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Help Id. Amazonian snakes! (1 Viewer)

Glimmer

Well-known member
First from Ecuador, Amazonia. False equis?

Second from Pantanal, Brasil (not Amazonian)

Third from Bolivia, near Rurrenabaque

Thx!
 

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Andy Adcock

Well-known member
England
1 Does look like a Fer-de-Lance mimic but the rounded pupil gives it away as not that species.

2 One of the snail eating species or a Treesnake?

3 Seems to have tiny eyes, similar to Hydromorphus but no idea if they occur here.

There is a huge shortage of literatute in this area for snakes.
 
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Glimmer

Well-known member
1 Does look like a Fer-de-Lance mimic but the rounded pupil gives it away as not that species.

2 One of the snail eating species or a Treesnake?

3 Seems to have tiny eyes, similar to Hydromorphus but no idea if they occur here.

There is a huge shortage of literatute in this area for snakes.

First should be Xenodon rabdocephalus, I think, cause of the round pupile and Fer de lance look like
 

Glimmer

Well-known member
Add another one from Pantanal
 

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SteveTS

Well-known member
Add another one from Pantanal


This looks good for Chironius quadricarinatus sp., eight upper labials, two posterior temporals, general appearance and locality encouraging.

A diverse and challenging genus. There is a wealth of (highly variable) pay-as-you-go literature out of which this may help : Phylogeny, diversity and biogeography of Neotropical sipo snakes (Serpentes: Colubrinae: Chironius).

Interesting thread, and thanks for posting, I'll have another look as time allows.

Regards, Steve
 

Bitis

Well-known member
Austria
Here is what I think they are, I'm not a 100% sure though:

1. I would agree with Xenodon rabdocephalus

2. It's a Thamnodynastes, maybe chaquensis

3. Helicops leopardinus/polylepis

4. I would agree with Chironius quadricarinatus
 

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