Royal Urchin

Mespilia globulus, commonly known as the "Pencil Urchin" or "Globe Urchin," is a species of sea urchin found in tropical waters of the Indo-Pacific region. It is known for its distinctive spherical shape and long, slender spines that cover its body.

The Pencil Urchin has a compact and round body covered in a hard exoskeleton. Its spines are usually brown or black in color, with some variations in shades and patterns. The spines serve as a protective mechanism against predators and help the urchin move and navigate across the substrate.

This species is typically found in rocky reefs and coral reefs, where it feeds on algae and other small organisms present in the water column or on the substrate. It plays a crucial role in maintaining the health of the reef ecosystem by grazing on algae, helping to control its growth and prevent overgrowth that can harm coral and other reef organisms.

In aquariums, the Pencil Urchin can be a fascinating addition, adding visual interest and contributing to the overall ecosystem balance. It requires a well-maintained marine aquarium with appropriate water quality, temperature, and salinity levels. Providing ample hiding places, such as rock crevices or caves, is important to ensure the urchin feels secure in its environment.

It's important to note that some species of sea urchins, including the Pencil Urchin, have venomous spines that can cause injury if handled carelessly. Therefore, it is advisable to exercise caution when handling or maintaining these creatures in an aquarium setting.

Overall, the Pencil Urchin, or Mespilia globulus, is a captivating sea urchin species known for its unique shape and striking spines. With proper care and suitable habitat conditions, it can thrive and contribute to the beauty of a marine aquarium while playing a beneficial role in algae control.