Horn of Ceratogyrus marshalli

Deta

Arachnopeon
Joined
Aug 22, 2019
Messages
7
Hello, after how many cm of legspan does a female of Ceratogyrus marshalli begin to form the 'horn ?
thank you so much.
 

Chebe6886

Arachnobaron
Active Member
Joined
Apr 24, 2018
Messages
506
It is such a hard habit to shake.
Once you start measuring in units based on body part and everyday objects you can't imagine it differently. Lol
Yeh I’m in science/healthcare field so I use metric all the time but still can’t help seeing things in arbitrary American units of measure. I really hope we stop teaching that crap if I have kids. Although I won’t ever be sure how tall or how much they weigh
 
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Liquifin

Arachnoprince
Active Member
Joined
May 30, 2017
Messages
1,222
Leg span may vary when horns become relevant, but usually at 2.5''-3'' (6.4cm-7.5cm) is when it usually becomes distinguishable in my experience. Like what @viper69 stated, it usually starts with more of a button then becomes more of a horn as it gets larger for females. But for males, it's usually just a button all the way in its lifespan whereas the females get horns. This doesn't really apply to C. darlingi as males and females get horns, so these examples are for C. marshalli only.

Examples of buttons and horns (males and females):

C. marshalli Juvenile Male (Freshly Molted) 2.5''-3'' (6.4cm-7.5cm) Legspan
IMG_1206.JPG

C. marshalli Mature Male (Freshly Molted)
IMG_1479.JPG

Juvenile Female 2.5''-3'' (6.4cm-7.5cm) There's a horn, but hopefully it's noticeable compared to the male example above.
IMG_1210.JPG

I don't have any mature size female C. marshalli yet, but they're sub-adults at the moment (about at 4''+ or 10cm+ in leg span) so their next molt should be their mature size molt.
 

DomGom TheFather

Arachnobaron
Active Member
Joined
Apr 26, 2020
Messages
343
I feel like I have to show mine, now. Lol
I actually took this picture this morning and posted it.
She is just over the two inch mark but it was noticable before her last molt. (It's incorporated into the webbing on the right. I didn't take it.)
20200802_064843.jpg
 
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