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Paraguay Green Racer
Philodryas nattereri
Philodryas nattereri, also known commonly as the Paraguay green racer and the Paraguayan green racer, is a species of venomous snake in the subfamily Dipsadinae of the family Colubridae. The species is native to eastern South America.
From the article Philodryas nattereri on Wikipedia (CC BY-SA), quoted section by section
Description
Adults of Philodryas nattereri have an average total length (tail included) of 80 cm (31 in), but it can grow to a maximum total length of 1.34 m (4.4 ft). It is characterized by a medium body, a long, slender tail, a slightly prominent and obliquely truncated snout, and moderately large eyes with round pupils. Its coloring varies from brown to gray, giving it camouflage against ground foliage.
Range & habitat
The preferred natural habitats of Philodryas nattereri are open forests, fields and cerrado.
Wikipedia: “Habitat”
What it does
Philodryas nattereri is a fast snake with terrestrial habits, although recent studies have shown that this species can use arboreal environments with high efficiency. It is active during the day and can be quite aggressive when threatened. P. nattereri is opisthoglyphous (rear-fanged), and due to this dentition, it has difficulty injecting venom into large prey.
Wikipedia: “Behavior”
Toxicity
The venom of Philodryas nattereri is quite active. It can cause dermo necrosis, myonecrosis, and hemorrhagic activity, resulting in mast cell degranulation, muscle damage and inflammation. Studies with rats have shown that venom from this species is capable of causing bleeding in different organs and morphological alterations. The venom of this species appears to be as active as that of Philodryas olfersii, and has a protein content of 863.9 μg, which corresponds to 86.3% of the entire venom.
Wikipedia: “Venom”
In human culture
The specific name, nattereri, is in honor of Austrian naturalist Johann Natterer.
Wikipedia: “Etymology”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Philodryas nattereri in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 29104.