All that remains now is to put the new classification system into acceptable
taxonomic form, and submit it to ICZN for approval.  May I humbly suggest
the following:

Advanced collector - Colligerator peritus
Aesthetic collector - Colligerator pulcher
Ancillary collector - Colligerator additicius
Amateur - Colligerator idiota (no offense intended)
Beginner - Colligerator tiro
Casual collector - Colligerator fortuitus
Collector - Colligerator generalis
Conchologist - Colligerator discipulusconchae
Curator - Colligerator curator
Dealer - Colligerator negotiator
Enthusiast - Colligerator studiosus
Evangelist* - Colligerator evangelista
Flying pig - Colligerator porcusvolatilis
Keeper** - Colligerator curator anglicus
Malacologist - Colligerator physicusconchae
Masochist*** - Colligerator conjugiscolligerator
Neophyte - Colligerator novus
Pre-professional - Colligerator preprofessionum
Private collector - Colligerator privatus
Professional - Colligerator professionum
Registered collector - Colligerator publicus
Semi-professional  - Colligerator subprofessionum
Serious collector, stages 1 to 3 - Colligerator serius gradusprimus; C. s.
gradussecundus; C. s. gradustertius
Shell collector - Colligerator conchae
Xenophora**** - Xenophora

(Apologies in advance to the ladies for using masculine gender in the above)

Paul M.