So I've found out that hemipenes implicates animal penis, which according to the wiki description says it is "used for penises that exclusively belong to animals".

However, pictures such as post #1969681, post #2091867 or post #1983162 are all tagged with "animal penis", even though they all have the complete opposite with an humanoid penis because of this implication.

IMHO either the implication should be changed to implicate "animal genitalia" instead, so images with accurate animal penis can be still found; or the description for hemipenes is changed so it's used only for pictures where they have penises based on real life animals (such as those from snakes or sharks) and start using "multi_penis" for the rest.

Those are mistagged, and belong in diphallism instead of hemipenes.

True. However, post such as post #1851382 or post #1959405 still matches the definition of hemipenes (they are "2 penises in the pelvic area that converge and visibly attach to the same base were they emerge from the body", as per wiki), yet still isn't accurate genitalia to be tagged as animal penis.

So either the definition is updated to reflect that it should be used only on real animal penises, or the implication should be updated.

I see. That got edited in without discussion couple of years ago. I'd consider the last admin edit (https://e621.net/wiki_page_versions/25294) to be the valid one, since that's why those tags were split in the first place: hemipenis for actual hemipenes (used in same way as other animal penis tags, such as canine_penis), diphallism for multi-penis such as two humanoid penises.

And in many cases of hemipenis you can't actually see that they're connected but they're regardless identifiable as hemipenes by the appearance, so that requirement doesn't make much sense for the tag.

Two human penises on the same person is still technically not hemipenes. Its diphallus. To be hemipenes they must be specifically intervonnected and have mechanisms for which one is used at a time.

Diphallus individuals have both harden and ejaculate and urinate at the same time as there are no special mechanism. Its just an extra penis.

So yes. Hemipenes are always animal penis.

I can think of only one major exception, hypothetical. People modify their body. So a human penis could be split? Not a pretty thought, but seems possible. XD

alphamule said:
I can think of only one major exception, hypothetical. People modify their body. So a human penis could be split? Not a pretty thought, but seems possible. XD

That would just be split penis or "bifurcation" still not hemipenes.

demesejha said:
That would just be split penis or "bifurcation" still not hemipenes.

*Had no idea that was a tag* *Didn't think to check* Hehe

I have updated the wiki descriptions so hemipenes is used only for the real deal found in lizards and snakes (so the animal penis implication makes sense), and diphallism is used for the everything else.

I've also manually re-tagged several hundreds of shark and snake pictures with diphallism, but there's still some considerable cleanup to do.

These are ancients tags, and have needed a rework for quite a while.

I know that diphallism is a RL genetic condition, but would there be any actual problems with just renaming that tag as 2_penises, to match the other penis count tags? (2_penises is currently aliased to multi-penis.)

While hemipenes would be left for the snake/lizard/etc animal penis type.

Sounds fine to me.