When papers refer to traits as being sexually homologous do they refer to traits which are:
a) present in both sexes but can be dimorphic (e.g. body size is sexually homologous because both sexes have a measurable trait which has the same criteria in either sex, but this is frequently dimorphic)
b) present in both sexes and not different between the sexes
I have always thought it is a, but I'm now using the term in a paper and want to check. I would have thought the latter would be "homologous homomorphic traits" or something like that.
If an answer could have an example of the use(s) which make it obvious from published work that would be great!