Wow, I didn't know all these species were kept in America! (Check out the title of the thread)
Coincidentally, the African darter is kept in San Diego Zoo Safari Park, though I believe the San Diego Zoo may have some as well.
There is a tiger shark at Maui Ocean Center.
San Diego Zoo Safari Park also seems to have America's only white-breasted cormorants.
Zoo Miami seems to have the only Javan cochoa.
Now, for the Dallas World Aquarium (I assure you I probably missed a/some species: Venezuelan red howler, brown-throated three toed sloth, curl-crested jay (if they have it), three-wattled bellbird, Guianan red cotinga (if they have it), scarlet cock-of-the-rock, thick-billed euphonia, resplendent quetzal, crested quetzal, tyrant hawk-eagle, Guaianan crested eagle, black-and-white hawk eagle, saffron toucanet, fire-billed aracari, many-banded aracari, prong-billed barbet (if still present), versicolored barbet, red-capped manakin, blue-crowned manakin, lance-tailed manakin, little tinamou, Antillean manatee, yapok, and even more small species behind the scenes.