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The Sealyham Terrier () is a rare
Welsh Welsh may refer to: Related to Wales * Welsh, of or about Wales * Welsh language, spoken in Wales * Welsh people, an ethnic group native to Wales Places * Welsh, Arkansas, U.S. * Welsh, Louisiana, U.S. * Welsh, Ohio, U.S. * Welsh Basin, during t ...
breed of small to medium-sized
terrier Terrier () is a Dog type, type of dog originally bred to hunt vermin. A terrier is a dog of any one of many Dog breed, breeds or landraces of the terrier Dog type, type, which are typically small, wiry, Gameness, game, and fearless. There are fi ...
that originated in Wales as a
working dog A working dog is a dog used to perform practical tasks, as opposed to pet or companion dogs. Definitions vary on what a working dog is, they are sometimes described as any dog trained for and employed in meaningful work; other times as any ...
. It is principally a white-bodied, rough-coated
breed A breed is a specific group of breedable domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. In literature, there exist seve ...
, developed in the mid-to-late-19th century by Captain John Edwardes at Sealyham House,
Pembrokeshire Pembrokeshire ( ; ) is a Principal areas of Wales, county in the South West Wales, south-west of Wales. It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and otherwise by the sea. Haverfordwest is the largest town and ...
. Following the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, it surged in popularity and was associated with Hollywood stars and members of the
British royal family The British royal family comprises Charles III and other members of his family. There is no strict legal or formal definition of who is or is not a member, although the Royal Household has issued different lists outlining who is considere ...
. Its numbers have dropped significantly since then, with the breed listed as a Vulnerable Native Breed by
the Kennel Club The Royal Kennel Club (KC) is the official kennel club of the United Kingdom. It is the oldest recognised kennel club in the world. Its role is to oversee various canine activities including dog shows, dog agility and working trials. It also ...
; an all-time low was recorded in 2008 when only 43 puppies were registered in the United Kingdom. This decline has been blamed on an influx of foreign and
designer A designer is a person who plans the form or structure of something before it is made, by preparing drawings or plans. In practice, anyone who creates tangible or intangible objects, products, processes, laws, games, graphics, services, or exper ...
breeds, and the Sealyham's reduced usefulness as a working dog. This breed is equally suitable as a family dog or a
working terrier A working terrier is a type of terrier dog bred and trained to hunt vermin including a badger, fox, rat and other small mammals. This may require the working terrier pursuing the vermin into an underground warren. These working dog breeds are ...
, given the right training. It is affected by few breed specific breed disorders, with the only two prevalent conditions being
lens luxation Ectopia lentis is a displacement or malposition of the eye's lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed lens luxation or luxated lens ...
and
canine degenerative myelopathy Canine degenerative myelopathy, also known as chronic degenerative radiculomyelopathy, is an incurable, progressive disease of the canine spinal cord that is similar in many ways to amyotrophic lateral sclerosis (ALS). Onset is typically after the ...
. A DNA test is now readily available to identify dogs who carry the gene that causes lens luxation and breeding programmes can be adjusted.


History

The breed was developed between 1850 and 1891 by Captain John Edwardes, at Sealyham House, near
Wolfscastle Wolf's Castle (), also spelt Wolfscastle, is a village and Community (Wales), community in Pembrokeshire, between Haverfordwest and Fishguard, in southwest Wales. It was historically in the parish of St Dogwells. Geography and transport links ...
in the Welsh county of
Pembrokeshire Pembrokeshire ( ; ) is a Principal areas of Wales, county in the South West Wales, south-west of Wales. It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and otherwise by the sea. Haverfordwest is the largest town and ...
. Originally the breed was used for pest control, to hunt
small game Game or quarry is any wild animal hunted for animal products (primarily meat), for recreation (" sporting"), or for trophies. The species of animals hunted as game varies in different parts of the world and by different local jurisdictions, t ...
, and to eliminate
vermin Vermin (colloquially varmint(s) or varmit(s)) are pests or nuisance animals that spread diseases and destroy crops, livestock, and property. Since the term is defined in relation to human activities, which species are included vary by regi ...
, particularly badgers. The
Welsh Corgi The Welsh Corgi ( or Corgi, plural Corgis, or occasionally the etymologically consistent Corgwn; ) is a small type of herding dog that originated in Wales. The name ''corgi'' is thought to be derived from the Welsh words and (which is muta ...
,
Fox Terrier (Wire) The Wire Fox Terrier (also known as Wire Hair Fox Terrier, Wirehaired Terrier or simply Fox Terrier) is a breed of dog, one of many terrier breeds. It is a fox terrier, and although it bears a resemblance to the Smooth Fox Terrier, they are beli ...
, and the now extinct
English White Terrier The English White Terrier (also known as the White English Terrier) is an extinct dog breed, breed of dog. "English White Terrier" is the failed show ring name of a pricked-ear form of the white fox-working terriers that have existed in Great Bri ...
all played a part in the make up of the Sealyham, although Edwardes did not keep records. He wanted a small white dog with a strong jaw, and a wiry coat. The white coat was particularly prized, as it meant that the hunter in the field could distinguish the dogs from the quarry. Edwardes culled weak dogs, and bred the stronger ones. After Edwardes' death in 1891, other breeders began to work with Sealyhams, including Fred Lewis, who promoted the breed. The breed was shown for the first time in 1903, and the Sealyham Terrier club was created in 1908; the breed was officially recognised by
the Kennel Club The Royal Kennel Club (KC) is the official kennel club of the United Kingdom. It is the oldest recognised kennel club in the world. Its role is to oversee various canine activities including dog shows, dog agility and working trials. It also ...
in 1911. The Sealyham Terrier now is recognised by all of the major kennel clubs in the English-speaking world. During the early stages of its recognition, the breed was alternatively known as the Welsh Border Terrier, or the Cowley Terrier. Mason (1915): p. 34 The American Sealyham Terrier Club was founded in 1913. During the 1920s and 1930s, Sir Jocelyn Lucas used the dogs to hunt
badgers Badgers are medium-sized short-legged omnivores in the superfamily Musteloidea. Badgers are a polyphyletic rather than a natural taxonomic grouping, being united by their squat bodies and adaptions for fossorial activity rather than by their ...
which he usually relocated. At this time he also used Sealyham Terriers for hunting otters, stoats and squirrels. Deciding that he wanted a better hunting dog than the Sealyhams, bred for
conformation showing A dog show is an animal show; it is an event where dogs are exhibited. A conformation show, also referred to as a '' breed show'', is a kind of dog show in which a judge, familiar with a specific dog breed, evaluates individual purebred dogs f ...
, he cross-bred the dogs with the
Norfolk Terrier The Norfolk Terrier is a British dog breed, breed of dog. Prior to gaining recognition as an independent breed in 1964, it was a variety of the Norwich Terrier, distinguished from the "prick eared" Norwich by its "drop ears" (or folded ears). T ...
. This resulted in an unrecognised breed of dog he called the
Lucas Terrier The Lucas Terrier is a small breed of dog of the terrier type which originated in England in the late 1940s. The breed was created by Sir Jocelyn Lucas at his Ilmer Kennels in Watford, Hertfordshire. All living authentic examples can trace thei ...
, which he described as "death to rats and rabbits". The Sealyham surged in popularity after the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
in the UK and the United States. Within the Hollywood film industry, the Sealyham became a fashionable dog to own by the Hollywood elite. The terrier was owned by actors
Tallulah Bankhead Tallulah Brockman Bankhead (January 31, 1902 – December 12, 1968) was an American actress. Primarily an actress of the stage, Bankhead also appeared in several films including an award-winning performance in Alfred Hitchcock's ''Lifeboat (194 ...
,
Humphrey Bogart Humphrey DeForest Bogart ( ; December 25, 1899 – January 14, 1957), nicknamed Bogie, was an American actor. His performances in classic Hollywood cinema made him an American cultural icon. In 1999, the American Film Institute selected Bogart ...
,
Bette Davis Ruth Elizabeth "Bette" Davis (; April 5, 1908 – October 6, 1989) was an American actress of film, television, and theater. Regarded as one of the greatest actresses in Hollywood history, she was noted for her willingness to play unsympatheti ...
,
Elizabeth Taylor Dame Elizabeth Rosemond Taylor (February 27, 1932 – March 23, 2011) was an English and American actress. She began her career as a child actress in the early 1940s and was one of the most popular stars of classical Hollywood cinema in the 19 ...
, and by writer
Agatha Christie Dame Agatha Mary Clarissa Christie, Lady Mallowan, (; 15 September 1890 – 12 January 1976) was an English people, English author known for her 66 detective novels and 14 short story collections, particularly those revolving ...
.
Cary Grant Cary Grant (born Archibald Alec Leach; January 18, 1904November 29, 1986) was an English and American actor. Known for his blended British and American accent, debonair demeanor, lighthearted approach to acting, and sense of comic timing, he ...
owned one which he named Archie Leach – Grant's real name.
Alfred Hitchcock Sir Alfred Joseph Hitchcock (13 August 1899 – 29 April 1980) was an English film director. He is widely regarded as one of the most influential figures in the history of cinema. In a career spanning six decades, he directed over 50 featu ...
had one of his Sealyham Terriers seen in his 1941 film '' Suspicion''. Alfred Hitchcock can also be seen at the start of his 1963 film, '' The Birds'', walking two of his Sealyham Terriers in a
cameo appearance A cameo appearance, also called a cameo role and often shortened to just cameo (), is a brief guest appearance of a well-known person or character in a work of the performing arts. These roles are generally small, many of them non-speaking on ...
, although he also owned a third Sealyham not featured in the movie. The British royal family also favoured these dogs; King
George V George V (George Frederick Ernest Albert; 3 June 1865 – 20 January 1936) was King of the United Kingdom and the British Dominions, and Emperor of India, from 6 May 1910 until Death and state funeral of George V, his death in 1936. George w ...
owned a dog named Jack. In 1959 one Sunday newspaper reported in the UK: "A notice has been posted in
Clarence House Clarence House is a royal residence on The Mall in the City of Westminster, London. It was built in 1825–1827, adjacent to St James's Palace, for the royal Duke of Clarence, the future King William IV. The four-storey house is faced in ...
and
Windsor Castle Windsor Castle is a List of British royal residences, royal residence at Windsor, Berkshire, Windsor in the English county of Berkshire, about west of central London. It is strongly associated with the Kingdom of England, English and succee ...
giving explicit instructions that when
Princess Margaret Princess Margaret, Countess of Snowdon (Margaret Rose; 21 August 1930 – 9 February 2002) was the younger daughter of King George VI and Queen Elizabeth The Queen Mother. She was the younger sister and only sibling of Queen Elizabeth II. ...
has breakfast in bed, her two Sealyhams must be brought to the room along with her breakfast tray." These two dogs were called Pippin and Johnny, and were looked after by the
Queen Mother A queen mother is a former queen, often a queen dowager, who is the mother of the monarch, reigning monarch. The term has been used in English since the early 1560s. It arises in hereditary monarchy, hereditary monarchies in Europe and is also ...
when Princess Margaret fell ill. In the 1960s, children's author
Maurice Sendak Maurice Bernard Sendak (; June 10, 1928 – May 8, 2012) was an American author and illustrator of children's books. Born to Polish-Jewish parents, his childhood was impacted by the death of many of his family members during the Holocaust. Send ...
owned a Sealyham named Jennie, which he featured in his 1967 work ''Higglety Pigglety Pop!''. A Sealyham Terrier photographed in 1915 The Sealyham was once one of the more popular terriers, and one of the best known Welsh breeds. Today, however,
the Kennel Club The Royal Kennel Club (KC) is the official kennel club of the United Kingdom. It is the oldest recognised kennel club in the world. Its role is to oversee various canine activities including dog shows, dog agility and working trials. It also ...
(UK) lists the Sealyham as amongst the most endangered native breeds. In 2008, registrations of new puppies with the Kennel Club dropped to an all-time low of 43, placing it among the bottom three on the list of
Vulnerable Native Breeds image:Skyeterriers.jpg, There were only 37 Skye Terrier puppies registered with the Kennel Club in 2010 Vulnerable Native Breeds are a group of dog breeds originating in the United Kingdom and Ireland, and identified by The Kennel Club (KC) as hav ...
. In October 2011, British magazine '' Country Life'' highlighted the breed on its front cover, with the heading "SOS: Save our Sealyhams", and launched a campaign to save the breed. End of year figures for 2011 showed that 49 puppies were registered with the Kennel Club in the UK, keeping them within the bottom three on the list of most endangered breeds. Another notable Sealyham Terrier, Ch. Efbe's Hidalgo At Goodspice, also known as Charmin, won Best In Show at Crufts in 2009, but his victory was not televised as the
BBC The British Broadcasting Corporation (BBC) is a British public service broadcaster headquartered at Broadcasting House in London, England. Originally established in 1922 as the British Broadcasting Company, it evolved into its current sta ...
had dropped the coverage of the competition earlier that year, following the controversy after the channel showed the documentary ''
Pedigree Dogs Exposed ''Pedigree Dogs Exposed'' is a BBC One investigative documentary, produced by Jemima Harrison, which looks into health and welfare issues facing pedigree dogs in the United Kingdom. It was originally broadcast on 19 August 2008. The Kennel Club ...
''. He had previous won the AKC/Eukanuba National Championship in the United States in 2007, and the
World Dog Show The World Dog Show (WDS) is a Fédération Cynologique Internationale-sanctioned, four- to six-day-long international dog show, held yearly since 1971. It has been called "the most important dog show in the world". The World Show includes agility, ...
in 2008. While in retirement, Charmin attended many shows as a spectator until he died in October, 2018. Harry Parsons, founder of the Working Sealyham Terrier Club, has stated that, "To sustain a breed...you need between 300 to 500 puppies a year". The Kennel Club has blamed the decline of the breed on the availability of designer dogs and newer breeds such as the Shih Tzu, and the banning of
tail docking The tail is the elongated section at the rear end of a bilaterian animal's body; in general, the term refers to a distinct, flexible appendage extending backwards from the midline of the torso. In vertebrate animals that evolved to lose their ta ...
which has reduced their ability as
working dogs A working dog is a dog used to perform practical tasks, as opposed to pet or companion dogs. Definitions vary on what a working dog is, they are sometimes described as any dog trained for and employed in meaningful work; other times as any ...
. Paul Keevil, formerly of the Kennel Club's vulnerable breeds committee explains: "Traditionally, soon after Sealyhams were born, their tails were docked by half their length, because they were small working dogs and they quite often got stuck down holes, meaning that they required short, strong tails for the owner to be able to pull them out." As of 2010, the breed is ranked 152nd out of 168 breeds according to registrations by the
American Kennel Club The American Kennel Club (AKC) is a 501(c)(4) nonprofit breed registry, registry of purebred dog pedigree (animal), pedigrees in the United States. In addition to maintaining its pedigree registry, this kennel club also promotes and sanctions eve ...
. By 2017, the breed ranked 150 out of 190 breeds registered by the American Kennel Club. In 2023, a Sealyham Terrier named Stache won the US National Dog Show.


Appearance

Sealyhams measurements vary by breed standard according to particular countries. The Kennel Club
breed standard In animal husbandry or animal fancy, a breed standard is a description of the characteristics of a hypothetical or ideal example of a breed. The description may include phenotype, physical or morphology (biology), morphological detail, genotype, g ...
states the height of a Sealyham Terrier should not exceed , measured at the
withers Withers are the ridge between the shoulder blades of an animal, typically a quadruped. In many species, this ridge is the tallest point of the body. In horses and dogs, it is the standard place to measure the animal's height. In contrast, catt ...
or at the top of the shoulder blade. The American Kennel Club (AKC) standard states height to be "about" 10.5 inches at the withers. Weight for a Sealyham is also slightly different. The Kennel Club stating for females, or for males, with the AKC standard "23 - 24 lbs for dogs; bitches slightly less." They have a white double
coat A coat is typically an outer garment for the upper body, worn by any gender for warmth or fashion. Coats typically have long sleeves and are open down the front, and closing by means of buttons, zippers, hook-and-loop fasteners (AKA velcro), ...
which requires regular brushing with a wire comb in order to prevent matting. It has a dense undercoat, while the outer coat is wiry and weather resistant. Markings on the face can be in a variety of colours including lemon, black, brown, blue, and badger, which is a mix of brown and black. Heavy body markings or patches or excessive ticking on the coat are discouraged. Sealyhams are low to the ground, and in muddy weather their long coats can become quite dirty. Sealyham coats are groomed by hand stripping, in order to keep the coat from becoming too soft. However, if they are not shown, Sealyhams can be clipped and this is often the preferred grooming approach for pets. As with many terriers, Sealyhams have essentially non-shedding coats.


Temperament

Although happy in the company of others, they are fine if left alone. Sealyham Terriers are suited for both the town and country. They can be strong willed, occasionally vocal, and boisterous but also full of personality and affectionate. While they make for loyal family companions, they can be trained to be working dogs, making them excellent mousers or ratters. They can also be taught as puppies to get along with other animals, including cats and birds. Harry Parsons described his Sealyhams thus: "They make great companions, and the way they bond with their owners is almost magical. I keep six indoors, and if someone rings about an infestation and asks us to go ratting, they will know and are out of the door in a millisecond. If you train them, they'll retrieve. They'll do anything to please you."


Health

A 2024 UK study found a life expectancy of 13.1 years for the breed compared to an average of 12.7 for purebreeds and 12 for
crossbreeds A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations. A domestic animal of unknown ancestry, where the breed status of only one parent or grandparent is known, may also be called a crossbreed though ...
. The Sealyham Terrier is one of the more commonly affected breeds for
primary lens luxation Ectopia lentis is a Ectopia (medicine), displacement or malposition of the eye's lens (anatomy), lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is t ...
which is caused by an
autosomal recessive In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the Phenotype, effect of a different variant of the same gene on Homologous chromosome, the other copy of the chromosome. The firs ...
mutation of the
ADAMTS17 ADAM metallopeptidase with thrombospondin type 1 motif, 17 is a protein that in humans is encoded by the ADAMTS17 gene. Function This gene encodes a member of the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) protein ...
gene. This in turn blocks the flow of fluids in the eye, leading to a painful increase in intra-ocular pressure (
glaucoma Glaucoma is a group of eye diseases that can lead to damage of the optic nerve. The optic nerve transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of ...
) and often irreparable
optic nerve In neuroanatomy, the optic nerve, also known as the second cranial nerve, cranial nerve II, or simply CN II, is a paired cranial nerve that transmits visual system, visual information from the retina to the brain. In humans, the optic nerve i ...
damage, leading to visual field loss and eventual blindness. As of November 2011, the Kennel Club has not highlighted any specific concerns regarding the breed's health to conformation show judges. Due to the low numbers of the breed, two of the most prevalent problems facing the breed today is the
popular sire effect The popular sire effect (or popular stud/sire syndrome) occurs when an animal with desirable attributes is bred repeatedly. In dog breeding, a male dog that wins respected competitions becomes highly sought after, as breeders believe the sire posse ...
and the general problem of genetic diversity within the breed. The breed is predisposed to atopic dermatitis.


References

;General ;Specific *


External links

{{Welsh dogs FCI breeds Terriers Rare dog breeds Dog breeds originating in Wales Vulnerable Native Breeds