katrina, your catasetum saccatum has quite unusual form of lip sack opening. What I mean is that in the internet one usually sees saccatums with a kidney-shaped orifice of whitish color (similar to the A. Holst's description in the 'World of catasetums'). Yours, on the contrary, has rather rectangular orifice of dark color (or is it just an effect of foto?). Is it a different variety of the saccatum?