West African mud turtle

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West African mud turtle
Pelusios castaneus002.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Pleurodira
Family: Pelomedusidae
Genus: Pelusios
Species:
P. castaneus
Binomial name
Pelusios castaneus
(Schweigger, 1812) [1] [2]
Synonyms [2]
  • Emys castaneaSchweigger, 1812
  • Sternothaerus leachianus
    Bell, 1825
  • Pelusios castaneus
    Wagler, 1830
  • Chelys (Sternotherus) castaneusGray, 1831
  • Sternotherus castaneus
    — Gray, 1831
  • Sternotherus leachianus
    A.M.C. Duméril & Bibron, 1835
  • Clemmys (Pelusios) castaneaFitzinger, 1835
  • Sternotherus derbianus
    Gray, 1844
  • Sternothaerus castaneus
    — Gray, 1856
  • Sternothaerus derbianus
    — Gray, 1856
  • Sternothaerus nigricans castaneusSiebenrock, 1906
  • Sternothaerus nigricans var. castaneaBoulenger, 1907
  • Pelusios derbianus
    Schmidt, 1919
  • Pelusios nigricans castaneusHewitt, 1927
  • Pelusios seychellensisSiebenrock, 1906
  • Pelusios subniger castaneusMertens, 1933
  • Pelusios castaneus castaneusLaurent, 1965
  • Pelusios castaneus derbianus— Laurent, 1965
  • Pelusios derbyanus
    Pritchard, 1967(ex errore)

The West African mud turtle (Pelusios castaneus), also known as the West African side-necked turtle or swamp terrapin, [3] is a species of turtle in the family Pelomedusidae. Pelusios castaneus is a freshwater species and is endemic to West and Central Africa.

Contents

Taxonomy

Pelusios seychellensis lectotype Pelusios seychellensis lectotype - journal.pone.0057116.png
Pelusios seychellensis lectotype

The so-called Seychelles black terrapin, Seychelles mud turtle, or Seychelles terrapin was considered a species of turtle (Pelusios seychellensis) in the family Pelomedusidae, endemic to Seychelles. [4]

Genetic analysis of the lectotype has shown, however, that this turtle was never a separate species, and is in fact Pelusios castaneus. [4] It is possible that specimens were confused in a private collection before being acquired by the Zoological Museum Hamburg in 1901, or else mislabeled there. [5]

Distribution

The West African mud turtle is found in the following countries of West and Central Africa: Angola, Benin, Burkina Faso, Cameroon, Cape Verde, Democratic Republic of the Congo, Republic of the Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Príncipe, Senegal, Sierra Leone, The Gambia, Togo. Additionally, it has been introduced to Guadeloupe. [1]

Ecology

The West African mud turtle is carnivorous and feeds on aquatic prey. There are five phases to feeding; preliminary head fixation on the prey, fine-tuning the head fixation, final approach by the head, grasping of the prey followed by manipulation and transportation, and suction, resulting in ingestion after which the prey is swallowed. The final phase varies according to whether the prey is fast-moving, like a fish, or slow-moving like a gastropod mollusc. [6]

Related Research Articles

<span class="mw-page-title-main">Pelomedusidae</span> Family of turtles

Pelomedusidae is a family of freshwater turtles endemic to sub-Saharan Africa, including Madagascar, São Tomé, and the Seychelles(Although this pop. may have been introduced by humans). They range in size from 12 to 45 cm in carapace length, and are generally roundish in shape. They are unable to fully withdraw their heads into their shells, instead drawing them to the side and folding them beneath the upper edge of their shells, hence are called African side-necked turtles.

<span class="mw-page-title-main">African helmeted turtle</span> Species of turtle

The African helmeted turtle, also known commonly as the marsh terrapin, the crocodile turtle, or in the pet trade as the African side-necked turtle, is a species of omnivorous side-necked terrapin in the family Pelomedusidae. The species naturally occurs in fresh and stagnant water bodies throughout much of Sub-Saharan Africa, and in southern Yemen.

<i>Pelusios</i> Genus of turtles

Pelusios is a genus of African side-necked turtles. With 17 described species, it is one of the most diverse genera of the turtle order (Testudines).

<i>Cyclanorbis</i> Genus of turtles

Cyclanorbis is a genus of softshell turtles in the family Trionychidae. The genus is endemic to Africa.

<span class="mw-page-title-main">Forest hinge-back tortoise</span> Species of tortoise

The forest hinge-back tortoise, also known commonly as the serrated hinge-back tortoise or Schweigger's tortoise, is a species of tortoise in the family Testudinidae. The species is indigenous to the tropical forests and marshes of central and western Africa.

<span class="mw-page-title-main">Burmese eyed turtle</span> Species of turtle

The Burmese eyed turtle, also known as the Bengal eyed terrapin, Burmese peacock turtle or swamp turtle, is a species of turtle in the family Geoemydidae of southern Asia.

Pelusios broadleyi, commonly known as the Turkana mud turtle, Broadley's mud turtle, or the Lake Turkana hinged terrapin, is a species of turtle in the family Pelomedusidae. The species is native to eastern Africa.

<span class="mw-page-title-main">Yellow-bellied mud turtle</span> Species of turtle

The yellow-bellied mud turtle is a species of turtle in the family Pelomedusidae. It is found in Madagascar, Malawi, Mozambique, Seychelles, South Africa, and Tanzania.

The variable mud turtle, also known as Rhodesian mud turtle, Mashona hinged terrapin or variable hinged terrapin, is a species of turtle in the family Pelomedusidae. It is widely distributed in Central, East, and Southern Africa. The species was officially described by John Hewitt in 1927 and had to be broken into subspecies due to color variations on the heads of the turtles acrost the regions.

<span class="mw-page-title-main">East African black mud turtle</span> Species of turtle

The East African black mud turtle, also known as the Pan terrapin, is a species of turtle in the family Pelomedusidae, native to eastern and southeastern Africa.

<span class="mw-page-title-main">Adanson's mud turtle</span> Species of reptile

Adanson's mud turtle is a species of turtle in the family Pelomedusidae. The species is endemic to north-central Africa.

<span class="mw-page-title-main">Okavango mud turtle</span> Species of turtle

The Okavango mud turtle or Okavango terrapin) is a species of turtle in the family Pelomedusidae endemic to Africa. It is found in Angola, Botswana, the Democratic Republic of the Congo, Namibia (Caprivi), Zambia, and Zimbabwe.

The African keeled mud turtle is a species of turtle in the family Pelomedusidae. It is endemic to central Africa : the Democratic Republic of the Congo, the Republic of the Congo, and Gabon.

The Central African mud turtle is a species of turtle in the family Pelomedusidae. The species is endemic to Central Africa.

The Ivory Coast mud turtle is a species of turtle in the family Pelomedusidae. It is one of the most recently described turtle species.

 The Pelusios cupulatta is typically found in riverine and wetland habitats mainly located in the southern Ivory Coast of West Africa. Endemic to the Upper Guinean forest region such as wetlands/rivers they are usually found primarily in forested banks as well as aquatic vegetation. Compared to other counterparts within its family, P. Cupulatta prefers an abundance of aquatic vegetation as its primary habitat. Despite this, Pelusios castaneus is a potential competitor due to similar habitats albeit different preferences regarding specific locations. Interspecific competition is able to regulate the coexistence of potential competitors but also niche expansion is available within the family when alone.
 Comparative to other species at a local spatial level, Pelusios niger and Pelusios cupulatta both belong to larger size categories compared to others within the Pelusios records with the maximum male SCL being 31.3 and the maximum female SCL being 27.1. The two different turtle species are also allopatric, meaning that they are related but occur in separate non-overlapping geographical areas compared to the sympatric of P. castaneus. White P. castaneus intensely uses forested banks, P, and cupulatta aren't typically found in such areas as they aim for places with large amounts of aquatic vegetation. In presence of P. niger, P. cupulatta are usually found less than 10 km away showing how closely these two groups typically reside at roughly close locations. 
<span class="mw-page-title-main">African forest turtle</span> Species of turtle

The African forest turtle is a species of turtle in the family Pelomedusidae. It is endemic to Africa, where it can be found in Angola, Burundi, Cameroon, Equatorial Guinea, Gabon, the Democratic Republic of the Congo, the Republic of the Congo, Ghana, Tanzania, and Uganda

Pelusios marani, also known as the Gabon mud turtle, is a species of turtle in the family Pelomedusidae. This species is endemic to Africa.

The African dwarf mud turtle is a species of turtle in the family Pelomedusidae. It is endemic to Africa : in Angola, the Democratic Republic of the Congo, Malawi, and Zambia. These mud turtles are the smallest of all African turtle species, “Nanus” which they are referred to are one of the 3 smallest turtle species in the world. The other two are Stink Pot Musk and Muhlenberg's Bog Turtles. All 3 species barely reach 4 inches as full grown adults. Like many of the world's chelonians, Pelusios castaneus has the potential to live a long life. Reports typically suggest more than 50 years in captivity for this species.

<span class="mw-page-title-main">West African black turtle</span> Species of turtle

The West African black turtle is a species of turtle in the family Pelomedusidae. It is endemic to Africa, in Cameroon, Equatorial Guinea, Gabon, and Nigeria.

<span class="mw-page-title-main">Williams' mud turtle</span> Species of turtle

Williams' mud turtle is a species of turtle in the family Pelomedusidae. The species is endemic to Africa.

References

  1. 1 2 3 Rhodin et al. 2011, p. 000.215
  2. 1 2 Fritz & Havaš 2007, pp. 346–347
  3. Broadley, Donald G. (1973). "Provisional List of Vernacular Names for Rhodesian Reptiles and Amphibians". The Journal of the Herpetological Association of Africa. 10 (1): 17–24. doi:10.1080/04416651.1973.9650652.
  4. 1 2 "One Extinct Turtle Less: Turtle Species in the Seychelles Never Existed". Science Daily. Retrieved April 4, 2013.
  5. Stuckas, Heiko; Gemel, Richard; Fritz, Uwe; Canestrelli, Daniele (April 3, 2013). "One Extinct Turtle Species Less: Pelusios seychellensis Is Not Extinct, It Never Existed". PLOS ONE. 8 (4): e57116. Bibcode:2013PLoSO...857116S. doi: 10.1371/journal.pone.0057116 . PMC   3616038 . PMID   23573185.
  6. Lemell, P.; Weisgram, J. (1996). "Feeding Patterns of Pelusios castaneus (Chelonia: Pleurodira)". Netherlands Journal of Zoology. 47 (4): 429–. doi:10.1163/156854297X00102.

Bibliography