[Taxacom] Terminology of trinomials

[Andy Mabbett]

I am continuing to work on the specification of the "species"
microformat:

        <http://microformats.org/wiki/species>

AIUI, the name:

        Homo sapiens idaltu

is a trinomial (aka trinominal ?), consisting, in order, of a genus,
specific name (or "specific epithet") and sub-specific name (or
"subspecies").


However, the archaic taxonomic name for a Little Ringed Plover [1] was:

        Charadrius dubius curonicus

Is this also a "trinomial", or does that form have a different name? If
not, how are the two types of name distinguished?

Apart from the Genus, Charadrius, what are the other components called?



[1] Used, for example, in British Birds, 39:2 (pages 57–8), in
February 1946; see reproduction here:

  <http://www.westmidlandbirdclub.com/bibliography/british-birds/39-57.htm>


-- 
Andy Mabbett