[RML] Sexing desert gobies
John Grylls (jgrylls at bendigo.net.au)
Fri, 08 Aug 1997 10:49:10 GMT
I have recently purchased a nominal pair of Coward Springs desert
gobies, the "male" is about 40-45 mm in length, and the "female" is
5-10 mm shorter. They quite are similar in appearance and behaviour,
sparring and displaying on occasions.. The larger fish has a slightly
more yellow head, and I think that I can convince myself that his head
is flatter and proportionately larger, but there is not much in it.
Their differences could be explained by sex, but I suspect it could
also be explained by differing levels of maturity. Neither fish is
sufficiently mature for genital papilla differences to be apparent.
Any opinions would be greatly appreciated.