Elapidae · Philippine record
Calliophis bilineatus(PETERS 1881)
Length: Examined series: 9 females and 18 males; these are sample maxima, not typical adult lengths.
p. 97, Table 3
Venom: Venomous Philippine coralsnake. Species-specific clinical effects require separate assessment.
p. 89, Introduction; C. salitan venom apparatus, pp. 96–97
Venom effects and medical significance are different from toxicity rankings. Do not handle a snake on the basis of this summary.
Calliophis bilineatus is a Elapidae snake included in the Philippine checklist. Its atlas account links 2 named island or island-group records to the source literature.
Literature updated 2026-10-07 · Editorial review pending
Explore the island records ↓Species portrait
Calliophis bilineatus
Image to followThe illustrated collection
Adult · study plate
Calliophis bilineatus
Image to followJuvenile · study plate
Calliophis bilineatus
Image to followLife stages will be labelled from the contributor’s information. Images alone do not establish identification or a locality record.
Media provenance
Contributor images are forthcoming. Photographs and illustrations will retain their individual credits, permissions and evidence notes.
A closer look
The species account records egg-laying reproduction. A verified Philippine clutch-size range, incubation interval and breeding calendar are not established here.
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.
The atlas records Calliophis bilineatus from these named Philippine areas: Palawan, Calamian. These are literature areas rather than a continuous range boundary.
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.
Calliophis bilineatus is retained in the atlas’s dated checklist under Elapidae. The authority is (PETERS 1881). Earlier names and the original source notes are preserved below for comparison.
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
Documented islands: gold · island groups: dashed circles
Island-level records · not continuous habitat coverage. Dashed circles locate groups, not individual observations.
Philippine distribution
Select an island to read its distribution record and sources. Uncoloured islands are not evidence of absence.
Philippines (Palawan: Calamian Islands) Type locality: Palawan, Philippines
The atlas records Calliophis bilineatus from these named Philippine areas: Palawan, Calamian. 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 ↗
Calliophis bilineatus — The Reptile Database species account ↗
Living with wildlife
Venomous · 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 aidSpecies record
Range noteCountry/island text is not a range polygon or locality record.
Philippines (Palawan: Calamian Islands) Type locality: Palawan, Philippines
Names through time
Callophis bilineatus PETERS 1881 Adeniophis bilineatus — BOULENGER 1894: 83 (?) Doliophis bilineatus — BOULENGER 1896: 404 Maticora intestinalis bilineata — WELCH 1994: 75 Calliophis intestinalis bilineata — NGUYEN et al. 2009 Calliophis bilineata — LEVITON et la. 2014 Calliophis bilineatus — BROWN et al. 2018 Calliophis bilineata — WEINELL et al. 2019 Maticora bilineata — WALLACH 2025
Venomous!
Uetz, P.; Freed, P.; Aguilar, R.; Reyes, F.; Kudera, J.; Hošek, J. (eds.)
Leviton, A. E.; Siler, C. D.; Weinell, J. L.; Brown, R. M.
Proceedings of the California Academy of Sciences 64(14): 399–568
Brown, R. M.; Smart, U.; Leviton, A. E.; Smith, E. N.
Herpetologica 74(1): 89–104
Table 3 gives total-length maxima of examined series; C. salitan venom apparatus described on pp. 96–97.
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.