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View Full Version : Dissection on Rhacodactylus egg



Marlies
11-14-2006, 09:53 AM
Hello Everybody,

On July 30 this year, one of my R. ciliatus females laid two eggs. The first one hatched October 10th. This baby looked OK, but was a bit small. Because of this, I did not think it was weird that the other egg didn't come our right away. Perhaps it was still growing a bit.

I watched the egg everyday, and I saw that the egg was deteriorating fast. Today, on November 14th, I decided to take this opportunity to learn something and photograph the process so that other people might can learn something of it to. Since it was obvious that this egg would never hatch, I decided to do a "dissection" on the egg.



Photo 1: The egg obviously looks bad
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_012.jpg

Foto 2: The egg and my "tools"
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_022.jpg

Foto 3: You can see quite clear that the egg is build up with multiple layers. On the pictures following this one, you will see that the egg is build up in thee layers.

http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_032.jpg

Foto 4: Large part of the shell pealled of
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_042.jpg

Foto 5: The three layers clearly vissible
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_052.jpg

Foto 6: Differant corner
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_062.jpg

Foto 7: Ever wonderd how those baby's can fit in such a small egg? Well, this is how...
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_072.jpg

Foto 8: Front end of the animals. You can clearly see the enlarged eyes and strange form of the head.
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_082.jpg

Foto 9: Baby outside of the egg.
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_092.jpg

Foto 10:: Strange looking tail
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_102.jpg

Foto 11: Detail of the head. The head had a strange form. The eyes are enlarged and swolen.
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_112.jpg

Foto 12: Last picture.
http://www.rhacodactylus.nl/Artikels/Front/Ei/ei_dis_122.jpg

Joe Farah
11-14-2006, 10:25 AM
Now that is a contribution! I can't tell you how much I appreciate you taking the time to photograph and post the pics of that.

If you're not currently working in one of the sciences - you should!

Very interesting stuff. Thanks again for sharing.

Tariq Stark
11-14-2006, 11:01 AM
Very nice, ofcourse, Marlies! I'd wish I had a camera (and the skills to use it) to document my dissections in the past! Very usefull pictures and an excellent contribution on rhacodactylus.nl :D

Tariq

Ken Bartenfeld
11-14-2006, 11:05 AM
I hate when this happens. I just had this happen to two of my agricolae eggs. Gotta keep it humid enough in there so they can slit through the eggs. Maybe it was just a problem with this clutch. Just seems the eggs were a little harder then usual.

Very descriptive post. Thanks Marlies!

Marlies
11-14-2006, 11:32 AM
I hate when this happens. I just had this happen to two of my agricolae eggs. Gotta keep it humid enough in there so they can slit through the eggs. Maybe it was just a problem with this clutch. Just seems the eggs were a little harder then usual.

Very descriptive post. Thanks Marlies!

The shell was not hard at all. So actually, I'm glad that it didn't hatched.
Offcourse healty baby's are prefered, but it is normal that you sometimes have a bad egg.... And you can only learn from those! So I don't hate it when this happens.... I DO hate it when the baby's are born like this... And die later.


@Joe Farah: Thanks a lot! That is a huge compliment!
I'm studying Biologie & Medical Lab science

Justin
11-14-2006, 12:37 PM
Very informaitve post. The physical abnormalities you pointed out may not have been deformities inherent with the gecko but possibly due to the growth stage at which the gecko died. Also, especially with regards to the eyes, possibly due to the length of time that has passed since it died and pressures of the egg.

Marlies
11-14-2006, 01:24 PM
Very informaitve post. The physical abnormalities you pointed out may not have been deformities inherent with the gecko but possibly due to the growth stage at which the gecko died. Also, especially with regards to the eyes, possibly due to the length of time that has passed since it died and pressures of the egg.

I already said the same thing about the eyes. But the rest of the body really are physical abnormalities. The animal was completely developed. It was already in pre-shed.

firereptiles
11-14-2006, 01:55 PM
Very nice detailed pics! Thanks for sharing & sorry for your loss.

Just a couple weeks ago 2 of my crested eggs also didn't make it out.
One of the dead gecko only have 1 eye and deformed mouth. I'm going to post some pics in a separate topic.

You did a great job dissecting the egg layer by layer like that.
When I opened my egg I was afraid to puncture the body inside, I have to cut it very very slow.