Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update:
November 6th, 2025.
 
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Genus
Nilssonia
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South Asian Softshell Turtles
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Südasiatische Weichschildkröten
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Sydasiatiske Blødskildpadder
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1872 |  |
Nilssonia Gray (type species: Trionyx formosus Gray 1869) |
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1873 | |
Isola Gray (type species: Trionyx peguensis Gray 1870; syn. Fritz & Havas 2006) |
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1904 | |
Aspideretes Hay (type species: Trionyx gangeticus Cuvier 1825; syn. Praschag, Hundsdörfer, Reza & Fritz 2007) |
Contents:
5 species, of which 1 (20.0%) is endemic.
Endemism: 0%  100%
Remarks:
Previously included in
Trionyx (e.g., Wermuth & Mertens 1977).
Distribution:
S. Asia.
Reported from:
Afghanistan,
Bangladesh,
China
(Yunnan),
India
(Andhra Pradesh,
Arunachal Pradesh,
Assam,
Bihar,
Chhattisgarh,
Delhi,
Goa,
Gujarat,
Haryana,
Jammu & Kashmir,
Jharkhand,
Karnataka,
Kerala,
Madhya Pradesh,
Maharashtra,
Manipur,
Meghalaya,
Nagaland,
Odisha,
Punjab,
Rajasthan,
Tamil Nadu,
Telangana,
Tripura,
Uttar Pradesh,
Uttarakhand,
West Bengal),
Myanmar,
Nepal,
Pakistan.
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Nilssonia formosa
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Burmese Peacock Softshell Turtle, Burmese Softshell Turtle
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Burma-Weichschildkröte
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Burmesisk Påfugleblødskildpadde
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1869 | |
Trionyx formosus Gray |
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Nilssonia formosa Gray 1872 |
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Aspidonectes formosus Baur 1893 |
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Amyda formosus Mell 1929 |
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1870 | |
Trionyx peguensis Gray (Fritz & Havas 2006) |
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Isola peguensis Gray 1873 |
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1875 | |
Trionyx grayii Theobald (Fritz & Havas 2006) |
Remarks:
Presence in Yunnan, China, is now thought to have been based on human introduction (Rhodin, Iverson, Fritz, Gallego-Garcia, Georges, Shaffer & Dijk 2025; Farkas & Praschag 2025).
Introduced to:
China
(Yunnan).
Distribution:
India
(Manipur),
Myanmar.
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Nilssonia gangetica
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Ganges Softshell Turtle, (Indian Softshell Turtle)
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Ganges-Weichschildkröte
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Ganges-blødskildpadde
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1825 | |
Trionyx gangeticus Cuvier |
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Aspidonectes gangeticus Wagler 1833 |
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Tyrse gangetica Gray 1844 |
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Isola gangetica Baur 1893 |
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Aspideretes gangeticus Hay 1904 |
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Amyda gangetica Mertens, Müller & Rust 1934 |
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Nilssonia gangetica Praschag, Hundsdörfer, Reza & Fritz 2007 |
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1831 | |
Trionyx javanicus Gray in Griffith [in part; not Trionyx javanicus Geoffroy Saint-Hillaire 1809] (Fritz & Havas 2006) |
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Tyrse javanica Gray 1844 [in part] |
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1835 | |
Gymnopus duvaucelii Duméril & Bibron [in part; substitute name for Trionyx gangeticus Cuvier 1825 and Trionyx hurum Gray 1831] (Fritz & Havas 2006) |
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1912 | |
Trionyx gangeticus mahanaddicus Annandale (Fritz & Havas 2006) |
Remarks:
Not mentioned for Punjab by Singh, Dutta & Singh (2021).
Distribution:
Afghanistan,
Bangladesh,
India
(Andhra Pradesh,
Assam,
Bihar,
Chhattisgarh,
Delhi,
Gujarat,
Haryana,
Jammu & Kashmir,
Jharkhand,
Madhya Pradesh,
Odisha,
Punjab,
Rajasthan,
Telangana,
Uttar Pradesh,
Uttarakhand,
West Bengal),
Nepal,
Pakistan.
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Nilssonia hurum
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Indian Peacock Softshell Turtle
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Pfauenaugen-Weichschildkröte
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Indisk Påfugleblødskildpadde
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1830 | |
Trionyx ocellatus Gray [not Trionyx ocellatus LeSueur 1827] (Fritz & Havas 2006) |
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Gymnopus ocellatus Duméril & Bibron 1835 |
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1831 | |
Trionyx hurum Gray 1831 |
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Isola hurum Baur 1893 |
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Amyda hurum Barbour 1912 |
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Aspideretes hurum Meylan 1987 |
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Nilssonia hurum Praschag, Hundsdörfer, Reza & Fritz 2007 |
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1835 | |
Gymnopus duvaucelii Duméril & Bibron [in part; substitute name for Trionyx gangeticus Cuvier 1825 and Trionyx hurum Gray 1831] (Fritz & Havas 2006) |
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1872 | |
Trionyx bellii Gray (Fritz & Havas 2006) |
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1872 | |
Trionyx sewaare Gray (Fritz & Havas 2006) |
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1874 | |
Trionyx buchanani Theobald (Fritz & Havas 2006) |
Distribution:
Bangladesh,
India
(Arunachal Pradesh,
Assam,
Bihar,
Haryana,
Jammu & Kashmir,
Jharkhand,
Madhya Pradesh,
Maharashtra,
Manipur,
Meghalaya,
Nagaland,
Odisha,
Rajasthan,
Uttar Pradesh,
West Bengal),
Nepal,
Pakistan.
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Nilssonia leithii
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Deccan Softshell Turtle, Nagpur Softshell Turtle, (Leith's Softshell Turtle)
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Leiths Weichschildkröte
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Deccan-blødskildpadde
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1831 | |
Trionyx javanicus Gray in Griffith [in part; not Trionyx javanicus Geoffroy Saint-Hillaire 1809] (Fritz & Havas 2006) |
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Tyrse javanica Gray 1844 [in part] |
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1872 | |
Trionyx leithii Gray 1872 |
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Isola leithii Gray 1873 |
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Amyda leithi Mertens, Müller & Rust 1934 |
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Aspideretes leithii Meylan 1987 |
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Nilssonia leithii Praschag, Hundsdörfer, Reza & Fritz 2007 |
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1872 | |
Aspilus gataghol Gray (Fritz & Havas 2006) |
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1915 | |
Trionyx sulcifrons Annandale (Fritz & Havas 2006) |
Remarks:
Considered regionally extinct in Gujarat (Patel & Vyas 2019).
Distribution:
India
(Andhra Pradesh,
Chhattisgarh,
Goa,
Karnataka,
Kerala,
Madhya Pradesh,
Maharashtra,
Odisha,
Tamil Nadu,
Telangana).
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Nilssonia nigricans
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Black Softshell Turtle, Bostami Softshell Turtle, Chittagong Softshell Turtle, Dark Softshell Turtle
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Brahmaputra-Weichschildkröte
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Indisk Sort Blødskildpadde
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1875 | |
Trionyx nigricans Anderson |
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Amyda nigricans Mertens, Müller & Rust 1934 |
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Aspideretes nigricans Meylan 1987 |
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Nilssonia nigricans Praschag, Hundsdörfer, Reza & Fritz 2007 |
Remarks:
For many years known from only a single locality: an enclosed pond at Saint Byazid Bastami Shrine in Bangladesh. It has recently been reported also from NE. India.
Distribution:
Bangladesh,
India
(Assam,
Nagaland,
Tripura,
West Bengal).
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