8D1557AE-74DD-429C-8060-D801109E7239.jpeg
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8D1557AE-74DD-429C-8060-D801109E7239.jpeg

Around 2 inches (DLS) Acanthoscurria geniculata

Unsure if spermatheca or male accessory organs. The round-shaped things are flippable, please check this short video: https://youtube.com/shorts/mxunztYXk5U?feature=share

Thank you for the help
At this size it can be tricky to tell in some species, because sometimes the spermathecae are not fully developed. At this size, I'm inclined to say female, but I'm not 100% sure. Check its next molt to be sure.
 
From what I've seen, when there's a very evident gonopore (the dark-colored slit between the 2 bumps) and little to no development of a uterus externus (aka "flap"), then what you're seeing are male accessory organs. Definitely worth continuing to check molts to see how they develop, though.
 

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Category
Spermathecae sexing (Molts)
Added by
vounti
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Device
Apple iPhone 12
Aperture
ƒ/1.6
Focal length
4.2 mm
Exposure time
1/50
ISO
125
Flash
Off, did not fire
Filename
8D1557AE-74DD-429C-8060-D801109E7239.jpeg
File size
1.7 MB
Date taken
Sun, 18 December 2022 8:19 PM
Dimensions
4032px x 3024px

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