Advertisement I'm giving a presentation on South American tarantulas tomorrow at a Geography Day event at my local library. I know both the common and scientific names for all my little friends - 15 of whom will be accompanying me - but there are a couple that I could use a little help with on the pronunciations. The first is my Theraphosa stirmi. Is it pronounced like "stir-my" or "stir-mee"? I've heard it both ways. On Henry Beechhold's pronunciation key, T. stirmi is not listed - but T. blondi is, and the pronunciation given for that is with the long e sound at the end, as are a number of other species whose names end in a terminal "i." That's how I'd been pronouncing it myself, but at the show where I purchased the T. stirmi last week, the dealer was insisting that it's supposed to end in a long "i" sound instead. The other is my G. pulchripes. (I can actually pronounce that part just fine.) The question is with the common name, Chaco Golden Knee. Is it pronounced "Chayco," "Chacko," or "Chalko"? (Yes, I know - scientific names are generally preferable - but when working with children, I find the common names are better received, though I also provide the proper names.) Thank you!