 In this module, we will discuss about type specimen. What is type specimen? Type specimen is a specimen which we use as a reference material in the museum. Type specimen is when a researcher is doing his research, he is writing the description of his specimen, so the specimens available in front of the researchers, whose base is the original description, one of them selects a specimen and submits this specimen as a reference material in the museum. Type specimen is a reference material for the researchers who are coming later. If any researcher wants to compare his specimens with this reference sample, he can easily find this specimen based on the museum ID of this specimen and study its characters and compare his specimens with this sample. Now, when a reference specimen is kept in the museum, we have to consider some of the characters and some of the things. The most important thing is that we have to mention the precise type locality of the specimen. What is the locality of the specimen? The locality of the specimen is the place where the specimen is collected. So precise type locality and other important notes should be present. Along with that, the specimen which we kept as a type specimen, in the museum with a specific museum ID, what is its sex? It is a male specimen or a female specimen. It should be clearly mentioned. Along with that, the specimen belongs to any developmental stage. It is a larvae, it is an adult, it is in any form. It should be clearly mentioned. Similarly, when a specimen is collected from a type locality, then who collected it? What was the name of the collector? It should be clearly mentioned. Similarly, this specimen is kept as a proper ID number so that the researchers who come later, when they use it as a reference, they can easily identify this specimen on the basis of this specimen. Similarly, when a type locality is mentioned, then its altitudes are mentioned that how many altitudes are collected. Its proper coordinates are mentioned. Apart from that, if it is collected from a depth, then how many meters of the animal is collected from a depth, then it should be clearly mentioned. Apart from that, if this specimen is a fossil, then its geographical horizon should have detailed information about it. Now, whenever a publication is published, in which a type specimen is given reference, then it is necessary that this type specimen has been submitted to the museum. Apart from that, its designation should be clear and there should be no ambiguity in it. Apart from that, whenever a type specimen is kept in the museum, then all the requirements for it, such as we said that what was its type locality, after that, what date it was collected, what was the name of the collector, what was its altitude, apart from that, what were its coordinates, what was its sex, all this information should be present so that any researcher can trace this specimen later.