Hmm. I was an individual member of ARAZPA earlier in the year, but didn't renew it (at least for now) because I'm currently in a keep-living-costs-down-wherever-possible period.
What I referred to most (and have since lost due to a computer crash) was a series of PDFs that were broken up into order (Mammalia, Aves, Reptilia, Amphibia, the two major orders of fish and then 'Invertebrates' as a whole), and listed both current and intended holdings of each species.
This, I presume, is the census and plan? Because despite joining in March/April (I can't remember exactly when) the latest edition available on the website was as at then end of 2007.