All About Ceylon Swamp Elephant : Vil Aliya

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The Sri Lankan elephant (Elephas maximus maximus), one of three recognized subspecies of the Asian elephant (Elephas maximus), holds pride of place as the national animal (unofficial) of Sri Lanka. Far beyond its role as a wild creature, the elephant has been deeply embedded in the island’s ecological, cultural, and economic fabric. It is revered in religious ceremonies, historically aided in logging operations by dragging timber, and continues to attract global tourists eager to see it in the wild.

Decline of the Elephant Population

During the British colonial period in Ceylon, big-game hunting became so widespread that the elephant population plummeted from around 19,500 in the early 19th century to just about 2,000 by 1967.

Early Observations of the “Swamp Elephant”

One of these prolific elephant hunters was Sir Samuel Baker, who remarked over two centuries ago on the extraordinarily large elephants in the lower Mahaweli Flood Plains. In his writings, he describes a hunt in Manampitiya, where he hunted an enormous specimen that stood nearly 12 feet tall when upright, with disproportionately long legs (Baker, 1854, pp. 129–135).

At the turn of the 20th century, Harry Storey, one of Ceylon’s most renowned big-game hunters, suggested that certain elephants represented a distinct race. Writing in 1907, he described unusually large specimens from the wila country of Tamankaduwa, along the Mahaweli River, some nearly 10 feet tall at the shoulder. Storey noted that while most elephants ranged between 7 feet 6 inches and 8 feet 6 inches, with anything above 9 feet considered exceptionally large, the Tamankaduwa wila elephants consistently exceeded these averages (Storey, 1907, pp. 91, 110).

Scientific Recognition

Neither Baker nor Storey was a scientist, but their accounts drew attention. Dr. Richard Lydekker of the British Museum offered the first expert assessment, though without specimens, he had to rely on Storey’s descriptions. E. L. Walker, a planter and author of Elephant Hunting in Ceylon (1920), provided further observations, particularly of the swamp-dwelling variety.

It was not until 1936 that P. E. P. Deraniyagala conducted a systematic study, identifying distinct traits that separated these elephants from others in Ceylon. He classified them as a subspecies, Elephas maximus vilaliya. The type skull, shot by Walker, is preserved in the Colombo Museum, with a paratype housed at the British Museum. Deraniyagala estimated that only fifty to sixty of these elephants remained, largely confined to the swampy floodplains of the Mahaweli (Crowe, 1957, p. 82).

Distinctive Features

The Swamp Elephants are considered much larger as a group than those found in any other part of Ceylon. Mature individuals are regarded as true giants of their species. While not significantly taller, they are far more thickset and robust in build, with a physique particularly adapted to swampy environments. Their broad feet distribute weight over a larger surface area, preventing them from sinking into the soft, waterlogged soils of their habitat. Unlike other elephants, they spend the greater part of their lives wading through the vilas of Tamankaduwa, rather than roaming higher, drier ground. (Jayasekera, 1969)

Their tusks are either absent or so small that they remain concealed beneath the upper lip, marked instead by large fleshy protuberances above each. The trunk is notably thick, while the adult skull shows a distinct morphology—sloping backward more sharply and appearing more elevated compared to the common subspecies. (Jayasekera, 1969)

The . Crowe (1957), who joined an expedition with Deraniyagala, described his firsthand encounter:

“There on the edge of a clump of swamp elm we saw four huge brown shapes moving slowly away from us. Through the glasses they were brought close and I saw the massive trunk, the lack of visible tusks and the greater than normal bulk that characterize the swamp variety. The herd consisted of three cows and a bull, with the possibility of calves hidden by the high grass.”

Ongoing Debate and Uncertainty

Whether the Marsh Elephant (vilaliya) truly represents a separate subspecies remains unresolved. Some argue that its features may instead reflect phenotypic plasticity—physical adaptations shaped by diet and terrain rather than genetics.

Reports claim that Marsh Elephants once lived in the Flood Plains and Somawathiya National Parks, but no fully verified specimens have been found in recent decades. Their fate—whether extinction, survival in small numbers, or interbreeding with other elephants—remains an open question.

Ceylon Swamp Elephant Skull at Colombo National Museum

References

Baker, S. W. (1854). The Rifle and the Hound in Ceylon (1st ed.). longman, Brown, Green and Longmans.
Crowe, P. K. (1957). Diversions of a Diplomat in Ceylon. D. Van Nostrand Company, Inc.
Jayasekera, R. D. B. (1969). Elephants of the Mahaweli Plains: They are faced with the threat of extinction. Loris : A Journal of Ceylon Wild Life, XI(6), 354–356.
Storey, H. (1907). Hunting and Shooting in Ceylon. Longmans, Green, and Co.