Phillumeny is the hobby of collecting different match-related items: matchboxes, matchbox labels, matchbooks, matchcovers, matchsafes, etc. The collector is called a phillumenist.
Arthur J. Dent is the name of a person who collects mathbooks.
phillumenist
There does not appear to be a name for it.
Weird
Phonographer.
Quodophile.
Someone who collects everything would be called a hoarder - this type of person may have OCD as well.
Some of the names given for a person who collects trains:model train collectormodel train enthusiasttrain modeler
That's an entomologist.
Gun-collector
usher
The person who studing about the shell is calles as chonchologist.
Arachnid collector or Arachnophile.
A Pottea.