The Marble-toothed snake-eel (Pisodonophis daspilotus, also known as the Blunt-toothed snake eelCommon names of Pisodonophis daspilotus at www.fishbase.org.) is an eel in the family Ophichthidae (worm/snake eels).Pisodonophis daspilotus at www.fishbase.org. It was described by Charles Henry Gilbert in 1898.Jordan, D. S. and B. W. Evermann, 1898 (26 Nov.) [ref. 2445] The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America north of the Isthmus of Panama. Part III. Bulletin of the United States National Museum No. 47: i-xxiv + 2183a-3136. It is a marine, tropical eel which is known from the eastern central and southeastern Pacific Ocean, including Costa Rica, Colombia, Panama and Ecuador.Pisodonophis daspilotus at www.fishbase.org. It dwells in shallow waters at a maximum depth of , and inhabits sand and mud sediments and mangroves. Males can reach a maximum total length of .

The IUCN redlist currently lists the Marble-toothed snake eel as Near Threatened, due to the decline in mangroves in its range of habitat. The population of the Marble-toothed snake eel is estimated to have declined by 25% over a course of 10–15 years.

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