← Species collection

Cyclocoridae · Philippine record

Philippine Shrub Snake

Oxyrhabdium modestum(DUMÉRIL 1853)

Length
Length not yet addedAtlas entry awaiting completion
Venom status
Venom classification not yet addedHuman effects: atlas summary awaiting completion
Known venom effects
Effects not yet summarised in this atlas

Uses streambanks in selectively logged forest. Resting snakes occupied fern fronds, fern axils and low sapling branches. Its atlas account links 8 named island or island-group records to the source literature.

OccurrenceConfirmed
Islands named8
Natural history5 sourced topics
References4

Literature updated 2026-10-07 · Editorial review pending

Explore the island records ↓

Species portrait

Oxyrhabdium modestum

Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.

The illustrated collection

Adult & juvenile

Adult · study plate

Oxyrhabdium modestum

Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.

Juvenile · study plate

Oxyrhabdium modestum

Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.

Life stages will be labelled from the contributor’s information. Images alone do not establish identification or a locality record.

Media provenance

Every image carries its source.

Contributor images are forthcoming. Photographs and illustrations will retain their individual credits, permissions and evidence notes.

A closer look

Natural history & identification

Ecology & habitat

Uses streambanks in selectively logged forest. Resting snakes occupied fern fronds, fern axils and low sapling branches.

Evidence & scope

Literature documented · p. 104; Fig. 76

Northeast Mindanao field series.

Behaviour

Forages on the ground beside water. Juveniles sleep in low vegetation at night.

Evidence & scope

Literature documented · p. 104, species account

Age-specific observations.

Resting observations do not imply exclusively daytime activity.

Reproduction

The species account records egg-laying reproduction. A verified Philippine clutch-size range, incubation interval and breeding calendar are not established here.

Evidence & scope

Literature documented · Reproduction field

Reproductive mode reported for this named species.

Mode alone does not establish litter or clutch size, seasonal timing, or captive husbandry requirements.

Philippine distribution

The atlas records Oxyrhabdium modestum from these named Philippine areas: Mindanao, Samar, Leyte, Negros, Bohol, Basilan, Dinagat, Camiguin Sur. These are literature areas rather than a continuous range boundary.

Evidence & scope

Literature documented · Existing checklist occurrence statement and distribution review

The original evidence level is retained.

A country listing cannot establish an island or a precise locality.

Taxonomic context

Oxyrhabdium modestum is retained in the atlas’s dated checklist under Cyclocoridae. The authority is (DUMÉRIL 1853). Earlier names and the original source notes are preserved below for comparison.

Evidence & scope

Literature documented · Checklist identity and nomenclatural trail

Checklist verified 2026-09-05; not a newly revised taxonomic backbone.

Historical names can cover different biological concepts; synonyms should not be used to transfer records automatically.

Across the archipelago

Where this species is recorded

Philippines
Oxyrhabdium modestum — all named islandsMindanaoSamarLeyteNegrosBoholBasilanDinagatCamiguin Sur

Documented islands: gold · island groups: dashed circles

Island-level records · not continuous habitat coverage. Dashed circles locate groups, not individual observations.

Philippine distribution

Documented places

8 named islands / island groups

Select an island to read its distribution record and sources. Uncoloured islands are not evidence of absence.

Distribution record & sources

Philippines (Basilan, Bohol, Dinagat, Leyte, Mindanao, Negros, Samar, Camiguin Sur) Type locality: see comment (in error)

The atlas records Oxyrhabdium modestum from these named Philippine areas: Mindanao, Samar, Leyte, Negros, Bohol, Basilan, Dinagat, Camiguin Sur. These are literature areas rather than a continuous range boundary.

The Reptile Database — species checklist, 17 June 2026 ↗Existing checklist occurrence statement and distribution review

Synopsis of the Snakes of the Philippines: A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature ↗Existing checklist occurrence statement and distribution review

References attached to this species account. Island-specific evidence is shown separately where available.

The Reptile Database — species checklist, 17 June 2026 ↗

Synopsis of the Snakes of the Philippines: A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature ↗

The amphibians and reptiles of Mindanao Island, southern Philippines, II: the herpetofauna of northeast Mindanao and adjacent islands ↗

Oxyrhabdium modestum — The Reptile Database species account ↗

Living with wildlife

Give this snake space.

Venom classification not yet added · Effects not yet summarised in this atlas

Observe from a distance. Do not handle, corner or capture a snake to identify it. An incomplete venom account is not evidence that a species is safe to handle.

After a suspected snakebite, keep the person still and arrange urgent medical care. Avoid tight tourniquets, cutting, suction and unproven remedies. Do not wait to identify the snake before seeking help.

WHO guidance on snakebite first aid

Species record

Taxonomy, occurrence & evidence.

Identity

Accepted name
Oxyrhabdium modestum
Common names
Philippine Shrub Snake
Authority
(DUMÉRIL 1853)
Year described
1853
Taxonomic status
Accepted species
Family
Cyclocoridae
Genus
Oxyrhabdium
Species epithet
modestum
Persistent ID
PH-SERP-CBF6CAD82A
Checklist checked
2026-09-05

Philippine occurrence

Status
Present
Confidence
Confirmed
Basis
2018 Philippine synopsis treatment plus current RDB listing
Islands named
Mindanao, Samar, Leyte, Negros, Bohol, Basilan, Dinagat, Camiguin Sur

Range noteCountry/island text is not a range polygon or locality record.

Source distribution statement

Philippines (Basilan, Bohol, Dinagat, Leyte, Mindanao, Negros, Samar, Camiguin Sur) Type locality: see comment (in error)

Knowledge coverage

EndemismResearch pending
EcologyLiterature documented
VenomVenom classification not yet added
Effects not yet summarised in this atlas
Detailed research: Research pending
ConservationResearch pending

Names through time

Nomenclatural trail

Sténognathe modestus DUMÉRIL 1853: 72 Stenognathus modestus — DUMÉRIL & BIBRON 1854: 504 Stenognathus modestus — GÜNTHER 1873: 169 Geophis schadenbergi FISCHER 1885: 93 Geophis modestus — BOETTGER 1896: 77 (part.) Oxyrhabdium modestum — BOULENGER 1893: 302 Oxyrhabdium modestum — LEVITON 1964: 410 Oxyrhabdium modestum — HALLERMANN 2007 Oxyrhabdium modestum — WALLACH et al. 2014: 517

Taxonomic and source notes

Synonymy: GÜNTHER 1873 and LEVITON 1964 list Rhabdosoma leporinum as a synonym of Stenognathus modestus DUMÉRIL & BIBRON. Phylogenetics: The genus Oxyrhabdium has not been unambiguously assigned to any particular snake family although Zaher et al. 2019 showed that it (as represented by DNA sequences from O. leporinum) is more closely related to Psammophiidae and Prosymnidae than to any other family. Distribution: the original type locality, “Java” is in error. Type species: Sténognathus modestus DUMÉRIL & BIBRON 1854 is the type species of the genus Oxyrhabdium BOULENGER 1893.

References attached to this record

2026

The Reptile Database — species checklist, 17 June 2026

Uetz, P.; Freed, P.; Aguilar, R.; Reyes, F.; Kudera, J.; Hošek, J. (eds.)

Open source ↗
2018

Synopsis of the Snakes of the Philippines: A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature

Leviton, A. E.; Siler, C. D.; Weinell, J. L.; Brown, R. M.

Proceedings of the California Academy of Sciences 64(14): 399–568

DOI: 10.5281/zenodo.11512589

Open source ↗
2016

The amphibians and reptiles of Mindanao Island, southern Philippines, II: the herpetofauna of northeast Mindanao and adjacent islands

Sanguila, M. B.; Cobb, K. A.; Siler, C. D.; Diesmos, A. C.; Alcala, A. C.; Brown, R. M.

ZooKeys 624: 1–132

DOI: 10.3897/zookeys.624.9814

Publisher-supplied full text on ResearchGate consulted; species accounts on pp. 96 and 104. Historical conservation categories not adopted as current.

Open source ↗
n.d.

Oxyrhabdium modestum — The Reptile Database species account

Uetz, P.; Hallermann, J. et al. (editors)

Public species fields consulted for bounded biological summaries. Primary sources quoted within the database were not independently examined unless explicitly stated. The catalogue name may differ from the current source title.

Open source ↗