After Frost, 2000-2002 [AMNH Amphibian species of the World]
<==o Brevicipitinae (lyhytpääsammakonsukuiset sammakot) [5/19]
|-- Balebreviceps hillmani ()?
|--o Breviceps (lyhytpääsammakot) [13]
| |-- B. acutirostris ()?
| |-- B. adspersus ()?
| |-- B. fuscus ()?
| |-- B. gibbosus ()?
| |-- B. macrops ()?
| |-- B. maculatus ()?
| |-- B. montanus ()?
| |-- B. mossambicus ()?
| |-- B. namaquensis ()?
| |-- B. poweri ()?
| |-- B. rosei ()?
| |-- B. sylvestris ()?
| `-- B. verrucosus ()?
|-- Callulina kreffti ()?
|--o Probreviceps ()? [3]
| |-- P. macrodactylus ()?
| |-- P. rhodesianus ()?
| `-- P. uluguruensis ()?
`-- Spelaeophryne methneri ()?
Reference(s):
Cannatella, D., 1996-1998: Microhylidae - Narrow-Mouthed Frogs.
–iNet: The Tree of Life: http://tolweb.org/tree/
Frost, D. R., 2000: Amphibian species of the World: An Online Reference.
–iNet: American Museum of Natural History, Department of Herpetology: http://research.amnh.org/herpetology/amphibia/index.html