Acanthoscurria musculosa.
Arachnid Addicted

Acanthoscurria musculosa.

The sucking stomach.
Afaik, if this structure doesn't come off in the molting process, the spider will die.
The lining of three structures are viewable in this picture: the pharynx (left), esophagus (middle), and the sucking stomach (right). But I guess it is easier for everyone to just call the whole thing the “sucking stomach?”

Fun fact about the pharynx. It is lined with micro ridges on the inside that collect particles that are too small to be trapped by the maxillae hairs but too big to be passed through to the sucking stomach. During the grooming process after eating, the collected particles are forced back through the mouth and discarded. It is a part of what goes on when a tarantula runs its palps through the fangs. ;)
 
Last edited:

Media information

Category
Acanthoscurria
Added by
Arachnid Addicted
Date added
View count
80
Comment count
1
Rating
0.00 star(s) 0 ratings

Image metadata

Device
Canon Canon EOS 60D
Aperture
ƒ/20
Focal length
100.0 mm
Exposure time
1/60
ISO
200
Flash
On, fired
Filename
_MG_7086.JPG
File size
1.7 MB
Date taken
Fri, 01 October 2021 6:40 PM
Dimensions
5184px x 3456px

Share this media

Top