''Mertensophryne'' is a genus of
true toad
A true toad is any member of the family Bufonidae, in the order Anura (frogs and toads). This is the only family of anurans in which all members are known as toads, although some may be called frogs (such as harlequin frogs). The bufonids now ...
s (family Bufonidae).
[ They are found in eastern and southern ]Democratic Republic of Congo
The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is t ...
to Kenya
Kenya, officially the Republic of Kenya, is a country located in East Africa. With an estimated population of more than 52.4 million as of mid-2024, Kenya is the 27th-most-populous country in the world and the 7th most populous in Africa. ...
, Tanzania
Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...
, Malawi
Malawi, officially the Republic of Malawi, is a landlocked country in Southeastern Africa. It is bordered by Zambia to the west, Tanzania to the north and northeast, and Mozambique to the east, south, and southwest. Malawi spans over and ...
, southeastern Zimbabwe
file:Zimbabwe, relief map.jpg, upright=1.22, Zimbabwe, relief map
Zimbabwe, officially the Republic of Zimbabwe, is a landlocked country in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Bots ...
, and adjacent Mozambique
Mozambique, officially the Republic of Mozambique, is a country located in Southeast Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west, and Eswatini and South Afr ...
. Their common names include snouted frogs, Chirinda forest toads, and forest toads.[ The genus is named for ]Robert Mertens
Robert Friedrich Wilhelm Mertens (1 December 1894 – 23 August 1975) was a German herpetologist. Several taxa of reptiles are named after him.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore ...
, German zoologist and herpetologist.
Taxonomy
''Mertensophryne'', as currently understood, consist of the former ''"Bufo" taitanus'' group and the genera ''Mertensophryne'' (as formerly defined) and ''Stephopaedes''. The latter is monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent co ...
and still recognized as a subgenus
In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus.
In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the ge ...
. The closest relatives of ''Mertensophryne'' remain uncertain but probably include ''Poyntonophrynus
''Poyntonophrynus'', also known as pygmy toads, are a genus consisting of ten true toad species native to Sub-Saharan Africa. Originally, all ''Poyntonophrynus'' species were included in the genus ''Bufo''. The genus was split due to large enough ...
'', '' Vandijkophrynus'', and '' Capensibufo''.[
]
Description
''Mertensophryne'' lack tympanum and columella
Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire.
His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...
. They frequently show digit reduction. They are relatively small frogs; among the ten species studied by Liedtke and colleagues, the maximum female snout–vent length varied between . Eggs are relatively large, in diameter, and few in number (maximum 35–188).
Species
There are 14 recognized species:[
]
References
{{Taxonbar, from=Q282403
Amphibian genera
Amphibians of Sub-Saharan Africa
Taxonomy articles created by Polbot