black and yellow snake in my yard.

[Patrick Long]

Is a ribbon snake poisoness??

No snake is Poisonous...they are venomous

Poison is ingested, venom is INJECted

[mainbutter]

Just in case anyone gets worried about "the scary venomous colubrids of north america" (lol), I've been bitten by plenty of garters and never had a reaction.. not even minimal swelling. I simply made sure to wash the bite area and apply some neosporin, because any animal bite can introduce infection.

[Skiploder]

No snake is Poisonous...they are venomous

Poison is ingested, venom is INJECted

What if you drank the venom? Is it then poison?

[Patrick Long]

What if you drank the venom? Is it then poison?

Hahahaha

[aSnakeLovinBabe]

Thamnophis are not opistoglyphic - they are aglyphic.

In other words, they are not "rear-fanged" in the traditional sense, but they are definitely venomous and some species do have nominally enlarged rear teeth - vagrans being a good example.

Remember, most colubrids are venomous but only about a third of those are actually rear-fanged.

t. s. sirtalis "florida blue" have some of the best looking "enlarged rear teeth" (i don't type it this way because the phrase rather annoys me, I have always been taught "rear fangs") I have seen on a garter.

[DutchHerp]

No snake is Poisonous...they are venomous

I know of at least one Asian colubrid that has poisonous neck glands.

[Skiploder]

t. s. sirtalis "florida blue" have some of the best looking "enlarged rear teeth" (i don't type it this way because the phrase rather annoys me, I have always been taught "rear fangs") I have seen on a garter.

Some species of garters have nominally enlarged rear fangs. That does not make them opistoglyphs like hydrodynastes, rhamphiophis, boiga, etc.

An opistoglyph not only has enlarged rear fangs, but delivers venom via a grooved channel in them. It is an evolutionary delivery step above having rear fangs and no channel.

The word glyph means carved or grooved channel............an aglyph lacks that channel.

So while a boiga, for example, has grooves in those enlarged rear teeth to make the venom delivery more effective, thamnophis does not.

[Skiploder]

I know of at least one Asian colubrid that has poisonous neck glands.

Ring neck snakes also utilize poison.

[aSnakeLovinBabe]

I know of at least one Asian colubrid that has poisonous neck glands.

would that be the red necked keelback? Rhabdophis Subminiatus?


And no, I didn't mean that garters are rear fanged like other rear fanged animals some of which are highly toxic, what I meant was, you can't deny that they have rather large rear teeth and there are toxins in there!!! That is all I was saying!

[Skiploder]

would that be the red necked keelback? Rhabdophis Subminiatus?


And no, I didn't mean that garters are rear fanged like other rear fanged animals some of which are highly toxic, what I meant was, you can't deny that they have rather large rear teeth and there are toxins in there!!! That is all I was saying!

I thought it was R. Tigrinus but I am getting old and may be wrong.

As to thamnophis having enlarged rear fangs and being venomous - you are 100% correct.