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When the holotype is not mentioned in th...

When the holotype is not mentioned in the original material, which is used as type specimen

A

Paratype

B

Lectotype

C

Neotype

D

Syntype

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Type Specimens**: - A type specimen is a specimen that serves as a reference point for the identification of a taxon (a group of one or more populations of an organism). It is crucial for the classification and naming of species. 2. **Defining Holotype**: - A holotype is a single specimen designated as the type of a species. It represents the defining characteristics of that species. 3. **Identifying Alternatives to Holotype**: - If a holotype is not mentioned in the original description of a species, other types of specimens can be used as alternatives. These include: - **Lectotype**: A specimen selected from the original material to serve as the type when no holotype was designated. - **Neotype**: A specimen designated to serve as the type when no type specimen exists at all. - **Syntype**: Any of two or more specimens that were simultaneously designated as type specimens. 4. **Determining the Correct Type Specimen**: - According to the question, when no holotype is mentioned, the appropriate type specimen to use is the **lectotype**. This is because a lectotype serves as an alternative to a holotype when one is not provided. 5. **Final Answer**: - Therefore, the correct answer to the question is **lectotype**.
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