Long-tailed pangolin

Last updated

Long-tailed pangolin
Manis tetradactyla (29645778336).jpg
Individual at Dzanga-Sangha Reserve in the Central African Republic
CITES Appendix I (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Pholidota
Family: Manidae
Genus: Phataginus
Species:
P. tetradactyla
Binomial name
Phataginus tetradactyla
Linnaeus, 1766 [3]
Long-tailed Pangolin area.png
Long-tailed pangolin range
Synonyms
  • Manis tetradactylaLinnaeus, 1766
  • Uromanis tetradactyla(Linnaeus, 1766)
  • Manis africanaDesmarest, 1822
  • Manis ceonyxRafinesque, 1820
  • Manis hessiNoack, 1889

The long-tailed pangolin (Phataginus tetradactyla), also called the African black-bellied pangolin or ipi, [4] is a diurnal, arboreal pangolin species belonging to the family Manidae, in the order Pholidota. They feed on ants rather than termites. The common names for this species stem from physical characteristics, such as the extremely long tail or the dark hairs that cover the underside of their bodies and limbs. Pangolin comes from the Malay word pengguling, meaning “something that rolls up”.

Contents

Description

Phataginus tetradactyla specimens
Phataginus tetradactyla.jpg
Specimen, showing long tail
Manis tetradactyla skeleton.jpg
Skeleton at the Smithsonian Museum

Phataginus tetradactyla has a characteristic very long tail (hence its common name), reaching a length around 60–70 cm (24–28 in). The tail contains 46–47 caudal vertebrae, a record among mammals.[ citation needed ] The body can reach a length of 30–40 cm (12–16 in) and weigh 2.0–2.5 kg. The males are larger than the females.

Even with the long tail, this species is the smallest of eight extant species of pangolins. As with other pangolins, the long-tailed pangolin is covered with 9 to 13 rows of overlapping, artichoke leaf-shaped keratinous scales. The scales are dark brown color with a brighter rim, which serves as camouflage. The feet have large, curved claws. The tip of the tail is bare and contains a sensory pad that allows the individual to seek out and grip branches. They do not have teeth, while the tongue is very long. The abdomen, underside of the limbs, and face are covered in dark fur instead of scales. [5]

The long-tailed pangolin is the only diurnal pangolin species.[ citation needed ]

Distribution and habitat

Native to parts of western and central Africa, the long tailed-pangolin has been found as far west and north as Senegal, across the continent to Uganda, and south into Angola. They are found in areas such as the Congo Basin and Guinean forests. A distinct gap in populations has been observed starting in southwest Ghana, with no record of individuals found through to western Nigeria.

Long-tailed pangolins are found in moist, tropical riverine and swamp forest environments, but have been observed in altered forests (Bush), and agricultural areas of former lowland rain forests. They are almost exclusively arboreal, spending the majority of their time in the canopy region. They prefer to live in the interior part of the forests, avoiding the outermost edges. They are capable swimmers, and are usually found near water.

Life history

Behavior

Schuppentier-drawing.jpg

Long-tailed pangolins are a solitary, shy species. They communicate with other members of their species using pheromones that are produced in a pair of anal scent glands. The pheromones in the exudate are likely used to attract mates and establish territorial edges. They are the only species of pangolin known to be diurnal, which may be a method of avoiding food competition with its sister species, the tree pangolin (Manis tricuspis). They have developed a number of antipredatory mechanisms to protect themselves from predators such as pythons and leopards, starting with their scales, which act as camouflage. When threatened, long-tailed pangolin roll themselves into a tight ball, exposing only their sharp scales. They may also emit a foul-smelling fluid from their anal glands. They have been observed sleeping (at night) in this rolled-up posture in tree hollows, epiphytes, tree ferns or in old ant nests.

The primarily arboreal lifestyle of the long-tailed pangolin has come with the development of a number of climbing adaptations. Their long, prehensile tails can easily support their body weight, and are commonly used to seek out supportive holds. Occasionally, they dangle just by their tails. Their durable claws also allow them to dig into the bark of the trees and pull themselves up into the canopy. When they are unable to reach another branch, they have been known to extend their tails to the next hold and climb up it.

While the species spends most of its life in the canopy, it is also an apt swimmer. They occasionally drop from overhanging branches into streams below. They move through the water with a quick, undulating movement.

Diet

The long-tailed pangolin is myrmecophagous, primarily feeding on ants. They are the only known species of pangolin known not to depend on termites as a large portion of their diet. Using their well-developed sense of smell, they seek out arboreal ant nests, then tear them open with their strong, curved claws. They use their long, sticky tongues to capture escaping ants, pulling them into their mouths and swallowing them whole. Since they lack teeth to physically chew the food, they possess a muscular, gizzard-like stomach with horny coated walls to grind the food. The acanthocephalan Intraproboscis sanghae parasitizes the pangolin by using their proboscis hooks to pierce and hold the wall of the intestines. [6]

Reproduction

Little is currently known about long-tailed pangolin reproduction. They are thought to mate throughout the year, with an average gestation period of roughly 140 days. Female pangolins give birth to a live, single offspring at a time. The young are born with soft scales that harden within a few days. They ride on their mother’s tail for up to three months after birth. Long-tailed pangolin reach sexual maturity around two years of age.

Conservation

The long-tailed pangolin is classified as vulnerable by the IUCN. [1] Like most pangolins, the species is heavily exploited for the bushmeat and traditional medicine trade. It is relatively tolerant of moderate habitat modification, as seen in populations that have found homes in agricultural areas of former lowland rainforests.

Related Research Articles

<span class="mw-page-title-main">Pangolin</span> Mammals of the order Pholidota

Pangolins, sometimes known as scaly anteaters, are mammals of the order Pholidota. The one extant family, the Manidae, has three genera: Manis, Phataginus, and Smutsia. Manis comprises four species found in Asia, while Phataginus and Smutsia include two species each, all found in sub-Saharan Africa. These species range in size from 30 to 100 cm. A number of extinct pangolin species are also known. In September 2023, nine species were reported.

<span class="mw-page-title-main">Ground pangolin</span> Species of mammal

The ground pangolin, also known as Temminck's pangolin, Cape pangolin or steppe pangolin is a species of pangolin from genus Smutsia of subfamily Smutsiinae the within family Manidae. It is one of four species of pangolins which can be found in Africa, and the only one in southern and eastern Africa. The animal was named for the Dutch zoologist Coenraad Jacob Temminck.

<i>Manis</i> Genus of mammals

Manis ("spirit") is a genus of South Asian and East Asian pangolins, the Asiatic pangolins, from subfamily Maninae, within family Manidae.

<span class="mw-page-title-main">Manidae</span> Family of pangolins

Manidae ("spirits") is the only extant family of pangolins from superfamily Manoidea. This family comprises three genera, as well as extinct Fayum pangolin.

<span class="mw-page-title-main">Indian pangolin</span> Species of mammal

The Indian pangolin, also called thick-tailed pangolin and scaly anteater, is a pangolin native to the Indian subcontinent. Like other pangolins, it has large, overlapping scales on its body which act as armour. The colour of its scales varies depending on the colour of the earth in its surroundings. It can also curl itself into a ball as self-defence against predators such as the tiger. It is an insectivore feeding on ants and termites, digging them out of mounds and logs using its long claws, which are as long as its fore limbs. It is nocturnal and rests in deep burrows during the day.

<span class="mw-page-title-main">Giant pangolin</span> Species of mammal

The giant pangolin is a species of pangolins from genus Smutsia of subfamily Smutsiinae within the family Manidae. It is the largest living species of pangolins. Members of the species inhabit Africa with a range stretching along the equator from West Africa to Uganda. It subsists almost entirely on ants and termites.

<span class="mw-page-title-main">Sunda pangolin</span> Species of pangolin found in southeast Asia

The Sunda pangolin, also known as the Malayan or Javan pangolin, is a species of pangolin.

<span class="mw-page-title-main">Southern tamandua</span> Species of anteater

The southern tamandua, also called the collared anteater or lesser anteater, is a species of anteater from South America and the island of Trinidad in the Caribbean. It is a solitary animal found in many habitats, from mature to highly disturbed secondary forests and arid savannas. It feeds on ants, termites, and bees. Its very strong foreclaws can be used to break insect nests or to defend itself.

<i>Eurotamandua</i> Extinct genus of pangolins

Eurotamandua is an extinct genus of mammal from extinct family Eurotamanduidae that lived during the middle Eocene.

<i>Tamandua</i> Genus of anteaters from South America

Tamandua is a genus of anteaters in the Myrmecophagidae family with two species: the southern tamandua and the northern tamandua. They live in forests and grasslands, are semiarboreal, and possess partially prehensile tails. They mainly eat ants and termites, but they occasionally eat bees, beetles, and insect larvae. In captivity, they will eat fruits and meat. They have no teeth and depend on their powerful gizzards to break down their food.

<span class="mw-page-title-main">Chinese pangolin</span> Species of mammal

The Chinese pangolin is a pangolin native to the northern Indian subcontinent, northern parts of Southeast Asia and southern China. It has been listed as Critically Endangered on the IUCN Red List since 2014, as the wild population is estimated to have declined by more than 80% in three pangolin generations, equal to 21 years. It is threatened by poaching for the illegal wildlife trade.

<span class="mw-page-title-main">Tree pangolin</span> Species of mammal

The tree pangolin is one of eight extant species of pangolins, and is native to equatorial Africa. Also known as the white-bellied pangolin or three-cusped pangolin, it is the most common of the African forest pangolins.

<span class="mw-page-title-main">Philippine pangolin</span> Species of pangolin

The Philippine pangolin or Palawan pangolin, also locally known as balintong, is a pangolin species endemic to the Palawan province of the Philippines. Its habitat includes primary and secondary forests, as well as surrounding grasslands. This species is moderately common within its limited range, but is at risk due to heavy hunting because of its valued scales and meat. This species is distinguished from the closely related Sunda pangolin by its smaller body-to-tail ratio, smaller scales, and a shorter head. It is listed as Critically Endangered by the IUCN, and Critically Endangered by the Palawan Council for Sustainable Development (PCSD).

Gigantorhynchida is an order containing a single family, Gigantorhynchidae of parasitic worms that attach themselves to the intestinal wall of terrestrial vertebrates. Gigantorhynchida contains the following three genera:

<i>Phataginus</i> Genus of mammals

African tree pangolin (Phataginus) is a genus of African pangolins from subfamily small African pangolins (Phatagininae), within family Manidae. Its members are the more arboreal of the African pangolins.

<i>Smutsia</i> Genus of mammals

African ground pangolin is a genus of pangolins from subfamily Smutsiinae within family Manidae. It was formerly considered a subgenus of genus Manis. Its members are the more terrestrial of the African pangolins. In past, this genus was also present in Europe.

<span class="mw-page-title-main">Pangolin trade</span> Illegal poaching, sale and trafficking

The pangolin trade is the illegal poaching, trafficking, and sale of pangolins, parts of pangolins, or pangolin-derived products on the black market. Pangolins are believed to be the world's most trafficked mammal, accounting for as much as 20% of all illegal wildlife trade. According to the International Union for Conservation of Nature (IUCN), more than a million pangolins were poached in the decade prior to 2014.

Pangolin, sometimes known as a scaly anteater, is a mammal of the order Pholidota -one extant family, Manidae; more specifically:

Intraproboscis is a monotypic genus of acanthocephalans that infest African black-bellied pangolin in the Central African Republic. Its body consists of a proboscis armed with hooks which it uses to pierce and hold the gut wall of its host, and a long trunk. It contains a single species, Intraproboscis sanghae. This genus resembles species in the genus Mediorhynchus but is characterized by infesting a mammal instead of birds, and having a simple proboscis receptacle that is completely suspended within the proboscis, the passage of the retractor muscles through the receptacle into the body cavity posteriorly, absence of neck, presence of a parareceptacle structure, and a uterine vesicle. The proboscis is armed with 34–36 rows of 6 to 7 hooks anteriorly and 15–17 spinelike hooks posteriorly which are used to attach themselves to the intestines of the host. The female worms are up to 180 millimetres long, virtually all of which is the trunk, and 2 millimetres wide.

References

  1. 1 2 Ingram, D.J.; Shirley, M.H.; Pietersen, D.; Godwill Ichu, I.; Sodeinde, O.; Moumbolou, C.; Hoffmann, M.; Gudehus, M.; Challender, D. (2019). "Phataginus tetradactyla". IUCN Red List of Threatened Species . 2019: e.T12766A123586126. doi: 10.2305/IUCN.UK.2019-3.RLTS.T12766A123586126.en . Retrieved 19 November 2021.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. Gaudin, Timothy (28 August 2009). "The Phylogeny of Living and Extinct Pangolins (Mammalia, Pholidota) and Associated Taxa: A Morphology Based Analysis" (PDF). Journal of Mammalian Evolution. 16 (4): 235–305. doi:10.1007/s10914-009-9119-9. S2CID   1773698. Archived from the original (PDF) on 25 September 2015. Retrieved 14 May 2015.
  4. Dictionary.die.net
  5. Schlitter, D.A. (2005). "Order Pholidota". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 531. ISBN   978-0-8018-8221-0. OCLC   62265494.
  6. Amin, O. M., Heckmann, R. A., Sist, B., & Basso, W. U. (2021). A review of the parasite fauna of the black-bellied pangolin, Phataginus tetradactyla Lin.(Manidae), from central Africa with the description of Intraproboscis sanghae n. gen., n. sp.(Acanthocephala: Gigantorhynchidae). The Journal of Parasitology, 107(2), 222-238.

Further reading