Herpetologist?
The proper term for that person would be known as a numismatist. There is no difference in titles between an American collector,a Canadian collector, or a European collector.
a fisherman whatelse could it be?? An Aquarist is a person who has aquariums and collects fish as a hobby, a simpler term could be fishkeeper.
The proper term for serpent worship is Ophiolatry. Ophiolatry refers to the religious veneration or worship of snakes or serpents.
A person that collects stones is called a rock collector or rock hound. A lapidarist is an expert on precious stones and the cutting and engraving of them.
a coral collector
A bag-man is a person who collects bribes from the bribers and gives them to the bribees. The term comes from the practice of stuffing cash in a bag that the bagman hands over to the person being bribed.
In the US, they are called "solicitors" (which can mean lawyers in the UK and Canada).The urban slang term for paid or phony solicitors is "chuggers."The related term for a person begging for money is a panhandler.
A person who collects flags is known as a "vexillophile." This term comes from "vexillology," which is the study of flags, including their history, symbolism, and usage. Vexillophiles often appreciate flags for their artistic designs and cultural significance.
Proper nouns.
This might be a characteristic of a person who is a narcissist.
The proper term is spelled Afghani (for a person from Afghanistan, or the currency there).
The proper term is 'person with dwarfism' or 'little person'. It is important to use language that is respectful and acknowledges the individual's identity beyond their physical characteristics.