Pythonichthys Sanguineus (Pythonichthys sanguineus), first described by Poey, 1868 is a large fish in the family Heterenchelyidae (order Anguilliformes). Adults typically reach 41.90 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.
Body nearly cylindrical; anus situated forward of mid-body; eye extremely small, embedded, merely a tiny dot, equidistant between tip of snout and corner of mouth; anterior nostril near tip of snout, posterior nostril immediately in front of eye .: eel-like.
Behavioural data for Pythonichthys Sanguineus is currently being reviewed.
Marine; reef-associated; depth range ? - 37 m . Tropical Central Atlantic: off Cuba, Puerto Rico, and Suriname.
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