Tropidonophis spilogaster

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Tropidonophis spilogaster, commonly known as the northern water snake or Boie's keelback, is a keelback snake in the Colubridae family. It lives in the Philippines on the islands of Catanduanes, Polillo, and Calayan, and in Bataan province on Luzon. Its conservation status is Least Concern (IUCN 3.1). Scientific classification: Kingdom Animalia; Phylum Chordata; Class Reptilia; Order Squamata; Suborder Serpentes; Family Colubridae; Genus Tropidonophis; Species spilogaster. Binomial name Tropidonophis spilogaster (Boie, 1827). Synonyms include Tropidonotus spilogaster (Boie, 1827) and Tropidonotus crebripunctatus (Wiegmann, 1835). The snake’s venom toxicity is unknown due to lack of study.