A Miller's thumb is a term for several small freshwater European fishes, specifically those belonging to the genus Cottus. These fish are also known as bullheads and are part of the Cottidae family.
Key Characteristics of a Miller's Thumb
| Feature | Description |
|---|---|
| Scientific Name | Primarily Cottus gobio, but refers to other Cottus species. |
| Appearance | Flattened body, with a head that has been described as resembling a thumb. |
| Habitat | Freshwater environments in Europe. |
| Family | Cottidae (bullheads) |
Why "Miller's Thumb"?
The name "Miller's Thumb" comes from the alleged resemblance of the fish's head to a human thumb. This comparison highlights the unusual shape of the fish's head, which is somewhat broad and flattened. This is why the fish are also sometimes called bullheads, referencing their broad, often flattened heads.
More Information
- The primary species referred to as a Miller's thumb is Cottus gobio.
- These fish are known for their bottom-dwelling habits.
- They are commonly found in rivers and streams.
In summary, a Miller's thumb refers to small freshwater fish of the Cottus genus, characterized by their flattened bodies and heads that are described to look like thumbs.
