Guessing the size of a tarantula?

antinous

Pamphopharaoh
Joined
Mar 28, 2013
Messages
1,464
So I'm pretty horrible at guessing the size of Ts that I have. Thought that it would be important to get within a 'ball park' range when looking to sell some in the future. For example take one of my P. cancerides, how large would you say it is (next to a quarter) I'm guessing maybe around 2"-2.5"?:
14102803_10210705646701912_2011843939241007199_o.jpg
 

mistertim

Arachnobaron
Joined
Sep 4, 2015
Messages
551
The diameter of a quarter is just about an inch so I'd estimate between 1.5 and 2 inches DLS.
 

viper69

ArachnoGod
Old Timer
Joined
Dec 8, 2006
Messages
12,469
Why guess? Use a measuring tool, or is that just a crazy idea... Hahah
 

antinous

Pamphopharaoh
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Mar 28, 2013
Messages
1,464
Why guess? Use a measuring tool, or is that just a crazy idea... Hahah
Not a crazy idea haha. I just don't want to poke at some of the Ts too much. And it's kinda hard to get them to get them fully splayed out haha.
 

Tim Benzedrine

Prankster Possum
Old Timer
Joined
Apr 4, 2004
Messages
1,452
I use this. it's a snake measuring tool, but works the same for about any difficult critter to measure.
https://sourceforge.net/projects/snakemt/
i usually wait until i see that the one I am interested in measuring is in the proper stance and then covertly place the object (usually a pre-measured stick) somewhere withing reasonable distance of the spider in question. This is probably mot the best method for Old Worlds of course. So far it seems reasonably accurate.
 

mistertim

Arachnobaron
Joined
Sep 4, 2015
Messages
551
Its easier with arboreals for me because they will inevitably get onto the side of the enclosure. Then I just use a small tape measure to grab their DLS then I round up a little bit because they're most often not fully extended.
 

Abyss

Arachnoknight
Joined
Apr 15, 2016
Messages
281
I always just say they are the length of the most currwnt moult + a little. Its a ball park but you dont need to bother the T and im quite sure no one is gonna flog you for saying........
"Last moult was 3" DLS so roughly 3.5" specimen"
 

viper69

ArachnoGod
Old Timer
Joined
Dec 8, 2006
Messages
12,469
I use this. it's a snake measuring tool, but works the same for about any difficult critter to measure.
https://sourceforge.net/projects/snakemt/
i usually wait until i see that the one I am interested in measuring is in the proper stance and then covertly place the object (usually a pre-measured stick) somewhere withing reasonable distance of the spider in question. This is probably mot the best method for Old Worlds of course. So far it seems reasonably accurate.
There's also this, haven't tried it yet http://serpwidgets.com/main/measure
 
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