dcsimg

Brief Summary

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Diagnosis Can be distinguished from all other species by the following combination of characters: (1) Snout-vent lengt 35.4-40.8 mm; (2) fingers and toes slender, with pointed moderately tips; (3) outer metatarsal tubercles absent; (4) tibiotarsal articulation of adpressed hind limb reaching posterior border of tympanum; (5) webbing of feet reduced, transparent, and thin.
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Distribution

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Known from ca. 6 km N Isla Chaulinec,Los Lagos Region (X Region) and Puente Traihuanca, Laguna San Rafael National Park, and Las Guaitecas National Reserve in the Aisén Region (XI Region), Chile.
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Morphology

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Herbacea
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Molecular Biology

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Oleo essencial estragol, metilchavicol (60 - 70%) (27)
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Reproduction

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Sementes
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Diagnostic Description

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Description Based on three specimens of the type series (two females and one male). Snout rounded from above, sloping in lateral profile, loreal region concave in cross section; nostril dorsolateral, closer to tip of snout than to anterior margin of eye; eye diameter equals distance between eye and nostrils; internarial distance equals eye diameter. Tympanum round and defined, its diameter less than distance between nostril and snout tip. Supratympanic fold evident, reaching posterior part of tympanum. Tongue elongate, with notch at tip. Choanae rounded; dentigerous processes of the vomer between choanae. Forelimbs slender. Fingers in order of increasing length: I-II-IV-III. Webbing absent on hand; fingers slender with moderately pointed tips. Inner palmar tubercle ovoid, flattened; outer palmar tubercle rudimentary; subarticular tubercles equal in size to the outer palmar tubercle. Toes long, in order of increasing length: I-II-III-V-IV; toes with moderately pointed tips. Inner metatarsal tubercle oval, elongate; outer tubercle absent; subarticular tubercle small when compared with the palmar subarticular tubercles. Tarsal fold absent. Web small, transparent and thin. Dorsal and ventral skin smooth; skin around vent and posterior thighs slightly granular. Coloration in alcohol: Dorsal ground color light gray with minute dark spots. Groin with two dark brown spots. Irregular dark brown spots on thighs. Posterior thighs and cloaca1 area with minute, rounded spots. Tympanic region with broad, longitudinal band of dark brown extending from posterior margin of eye over entire tympanum, and involving supratympanic fold. Canthal stripe dark brown, narrow. Margins of lips dark brown. Arms light brown with minute, irregular dark brown spots. Venter yellowish-white with minute, dark brown spots. Color in 1ife: Dorsal ground color light brown or yellowish-brown. Ventral areas white. Dorsal, inguinal, and facial spots brown.
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Behavior

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Europa
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Conservation Status

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DD. Data Deficient.
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Batrachyla nibaldoi

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Batrachyla nibaldoi is a species of frog in the family Batrachylidae. It is endemic to Chile and known from the Los Lagos and Aysén Regions between Villa O'Higgins in the south and Kent and Melchor Islands in the north; there is a record from Alao Island further north but this might represent Batrachyla taeniata.[3][4] The specific name nibaldoi honors Nibaldo Bahamonde, Chilean marine biologist,[5] in recognition of his "remarkable contribution to the development of the zoology in Chile".[2] Common name Nibaldo's wood frog has been coined for it.[1][3]

Description

Adult females measure 35–41 mm (1.4–1.6 in) in snout–vent length; male length is not reported. The snout is rounded in dorsal view and sloping in lateral profile. The tympanum is visible; the supra-tympanic fold is evident. The fingers and toes are slender and have moderately pointed tips. The fingers have no webbing whereas the toes have thin, basal webbing. Dorsal ground color is from light brown or yellowish brown[2] to grayish, with dark brown spots that forming longitudinal lines.[4] There is a dark canthal band, continuing behind the eye to the tympanic region. The ventrum is white.[2]

Habitat and conservation

Batrachyla nibaldoi occur in steppe habitat in valleys surrounded by forest of Nothofagus antarctica, Nothofagus betuloides and Drymis winteri. They are often found under logs rocks and in shrub habitat.[1] Males call from lagoons and temporary pools with plenty of vegetation.[4] Eggs are laid under rocks and moss and when rain floods, larvae develop in the water.[1]

This species is locally abundant,[1] including along the Carretera Austral.[4] Its range includes protected areas, e.g., Laguna San Rafael National Park. The introduced American mink is a potential threat.[1]

References

  1. ^ a b c d e f IUCN SSC Amphibian Specialist Group (2019). "Batrachyla nibaldoi". IUCN Red List of Threatened Species. 2019: e.T56333A79812178. doi:10.2305/IUCN.UK.2019-1.RLTS.T56333A79812178.en. Retrieved 16 November 2021.
  2. ^ a b c d Formas, J. Ramón (1997). "A new species of Batrachyla (Anura: Leptodactylidae) from southern Chile". Herpetologica. 53 (1): 6–13. JSTOR 3893239.
  3. ^ a b Frost, Darrel R. (2017). "Batrachyla nibaldoi Formas, 1997". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 3 February 2018.
  4. ^ a b c d Rabanal, Felipe E. (2010). "Amphibia, Anura, Ceratophryidae, Batrachyla nibaldoi Formas, 1997: latitudinal extension in Patagonia, southern Chile, and distributional range actualization" (PDF). Check List. 6 (2): 287–288. doi:10.15560/6.2.287.
  5. ^ Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 154. ISBN 978-1-907807-42-8.
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Batrachyla nibaldoi: Brief Summary

provided by wikipedia EN

Batrachyla nibaldoi is a species of frog in the family Batrachylidae. It is endemic to Chile and known from the Los Lagos and Aysén Regions between Villa O'Higgins in the south and Kent and Melchor Islands in the north; there is a record from Alao Island further north but this might represent Batrachyla taeniata. The specific name nibaldoi honors Nibaldo Bahamonde, Chilean marine biologist, in recognition of his "remarkable contribution to the development of the zoology in Chile". Common name Nibaldo's wood frog has been coined for it.

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