Ptychadena newtoni (Barboza du Bocage, 1886)
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Newton's Grass Frog (Ptychadena newtoni) is an endangered species of frog that lives only in São Tomé Island
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Open encyclopedia reference
Ptychadena newtoni is a species of frog in the family Ptychadenidae. It is endemic to the island of São Tomé in São Tomé and Príncipe, where it occurs up to 600 metres elevation. Its natural habitats are swamps, freshwater marshes, arable land, plantations, rural gardens, urban areas, heavily degraded former forest, ponds, and canals and ditches. It is threatened by habitat loss. The animal was first described as Rana newtoni by Bocage in 1886. The species is named after Francisco Xavier Oakley de Aguiar Newton (1864–1909).
Wikipedia contributors, Ptychadena newtoni; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T18:21:59.576422+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Ptychadena newtoni (Barboza du Bocage, 1886)
- Name authority
- (Barboza du Bocage, 1886)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Amphibia
- Order
- Anura
- Family
- Ptychadenidae
- Genus
- Ptychadena
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAmphibia
- orderAnura
- familyPtychadenidae Dubois, 1987
- genusPtychadena Boulenger, 1917
- speciesPtychadena newtoni (Barboza du Bocage, 1886)
Close classified relatives
These entries share the source’s genus, Ptychadena. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Ptychadena aequiplicata (Werner, 1898) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena ansorgii (Boulenger, 1905) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena baroensis Smith, Noonan & Colston, 2017 | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena bibroni (Hallowell, 1845) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena broadleyi Stevens, 1972 | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena bunoderma (Boulenger, 1907) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena christyi (Boulenger, 1919) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena keilingi (Monard, 1937) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena levenorum Smith, Noonan & Colston, 2017 | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena longirostris (Peters, 1870) | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena mahnerti Perret, 1996 | PtychadenidaeChordata | Accepted speciesRecorded extant |
| Ptychadena mascareniensis (Duméril & Bibron, 1841) | PtychadenidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Rana newtoni Barboza du Bocage, 1886 Barboza du Bocage, 1886 | synonym |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=665229 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:4Q9R4. Classification follows source parent identifiers. English common names may vary by region.