Sexing New-Caledonian gecko's.



The gender of New-Caledonian gecko's is easy to determine when they are adult.
The males show a distinct Hemipenal bulge at the tail base by that age. The females have no bulge.
Here are some pictures to show the difference.




C. ciliatus male:



C. ciliatus female:


Usually they will get a hemepenal bulge between 10 and 15 grams, but some are a bit late and won't get them till 20 grams. You can also sex the animals before the bugle appears.
Around 5-10 grams male New Caledonian Giant geckos will show their "Pre-anal Pores" (there are some exceptions to the rule), females don't show these pores.
These pores can be seen via loup, macrolens or scanner
It can be hard to see these pores, especially when they have a lot of pattern on their belly.

This all goes for Correlophus cilatus, sarasinorum and Mniarogekko chahoua. The females of Rhacodactylus leachianus, auriculatus and trachycephalus can have a thing called "Pseudo-pores".
Those look like pores, but are more dents in the scales than real black dots.
With Rhacodactylus auriculatus the females can have real pores. They can have 3 rows of pores or less. Males always have more than 3 rows.


This is a close up picture of the area of a female C. ciliatus. As you can see there are no pores present.



This is a close up picture of the area of a male C. ciliatus. As you can see, pores are shown very clearly.





Here are 2 pictures of little Rh. leachianus.
When we took the pictures the female was 8,9 gram and the male 9.9 gram.

This is a picture the female. As you can see there are no pores present.





This is a picture of the male. As you can see, pores are shown.





This is a close up picture of the area of a female Rh. auriculatus. As you can see there are no pores present.



This is a close up picture of the area of a male Rh. auriculatus. As you can see, pores are shown very clearly.





This is a close up picture of the area of a female C. sarasinorum. As you can see there are no pores present.



This is a close up picture of the area of a male C. sarasinorum. As you can see, pores are shown very clearly.