Amnirana
Amnirana·Conservation status for the genus Amnirana as a whole is not specified. However, the text notes that some African species are widespread but contain undescribed cryptic diversity, suggesting potential conservation concerns related to undiscovered populations.
Amnirana is a genus of "true frogs" primarily found in Sub-Saharan Africa, with one species extending into southern and southeastern Asia. These frogs are characterized by their robust bodies and often a distinctive white upper lip, leading to the common name "white-lipped frogs." The genus's delimitation is largely based on molecular evidence, and it contains a significant amount of undescribed diversity.
Key Facts
- ›Amnirana is a genus of true frogs belonging to the family Ranidae.
- ›The genus is predominantly found in Sub-Saharan Africa, with one species in southern and southeastern Asia.
- ›Many species within the genus are characterized by a white upper lip.
- ›The genus is often referred to as "white-lipped frogs."
- ›Molecular evidence plays a significant role in the current delimitation of the genus.
- ›There is substantial undescribed diversity within the African species of Amnirana.
White-Lipped Frogs
Sub-Saharan Africa, Southern Asia, Southeastern Asia
Robust Body, White Upper Lip, Paired Vocal Sacs In Males
About Amnirana
Amnirana: The White-Lipped Frogs
Amnirana is a genus of frogs belonging to the family Ranidae, commonly referred to as "true frogs." This genus has a distinct geographical distribution, being primarily found in Sub-Saharan Africa, although one species extends its range into parts of southern and southeastern Asia. The common name "white-lipped frogs" is often associated with this genus, as many of its species exhibit a characteristic white upper lip, though this is not a universal trait across all members.
Taxonomy and Classification
The taxonomic history of Amnirana involves its initial introduction as a subgenus of Rana. It was frequently grouped with the then broadly defined genus Hylarana. However, a significant revision in 2015 by Oliver and colleagues led to a more restricted delimitation of Hylarana and the elevation of Amnirana to its own genus rank. Molecular evidence has been instrumental in defining the current boundaries of the Amnirana genus, often in conjunction with geographical data. While Amnirana nicobariensis has been suggested as a sister taxon to the African clade, its precise placement within the genus is still a subject of ongoing research and potential reclassification.
Description and Characteristics
Frogs within the Amnirana genus are typically characterized by robust bodies, with sizes ranging from medium to very large. Their dorsal surfaces can vary in texture, from smooth to shagreened, and their patterns may be uniform or mottled. The most frequently noted distinguishing feature is the often white upper lip, a trait that gives them their common name. Males of the species are equipped with paired vocal sacs, which can be either internal or external, suggesting a role in vocal communication.
Diversity and Distribution
Currently, there are 12 recognized species within the Amnirana genus. However, it is widely believed that the actual number of species is substantially higher. Molecular data, in particular, indicate the existence of at least seven new African species that remain undescribed. This highlights a significant area of ongoing research and potential discovery within the genus. While some African species are widespread, the presence of cryptic diversity means that distinct, genetically separate populations may exist that are not yet formally recognized.
Source: Wikipedia ↗
Frequently Asked Questions
What are white-lipped frogs?
White-lipped frogs are commonly known members of the frog genus Amnirana. This name is derived from the characteristic white upper lip that many species within this genus possess.
Where are Amnirana frogs found?
The genus Amnirana is primarily distributed across Sub-Saharan Africa. However, one species of Amnirana is also found in parts of southern and southeastern Asia.
How are the Amnirana genus and Hylarana genus related?
Amnirana was initially established as a subgenus of Rana and was frequently grouped within the genus Hylarana. A revision in 2015 redefined Hylarana more narrowly and re-established Amnirana as a distinct genus.
What is the physical description of Amnirana frogs?
Amnirana frogs typically have robust bodies and can range from medium to very large in size. Their backs are usually smooth to shagreened in texture and can be uniform or mottled in pattern. A notable feature is the usually white upper lip.