Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Classis: Amphibia
Subclassis: Lissamphibia
Ordo: Anura
Familia: Alytidae
Genus: Latonia
Species: Latonia nigriventer
Name
Latonia nigriventer (Mendelssohn & Steinitz, 1943)
Holotype: HUJ Amphib. Discogl., No. 1, adult ♀.
Type locality: “east shore of Lake Huleh (Northern District, Safed Subdistrict)”, Israel.
Combinations
Discoglossus nigriventer Mendelssohn & Steinitz, 1943: 231 [original combination]
Latonia nigriventer — Biton, Geffen, Vences, Cohen, Bailon, Rabinovich, Malka, Oron, Boistel, Brumfeld & Gafny, 2013: 3 [name combination]
References
Primary references
Mendelssohn, H. & Steinitz, H. 1943. A new frog from Palestine. Copeia 1943(4): 231–233. JSTOR Reference page.
Biton, R., Geffen, E., Vences, M., Cohen, O., Bailon, S., Rabinovich, R., Malka, Y., Oron, T., Boistel, R., Brumfeld, V. & Gafny, S. 2013. The rediscovered Hula painted frog is a living fossil. Nature Communications 4: 1959. DOI: 10.1038/ncomms2959
Additional references
Biton, R., Boistel, R., Rabinovich, R., Gafny, S., Brumfeld, V. & Bailon, S. 2016. Osteological Observations on the Alytid Anura Latonia nigriventer with Comments on Functional Morphology, Biogeography, and Evolutionary History. Journal of Morphology 277(9): 1131–1145. DOI: 10.1002/jmor.20562
Bina Perl, R.G., Gafny, S., Malka, Y., Renan, S., Woodhams, D.C., Rollins-Smith, L., Pask, J.D., Bletz, M.C., Geffen, E. & Vences, M. 2017. Natural history and conservation of the rediscovered Hula painted frog, Latonia nigriventer. Contributions to Zoology 86(1): 11–37. Full article (PDF)
Links
IUCN SSC Amphibian Specialist Group. 2012. IUCN: Latonia nigriventer (Critically Endangered). The IUCN Red List of Threatened Species 2012: e.T6715A13339841. DOI: 10.2305/IUCN.UK.2012-1.RLTS.T6715A13339841.en
Frost, D.R. 2021. Amphibian Species of the World: an Online Reference. Version 6.1. Electronic Database accessible at https://amphibiansoftheworld.amnh.org/index.php. American Museum of Natural History, New York, USA. DOI: 10.5531/db.vz.0001 Latonia nigriventer . Accessed on 13 July 2008.
http://www.haaretz.com
Vernacular names
Deutsch: Israelischer Scheibenzüngler
English: Hula Painted Frog
eesti: Hula mustkõht
The Hula painted frog (Latonia nigriventer) is an amphibian and the only living member of the genus Latonia.[3] It was thought to be extinct as a result of habitat destruction during the 1950s until the species was rediscovered in 2011. It is endemic to the Lake Hula marshes in Israel.
The draining of Lake Hula and its marshes in the 1950s was thought to have caused the extinction of this frog, along with the cyprinid fish Acanthobrama hulensis and cichlid fish Tristramella intermedia.[4] Only five individuals had been found prior to the draining of the lake. Environmental improvements in the Hula reserve have been cited as a possible reason for the frog's reemergence.[5]
Description
The Hula painted frog has a dark belly with small white spots. It is colored ochre above with a rusty colour grading into dark olive-grey to greyish-black on the sides. Differences from the common painted frog (Discoglossus pictus) include its greater interocular distance, longer forelimbs, and a less projecting snout. The type specimen was an adult female with a body length of 40 millimetres (1.6 in)
Little is known about its history, because few specimens have been found by scientists. Two adults and two tadpoles were collected in 1940 and a single specimen was found in 1955. This would prove to be the last record of this species until 2011.[6]
The four 1940 specimens were to be used as types, but the smaller, half-grown frog was eaten by the larger one in captivity.[2]
According to an ecologist of the Israel Nature and Parks Authority, the frog's Hebrew name, agulashon shehor-gahon (Black-bellied round-tongued), derives from its black belly and round tongue. The scientific name of the species reflects these details as well. Unlike the tongues of other frogs, it is not used to catch prey.[7]
This frog was originally proposed to be a member of the genus Discoglossus, but further genetic and morphological assessment after the rediscovery of the species led to a reassignment to Latonia, for which no other living examples are known.[8] Other members of Latonia are known from the fossil record to have lived as recently as ~1 million years ago.[8][9] However, based on phylogenetic analysis, it was estimated that the last common ancestor of Latonia and its closest related genus, Discoglossus, lived approximately 32 million years ago.[8] On this basis, the Hula painted frog has been labeled a living fossil, the only extant representative of an ancient genetic split.[8][10][11]
Conservation status
In 1996, the IUCN classified this species as "extinct in the wild", the very first amphibian to be given that designation by the IUCN.[1][11] Israel continued to list it as an endangered species in the slim hope that a relict population may be found in the Golan Heights or in southern Lebanon. Following the rediscovery of the species in 2011, the IUCN now considers the frog to be critically endangered as its known habitat occupies less than 2 km2.[1]
In 2000, a scientist from the Lebanese nature protection organisation A Rocha claimed he had seen a frog species which could be Latonia nigriventer in the Aammiq Wetland south of the Beqaa Valley in Lebanon. Two French-Lebanese-British expeditions in the years 2004 and 2005 yielded no confirmation as to the further existence of this species.[12] In August 2010, a search organised by the Amphibian Specialist Group of the International Union for Conservation of Nature set out to look for various species of frogs thought to be extinct in the wild, including the Hula painted frog.[13]
In 2013, a study published in Nature Communications revealed that in 2011 during a routine patrol at the Hula Nature Reserve, ranger Yoram Malka found the frog, which he immediately suspected as being the Hula painted frog, as he claimed he has been on the lookout for it for many years. Scientists confirmed that it was one of this rare species.[5][8][10] An ecologist with the Israel Nature and Parks Authority credited the rehydration of the area for the frog sighting.[14] On November 29, a second specimen was located in the same area.[5] The second Hula painted frog, a female, was found in swampy weeds twenty centimeters deep. It weighed 13 grams, half the weight of its male counterpart.[7] Since the discovery of the first specimen, at least ten more individuals have been found, all in the same area.[15]
In 2016, a team led by Professor Sarig Gafni of the Ruppin Academic Center's School of Marine Sciences discovered populations totaling several hundred individuals by searching in water at night, instead of in marsh mud, finding populations in 17 of the 52 Hula Valley water holes they surveyed.[16]
See also
Frogs portal
Wildlife of Israel
References
IUCN SSC Amphibian Specialist Group (2012). "Latonia nigriventer". IUCN Red List of Threatened Species. 2012: e.T6715A13339841. doi:10.2305/IUCN.UK.2012-1.RLTS.T6715A13339841.en. Retrieved 19 November 2021.
Mendelssohn, Heinrich; Steinitz, Heinz (1943). "A New Frog from Palestine". Copeia. 1943 (4): 231–233. doi:10.2307/1438135. JSTOR 1438135.
Frost, Darrel R. (2014). "Latonia Meyer, 1843". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 12 April 2014.
"Hula Painted Frog Bounces Back From Extinction". Wired UK. 2011-11-21. Retrieved 2013-06-04.
Zafrir, Rinat (November 17, 2011). "Long thought extinct, Hula painted frog found once again in Israeli nature reserve". Haaretz.
"Frog jumps back from extinction". News24. Retrieved 2013-06-04.
Rinat, Zafrir (2011-11-29). "Second of frog species long thought extinct found in Israel nature reserve Israel News | Haaretz Daily Newspaper". Haaretz.com. Retrieved 2013-06-04.
Biton, Rebecca; Geffen, Eli; Vences, Miguel; Cohen, Orly; Bailon, Salvador; Rabinovich, Rivka; Malka, Yoram; Oron, Talya; Boistel, Renaud; Brumfeld, Vlad; Gafny, Sarig (4 June 2013). "The rediscovered Hula painted frog is a living fossil". Nature Communications. 4. Article 1959. Bibcode:2013NatCo...4.1959B. doi:10.1038/ncomms2959. PMID 23736869.
Vasilyan, Davit; Schneider, S. (2014). "Early Pleistocene freshwater communities and rodents from the Pasinler Basin (Erzurum Province, northeastern Turkey)". Turkish Journal of Earth Sciences. 23: 293–307. doi:10.3906/yer-1307-16.
Morelle, Rebecca (2013-06-04). "Rediscovered Hula painted frog 'is a living fossil'". BBC. Retrieved 2013-06-04.
Than, Ker (4 June 2013). "Frog Long Thought Extinct Is Rediscovered in Israel". National Geographic.
Tron, François (April 2005) Second Discoglossus nigriventer rediscovery expedition in the Central Bekaa valley, Lebanon, A Rocha Lebanon.
Black, Richard (2010-08-09). "Global hunt begins for 'extinct' species of frogs". BBC. Retrieved 2010-08-09.
Fleischman, Danielle (2011-11-17). "'Extinct' frog rediscovered in Israel | Jewish Telegraphic Agency". Jta.org. Retrieved 2013-06-05.
Ed Yong (2013-06-04). "'Extinct' frog is last survivor of its lineage". Nature. doi:10.1038/nature.2013.13135. S2CID 88427695. Retrieved 2013-06-07.
Shpigel, Noah (30 April 2016). "Scientists Discover Hula Painted Frog Hasn't Croaked After". Haaretz. Retrieved 1 May 2016.
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