There were originally eight subspecies of tiger, the Javan, the Bali, the Caspian, the Indochinese, the Sumatran, the Bengal, the Siberian, and the South China tiger. Out of the nine subspecies of tiger, three (The Bali Tiger, The Javan Tiger, the Caspian Tiger) of which are extinct.

BENGAL OR INDIAN TIGER :This is the most common subspecies of tiger The Bengal tiger or the Royal Bengal tiger (Panthera tigris ) is the most common subspecies of tiger and is found primarily in India and Bangladesh. It lives in varied habitats: grasslands, subtropical and tropical rainforests, scrub forests, wet and dry deciduous forests, and mangroves. Males in the wild usually weigh 205 to 227 kg (450 to 500 lb), while the average female will weigh about 141 kg. However, the northern Indian and the Nepalese Bengal tigers are somewhat bulkier than those found in the south of the Indian Subcontinent, with males averaging around 235 kilograms (520 lb). While conservationists already believed the population to be below 2,000. the most recent audit by the Indian Government’s National Tiger Conservation Authority has estimated the number at just 1,411 wild tigers (1165–1657 allowing for statistical error), a drop of 60% in the past decade.

INDOCHINESE TIGER – The Indochinese Tiger (Panthera tigris corbetti) are about 20% smaller and are darker than Bengal tigers. The Indochinese Tiger also called Corbett’s tiger, is found in Cambodia, China, Laos, Burma, Thailand, and Vietnam. Males weigh from 150–190 kg (330–420 lb) while females are smaller at 110–140 kg (240–310 lb). Their preferred habitat is forests in mountainous or hilly regions. In Vietnam, almost three-quarters of the tigers killed provide stock for Chinese pharmacies.

MALAYAN TIGER –  This subspecies was proved to be a “true subspecies“, living in Thailand and Malaysia in 2004. The Malayan tiger is one of the smallest subspecies of tigers, along with the Sumatran tiger.

Recent counts showed there are 600–800 tigers in the wild, making it the third largest tiger population, behind the Bengal tiger and the Indochinese tiger. The Malayan tiger is the smallest of the mainland tiger subspecies, and the second smallest living subspecies, with males averaging about 120 kg and females about 100 kg in weight. The Malayan tiger is a national icon in Malaysia, appearing on its coat of arms and in logos of Malaysian institutions, such as Maybank.

SUMATRAN TIGER : The Sumatran Tiger (Panthera tigris sumatrae) is found only on the Indonesian island of Sumatra, and is critically endangered. It is the smallest of all living tiger subspecies, with adult males weighing between 100–140 kg (220–310 lb) and females 75–110 kg (170–240 lb). This has led to suggestions that Sumatran tigers should have greater priority for conservation than any other subspecies. While habitat destruction is the main threat to existing tiger population, 66 tigers were recorded as being shot and killed between 1998 and 2000, or nearly 20% of the total population.

Even though the Sumatran is one of the smallest tiger subspecies, it still is a pretty big cat and is the length of a school cafeteria table!

SIBERIAN OR AMUR TIGER:The Siberian tiger (Panthera tigris altaica), also known as the Amur, Manchurian, Altaic, Korean or North China tiger, which is the most northernmost subspecies, is confined to the Amur-Ussuri region of Primorsky Krai and Khabarovsk Krai in far eastern Siberia, where it is now protected. The largest of the tiger subspecies, males can be as long as a station wagon. These tigers also have the palest orange coat and the fewest stripes.

SOUTH CHINA TIGER : The South China Tiger (Panthera tigris amoyensis), also known as the Amoy or Xiamen tiger, is the most critically endangered subspecies of tiger and is listed as one of the 10 most endangered animals in the world. These tigers are slightly smaller than the Indochinese subspecies. In the 1950s the Chinese government ordered that these tigers be destroyed because they were viewed as pests. Today, there are less than 30 South China tigers left in the wild. Thankfully, the Chinese have taken steps toward a plan to protect the remaining South China tigers. There are currently 59 known captive South China tigers, all within China, but these are known to be descended from only six animals. Thus, the genetic diversity required to maintain the subspecies may no longer exist. Currently, there are breeding efforts to reintroduce these tigers to the wild.

Extinct Tiger subspecies:

Unbelievably three of the eight subspecies are now

* The Bali Tiger (Panthera tigris balica) was limited to the island of Bali. They were the smallest of all tiger subspecies, with a weight of 90–100 kg in males and 65–80 kg in females. These tigers were hunted to extinction—the last Balinese tiger is thought to have been killed at Sumbar Kima, West Bali on 27 September 1937; this was an adult female. No Balinese tiger was ever held in captivity. The tiger still plays an important role in Balinese Hinduism. The Bali tiger met its demise in the 1940’s. These Tigers are no more available as they are Extinct.

* The Javan tiger (Panthera tigris sondaica) was limited to the Indonesian island of Java. It now seems likely that this subspecies became extinct in the 1980s, as a result of hunting and habitat destruction, but the extinction of this subspecies was extremely probable from the 1950s onwards (when it is thought that fewer than 25 tigers remained in the wild). The last confirmed specimen was sighted in 1979, but there were a few reported sightings during the 1990s. With a weight of 100–141 kg for males and 75–115 kg for females, the Javan tiger was one of the smaller subspecies, approximately the same size as the Sumatran tiger.[citation needed] the Javan in the 1980’s. These Tigers are no more available as they are Extinct.

*The Caspian Tiger (formerly Panthera tigris virgata), also known as the Persian tiger or Turanian tiger was the westernmost population of Siberian tiger, found in Iran, Iraq, Afghanistan, Turkey, Mongolia, Kazakhstan, the Caucasus, Tajikistan, Turkmenistan, and Uzbekistan until it apparently became extinct in the late 1950s, though there have been several alleged more recent sightings of the tiger. Though originally thought to have been a distinct subspecies, genetic research in 2009 suggest that the animal was largely identical to the Siberian tiger. The Caspian in the 1970’s. These Tigers are no more available as they are Extinct.

There are currently 6 subspecies of tigers. The different subspecies are found in areas of Asia, India and Russia. The largest subspecies is found in snowy areas of Russia. The smallest and darkest subspecies is found farther south, in the jungles of Indonesia. Tigresses (females) are always smaller than males.