Nomenclature again

[Pete B]

Are there rules on how the name of an undescribed species is written?

My understanding is that the cheironym is written within parenthesis and has no capitals, even if the name includes a location, as used in The Cichlidroom companion catalog.

I have mentioned this on a forum in the UK and was told that any location should be capitalised, also that the name should be in speech marks.
Also a leading fishkeeping magazine published an interview with Ad Konings on the discovery of a Protomelas species.
They wrote it as Protomelas sp. 'Steveni Taiwan'.
In The Cichlidroom companion catalog it is written Protomelas sp. 'steveni taiwan'.
According to the above mentioned UK forum it should be written Protomelas sp. "Steveni Taiwan".

Who is correct, or is there no set rule?

[cichla]

Pete,
putative undescribed species often labelled by a ‘spec.’ and an accessory toponym indicating the collecting site. There are no rules for such names. Its possible to use 'Steveni Taiwan' or 'steveni taiwan'. However, I recommend to use the version with capital letters only. Otherwise it may happen that it is treated as an official species taxon name.
Greetings, IS