Acrochordus granulatus
- Type
- Illustration
- Credit
- Mario Lutz
- Usage rights
- Copyright Mario Lutz. Authorised for display in this atlas; no third-party reuse licence granted.
- Evidence status
- Illustration; not a specimen or occurrence record.
Acrochordidae · Global account with Philippine editorial coverage
Acrochordus granulatus(SCHNEIDER, 1799)
An aquatic fish-eater found in coastal habitats and, in the Philippines, freshwater Lake Taal. Its ecology is distinct from that of the venomous elapid sea snakes.
Literature updated 2026-10-07 · Editorial review pending
Explore the island records ↓The illustrated collection
Adult · study plate
Acrochordus granulatus
Image to followJuvenile · study plate
Acrochordus granulatus
Image to followLife stages will be labelled from the contributor’s information. Images alone do not establish identification or a locality record.
Media provenance
One species · Across borders
Explore the recorded countries and islands. Select a highlighted area to see its distribution evidence.
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Shading identifies recorded countries or named islands, not continuous habitat coverage. Uncoloured areas do not establish absence.
Natural Earth · 1:50m · public domain. Small islands may lack an outline.
Explore the distribution
Select a highlighted area to see its status, island records and sources. Each country and island links to the same shared species collection.
Use “Worldwide records” to include distant introduced and uncertain records in the map view.
Source explicitly lists Indonesian occurrence; no contrary country-level exclusion in Comment.
A closer look
Uses estuaries, muddy shores and mangroves. A Thai study examined 119 animals from Phangnga Bay.
Literature documented · Repository abstract
Thailand, 2002; comparative habitat data.
Gobies occur in the diet of the Lake Taal population, overlapping with prey of Hydrophis semperi.
Literature documented · Abstract; Table 1
Philippine gut-content study.
Shared prey does not demonstrate competition.
Developing embryos were present in January and full-term embryos in May in the Phangnga Bay sample. Young were first captured in June. Larger mothers carried more offspring.
Literature documented · Repository abstract
Thailand, January–December 2002.
This seasonal sequence is not a Philippine breeding calendar.
The atlas records Acrochordus granulatus from these named Philippine areas: Luzon, Palawan, Panay, Cebu, 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.
Acrochordus granulatus is retained in the atlas’s dated checklist under Acrochordidae. The authority is (SCHNEIDER 1799). 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.
China (Hainan), Australia (along the coast of Northern Territory, Queensland, Western Australia) Indonesia (Ambon, Borneo, Flores, Irian Jaya, Java, Bali, Jobi, Schouten, Sulawesi, Sumatra, Ternate, Timor, We, Komodo); Timor-Leste; Cambodia; India (Kerala, Gujarat, including Nicobar Islands); Malaysia (Malaya and East Malaysia); Myanmar (Burma); Philippines (including Palawan: Calamian Islands, Panay, Luzon, Cebu); Singapore; Sri Lanka, Thailand; Vietnam. Papua New Guinea (including many satellite islands), Solomon Islands Type locality: not given (fide MANTHEY & GROSSMANN 1997); “Madras, India” (fide SANG et al. 2009)
The atlas records Acrochordus granulatus from these named Philippine areas: Luzon, Palawan, Panay, Cebu, 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.
Living with wildlife
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 aidSpecies record
Range noteCountry/island text is not a range polygon or locality record.
China (Hainan), Australia (along the coast of Northern Territory, Queensland, Western Australia) Indonesia (Ambon, Borneo, Flores, Irian Jaya, Java, Bali, Jobi, Schouten, Sulawesi, Sumatra, Ternate, Timor, We, Komodo); Timor-Leste; Cambodia; India (Kerala, Gujarat, including Nicobar Islands); Malaysia (Malaya and East Malaysia); Myanmar (Burma); Philippines (including Palawan: Calamian Islands, Panay, Luzon, Cebu); Singapore; Sri Lanka, Thailand; Vietnam. Papua New Guinea (including many satellite islands), Solomon Islands Type locality: not given (fide MANTHEY & GROSSMANN 1997); “Madras, India” (fide SANG et al. 2009)
Names through time
Hydrus Granulatus SCHNEIDER 1799: 243 Acrochordus fasciatus SHAW 1802 Pelamis granulatus — DAUDIN 1803 Chersydrus [fasciatus] — CUVIER 1817: 532 Chersydrus granulatus — MERREM 1820: 138 Acrochordus fasciatus — RAFFLES 1822 Hydrus granulatus — RAFFLES 1822 Acrochordus granulatus — CANTOR 1847 Chersydrus annulatus GRAY 1849 Chersydrus fasciatus — DUMÉRIL & BIBRON 1854: 41 Chersydrus fasciatus — JAN 1863 Chersydrus granulatus — ANDERSON 1872 Chersydrus granulatus — BOULENGER 1893: 174 Chersydrus granulatus — DE ROOIJ 1917: 43 Chersydrus granulatus — WALL 1921: 79 Chersydrus granulatus — TAYLOR 1922 Chersydrus granulatus granulatus — LOVERIDGE 1938: 209 Chersydrus granulatus luzonensis LOVERIDGE 1938: 209 Acrochordus granulatus granulatus — HAAS 1950 Chersydrus granulatus — GRUBER in GRZIMEK 1970 Chersydrus granulatus — GRANDISON 1978: 285 Acrochordus granulatus — MCDOWELL 1979: 79 Acrochordus granulatus — MANTHEY & GROSSMANN 1997: 296 Acrochordus granulatus — COX et al. 1998: 17 Acrochordus granulatus — GAULKE 1999 Acrochordus granulatus — MCDIARMID, CAMPBELL & TOURÉ 1999: 227 Chersydrus granulatus — SHARMA 2004 Acrochordus granulatus — MURTHY 2010 Acrochordus granulatus — COX et al. 2012: 67 Acrochordus granulatus — WALLACH et al. 2014: 7 Acrochordus granulatus — EIPPER & EIPPER 2024: 27
Distribution: Does not occur in Pakistan fide KHAN (pers. comm.). There is one record from Japan (Amami-oshima Island, Ryukyu Archipelago); however, this is dubious and the specimen may have been introduced (Takata et al. 2023, I. Fukuyama, pers. comm., 22 Sep 2024). Not in Bangladesh fide Al Haidar et al. 2025. Genome: Roberts et al. 2024.
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
Garcia, V. O. S.; Papa, R. D. S.; Briones, J. C. A.; Mendoza, N.; Okuda, N.; Diesmos, A. C.
Asian Herpetological Research 5(4): 255–262
DOI: 10.3724/SP.J.1245.2014.00255
Author-uploaded full text consulted; gut contents and stable isotopes are distinguished.
Wangkulangkul, S.
PhD thesis, Chulalongkorn University
DOI: 10.58837/CHULA.THE.2004.977
Repository abstract consulted; 119 snakes sampled in 2002. Thai comparative data.