JBarstool said:What frightens me most about your question is that part about "...one of my reptiles..." implying there are more. But I will try to help answer your question anyway, with the following caveat:
I am no expert on houseplants (yes I know Philodendrons are not houseplants in their native environment); in fact I do not grow any houseplants. I have plenty of outdoor plants to kill without bringing my battles indoors.
Based on the fairly pronounced leaf midrib I might lean toward your plant being an Epipremnum aureum, or commonly, Pothos.
One good way to distinguish between the two is to note how your plant produces new leaves.
Does the new growth simply unfurl from a new leaf or does it extend on the vine in a cataphyll? A cataphyll is a small, modified leaf that eventually appears papery and brown before falling off leaving a new true leaf in its place; this growth is associated with philodendrons. Not a good description of the process, but I'm no wordsmith.
That being said, both plants are members of the same family, Araceae so I have no idea whether one, both or neither are harmful to reptiles. Which is something else I would be inclined to keep outdoors.
Hope this helps - but I'd be surprised if it does. (Tongue planted firmly in cheek)
I believes you have two different plant there, the one with geniculum and collecting marginal veins is an Anthurium, (a bird nest type).
The vine one without geniculum is a philodendron, (could be P hederaceum, or something else)
The commonly called photos is actually Epipremnum aureum. Epipremnum aureum was in pothos genus at one times, but now remove into Epipremnum genus, however common names prevails, some Scindapsus (pictus) is also called pothos
Cathaphyl present both in Philodendron and almost in all Anthurium with very few exception, but absent in Epipremnum. However cataphyls are only present in tips of the plants, and in many cases dropped immediately after leaves unfurls. so if it is non present it is not necessarily exclude Philo or Anthurium, but it will be present in growing tips