Quote Originally Posted by Kurt View Post
When writing a scientific name, its only the genus (the first part of the name) that should be capitalized. The species and subspecies (when applicable) should never be capitalized. Also, the entire name should appear in italics. Examples; Agalychnis callidryas and Ambystoma mavortium mavortium.
being a little bit nitpicking:
the species name is set together from the genus name + species epithet, both together is the species name => I capitalize the species name, because the first part of the name (the genus) should be capitalized, but not the species epithet as you mentioned.

...this might be already mentioned in this thread - I haven't red all posts.