Melanophryniscus stelzneri

Melanophryniscus stelzneri, commonly known as the redbelly toad,[1][2][3] bumble bee toad[4][a] or yellow and black walking toad,[5] is a species of toad in the family Bufonidae which is endemic to Argentina.[1][2] It is present in the pet trade.[1]

Melanophryniscus stelzneri
The name bumble bee toad comes from their distinct black and yellow pattern.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Bufonidae
Genus: Melanophryniscus
Species:
M. stelzneri
Binomial name
Melanophryniscus stelzneri
(Weyenbergh, 1875)
Synonyms[2]
  • Phryniscus stelzneri Weyenbergh, 1875
  • Atelopus stelzneri –Boulenger, 1894
  • Bufo stelzneri –Noble, 1922
  • Dendrophryniscus stelzneri –Noble, 1926

Etymology edit

The specific name stelzneri honors Alfred Wilhelm Stelzner, a German geologist who spent some time in Argentina.[3]

Taxonomy and subspecies edit

Melanophryniscus stelzneri was originally described in 1875.[6] Currently two subspecies are recognized: Melanophryniscus stelzneri stelzneri and Melanophryniscus stelzneri spegazzinii Gallardo, 1961.[1][2] Other former subspecies are now considered full species, namely Melanophryniscus dorsalis and Melanophryniscus fulvoguttatus.[2]

Description edit

Melanophryniscus stelzneri grows to about 3.8 cm (1.5 in), with females typically being larger than males.[4]

 
A pair of M. stelzneri with visibly red toes and high contrast black and yellow dorsal patterns.

Distribution andhabitat edit

They were first discovered in Córdoba, Argentina.[2] They are currently known from the Córdoba, San Luis, and Salta Provinces of Argentina.[1][2] Their range may also extend into Bolivia.[1][7] They occur in grasslands with rocky outcrops. Reproduction takes place in shallow ponds, streams, bogs, and even roadside ditches.[1]

Diet and toxicity edit

Melanphryniscus are toxic in the wild. Their natural diet is made up of mites and ants. It is believed that the toxins are created from alkaloids found in their natural diet.[8] The brightly colored pattern is an example of aposematism.[4] In captivity, they become non-toxic.[5]

Notes edit

  1. ^ Many different common names are used in pet trade, and it is not always clear to exactly which species they refer to.[4]

References edit

  1. ^ a b c d e f g h IUCN SSC Amphibian Specialist Group. (2023). "Melanophryniscus stelzneri". IUCN Red List of Threatened Species. 2023: e.T54831A101424343. doi:10.2305/IUCN.UK.2023-1.RLTS.T54831A101424343.en. Retrieved 4 April 2024.
  2. ^ a b c d e f g Frost, Darrel R. (2024). "Melanophryniscus stelzneri (Weyenbergh, 1875)". Amphibian Species of the World: an Online Reference. Version 6.2. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 4 April 2024.
  3. ^ a b Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 205. ISBN 978-1-907807-42-8.
  4. ^ a b c d "Bumble Bee Toad Care and Breeding". Josh's Frogs. Retrieved 4 April 2024.
  5. ^ a b "Yellow and Black Walking Toads (Melanophryniscus stelzneri)". Amphibian Care. Retrieved 4 April 2024.
  6. ^ Weyenbergh (1875). "Apuntes Pequenos". Periodico-Zoológico (in Spanish and German). 1 (4). Buenos Aires: 331–333. Archived from the original on 6 July 2022 – via Google Books.
  7. ^ De la Riva, Ignacio; Kohler, Jorn; Lotters, Stefan; Reichle, Steffen (2000). "Ten years of research on Bolivian amphibians: Updated checklist, distribution, taxonomic problems, literature and iconography". Revista Espanola de Herpetologia. 14: 19–164 – via ResearchGate.
  8. ^ Hantak, Maggie M.; Grant, Taran; Reinsch, Sherri; Mcginnity, Dale; Loring, Marjorie; Toyooka, Naoki; Saporito, Ralph (2013). "Dietary alkaloid sequestration in a poison frog: an experimental test of alkaloid uptake in Melanophryniscus stelzneri (Bufonidae)". Journal of Chemical Ecology. 39 (11–12): 1400–1406. doi:10.1007/s10886-013-0361-5. PMID 24190023. S2CID 533559.