The thoracic groove is also known as the apodeme (i think?)
The shape and orientation of this groove can be diagnostic in a lot of situations.
Procurved
Straight/Transverse
Recurved
(Longitudinal?)
cacoseraph
Procurved
cacoseraph
Straight/Transverse
cacoseraph
Recurved
cacoseraph
Longitudinal
Quote:
Furthermore, the carapace of a recluse spider is generally flat, with a prominent anterior protuberance for the head, bordered on each side by a vague cephalic groove whose posterior juncture meets at a well-defined, longitudinal thoracic groove that extends thence to the posterior margin of the thorax
[url=http://www.bugsinthenews.com/Texas%20Spiders/Brown%20recluse%20(Loxosceles%20reclusa)%2019%20August%202007%20Ralph%20E%20%20Wichita%20Falls%20TX.htm]site[/url]
no body makes a good parser these days!
http://tinyurl.com/2knf4b
cacoseraph
aa
cacoseraph
aa
cacoseraph
aa
cacoseraph
aa
Bastian Drolshagen
hi,
straight is also called transverse. longitudinal can only be found in a few mygalomorph families (i.e. Mecicobothriidae)
cacoseraph
to save myself time when responding to your posts i am going to create a special ~acronym