Point being, why would someone think that a urinophilic fish would follow a stream of urine into a woman’s vagina, unless they were under the impression that that’s where the pissy stream originates?
The anterior wall on the OUTSIDE of the vagina, not the inside. Otherwise, a woman wouldn’t be able to urinate with an inserted tampon. The urethra and the vagina have two separate and distinct vulvar openings; the vajayjay and the urethra aren’t roommates or anything. They’re next-door neighbors.
The text book is describing the anatomical path of the passage, which runs on the interior of the human body. Just like the make urethra runs up the penis and through the prostate, which is next to the colon. And you know how doctors check the prostate - it doesn’t involve sticking a finger up the penis. The female urethra opening is not within the vagina, though it is within the labia.
Note the use of “or”. This implies that he realized that the two are alternatives. If he had used “and”, I’d agree with you and wonder about Herman’s grasp of female anatomy.
I read that as “the urethra [of a male] or into the vagina [of a female]”.
Diaspora’s point is well taken – there is a marked lack of any attempt to distinguish between the two openings. But I think emcee2k and April R have the right of it.
Powers &8^]
What the candiru track is ammonia/uric acid emissions to locate their target, with the goal of finding fish on which to attach themselves. The urine just leads them to the general area and they burrow in to the softest, most blood-filled flesh available. While they have to burrow inside the urethra to hit that motherload of fleshy blood-filled tissue in the penis, the labia and vagina would provide a much larger, easier target right next to the urethra in females. So… try not to think about it too much, either way. I imagine they would burrow in to any fleshy orifice, it’s just that the urethra is the one that is emitting a scent trail to attract them.