Sexing Aneides lugubris

[Warren Spencer]

Dear forum members,
Still finding it incredibly difficult to determine sex in this species. If anyone has any tips or tricks or images to help I would be grateful
Many thanks
Warren

 

[otolith]

They can be very hard to sex until they mature. Mature males have much larger, wider more "angular" heads than females and are generally much skinnier. In my experience sub-adult males will have larger heads as well.

This website has great photos of both sexes and may give you a better idea of what to look for.

Arboreal Salamander - Aneides lugubris

 

[Warren Spencer]

Thanks Otolith,
Im still a little unconvinced by the images on this website, sort of noteworthy that an adult female is not specifically mentioned.
It would be great if someone could post a high def image of a 100% adult male and female head, so I can really see the differences?
I suspect a lot of sex determination is done behaviourally, but a cast iron morphological method would be great.
Cheers
Warren

 

[otolith]

females (even though not stated in the caption) http://www.californiaherps.com/salamanders/images/alugubrissamtnsjjones.jpg
http://www.californiaherps.com/salamanders/images/alugubrisoak.jpg

males: http://www.californiaherps.com/salamanders/images/alugubrismo4112.jpg
http://www.californiaherps.com/salamanders/images/alugubrisbr052.jpg

male and female together for comparison

CalPhotos: Aneides lugubris; Arboreal Salamander

and another good archive of photos for you

CalPhotos