Alien, I mean really Alien.

[Puke]

okay, a quick web search reveals that it goes CLASS > ORDER > FAMILY > GENUS > SPECIES

where class is things like insect or mamal, which is probably what we have five of and you say there are 15 more. I believe there is something above class with three enteries, Plant, Animal, or Fungus.

actually, on further reading it seems that class is far mor specific, containing things like insect, crustation, molusk, arachnid. maybe its not more specific, but there are more things in that Category than i gave credit for.

AH! more reading brings back the old memories! Kingdom and Phylum are the higher level categores, kingdom being Animal, Plant, or Fungi. Phylum is probably what we are talking about, being a much broader classification than Class.