James T. Vader wrote:
So all of Duane's aliens, with the ' in their names and the inclusion of Horta's and crystalline spiders, was it all shot to hell when in The Chase it was established that most life in the Alpha and Beta Quadrants are humanoid?
How? The whole point of the Horta (and, in TNG, the "microbrains") was that beings based on silicon were something rare.
And Duane's crystalline spider turned into the Traveler when she and her writing partner (and the TNG staff writers) adapted remnants of "The Wounded Sky" for "Where No One Has Gone Before".