass search every 3 May. The 34th edition is announced for Sunday 3 May 2026, 08:00 to 15:30, at Nakagawara Mizube Park, 902-5 Kando. Alongside the "serious search" there is a treasure hunt, a QR-code hunting rally, trout catching, a log-sawing race and food stalls. Places must be booked in advance: registration opens at 09:00 on 2 February 2026, first come first served, through the Tsuchinoko Fan Club site. The festival was cancelled from 2020 to 2022 because of the pandemic and resumed on 3 May 2023, when about 230 people searched and found nothing. The organisers warn that it can be called off on the day for weather or river conditions.
The bounty is still live, and this is the current figure. Higashi-Shirakawa's capture reward for the 2026 fiscal year is ¥1,340,000, valid from 1 April 2026 to 31 March 2027; it has been raised by ¥10,000 a year for decades (it was ¥1,310,000 in the 2023 fiscal year). The village's own instructions ask for a live capture by a pair of searchers — one photographs the animal to hold its attention while the other pins it with a capture pole, then it is scooped tail-first with a landing net into a cage or bag — after which you should telephone the village tourism association on +81 574-78-3111. Enquiries: Tsuchinoko Festa Executive Committee, c/o the village Industry and Construction Section, +81 574-78-3111 (ext. 253).
Shimokitayama, Nara — where the craze began. The village where Kazuo Nozaki launched the 1988 expedition set up Shimokitayama Tsuchinoko Park in March 2023 to revive the memory, with a mascot, local jabara citrus products and displays of the literature and photographs Nozaki collected. The older "Tsuchinoko Republic", one of Japan's self-declared mini-nations, has moved its books and memorabilia to the Park, and states that they are shown by prior arrangement only — this is not a walk-in museum, so write ahead.
Two disappointments worth knowing in advance. The famous 200-million-yen bounty of Chikusa, Hyōgo — the largest ever advertised, and still quoted online — no longer exists: it was cancelled when Chikusa was absorbed into the city of Shisō. And Nose, in Osaka prefecture, which several foreign sources name as a bounty town, has never run such a scheme at all.
A genuine safety note. The undergrowth these searches comb through is mamushi country. Gloydius blomhoffii is a real, native and venomous pit viper of exactly the short, thick build that starts tsuchinoko reports, and it bites people every year. Wear boots, watch where you put your hands, and treat any snake you flush out as the one animal here that certainly exists.
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