Subsp. or ssp. ?

[Robin Leech]

By sort of an international agreement, there are some abbreviations that
are used in both botany and zoology.  They are these:

1.  species (singular) =        sp.
2.  Species (plural)   =        spp.
3.  subspecies (sing.) =        ssp.
4.  subspecies (pl.)   =        sspp.

Robin Leech

On Sun, 21 Jan 1996, Martin Dube wrote:

> To those concerned by ICBN,
>
> Is there somebody able to give me good reasons to use ssp. as an
> abbreviation for subspecies when the Code (I have the 1983 version
> in hands) contains only examples with subsp. ?
>
> Martin
>