Following is a list of marine reptiles, reptiles which are adapted to life in marine or brackish environments.
Extant
The following marine reptiles are species which are currently extant or recently extinct.
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- Crocodylus acutus (American crocodile)
- Crocodylus porosus (Saltwater crocodile)
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- Amblyrhynchus cristatus (Marine iguana)
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- Varanus indicus (Mangrove monitor)
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- Acrochordus arafurae (Arafura filesnake)
- Acrochordus granulatus (Little filesnake)
- Acrochordus javanicus (Javan file snake)
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- Farancia abacura (Mud snake)
- Farancia erythrogrammus (Rainbow snake)
- Helicops angulatus (Brown-banded water snake)
- Helicops infrataeniatus
- Helicops scalaris
- Hydrops triangularis
- Leptodeira rubricata (Costa Rican cat-eyed snake)
- Pseudoeryx relictualis
- Tretanorhinus nigroluteus
- Tretanorhinus variabilis
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- Grayia smythii (Smith's African water snake)
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- Cerberus australis
- Cerberus dunsoni
- Cerberus microlepis
- Cerberus rynchops
- Cerberus schneiderii
- Myrrophis bennettii (Bennett's mud snake)
- Myron karnsi
- Myron resetari
- Myron richardsonii
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- Aipysurus eydouxii (Spine-tailed sea snake)
- Aipysurus laevis (Olive sea snake)
- Disteira major (Olive-headed or greater sea snake)
- Disteira nigrocincta
- Disteira walli (Wall's sea snake)
- Hydrophis belcheri (Faint-banded sea snake, Belcher's sea snake)
- Hydrophis bituberculatus (Peters' sea snake)
- Hydrophis brooki
- Hydrophis caerulescens (Dwarf sea snake)
- Hydrophis cantoris
- Hydrophis cyanocinctus (Annulated sea snake, blue-banded sea snake)
- Hydrophis fasciatus (Striped sea snake)
- Hydrophis gracilis (Graceful small-headed sea snake, slender sea snake)
- Hydrophis inornatus (Plain sea snake)
- Hydrophis klossi (Kloss' sea snake)
- Hydrophis lapemoides (Persian Gulf sea snake)
- Hydrophis mamillaris (Bombay sea snake)
- Hydrophis melanocephalus (Slender-necked sea snake)
- Hydrophis obscurus (Russell's sea snake)
- Hydrophis ornatus (Ornate reef sea snake)
- Hydrophis semperi (Garman's sea snake)
- Hydrophis spiralis (Yellow sea snake)
- Hydrophis stricticollis (Collared sea snake)
- Hydrophis viperinus
- Lapemis curtus (Shaw's sea snake)
- Lapemis hardwickii (Hardwicke's spine-bellied sea snake)
- Laticauda colubrina (Colubrine sea krait, yellow-lipped sea krait)
- Laticauda laticaudata (Blue-lipped sea krait)
- Thalassophis anomalus (Anomalous sea snake)
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- Dermochelys coriacea (leatherback sea turtle)
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- Caretta caretta (Loggerhead sea turtle)
- Lepidochelys kempii (Kemp's ridley)
- Lepidochelys olivacea (Olive ridley)
- Chelonia mydas (Green sea turtle)
- Eretmochelys imbricata (Hawksbill sea turtle)
- Natator depressus (Flatback sea turtle)