Sphaeromatidae

Common Names

Sphaeromatidae are commonly referred to as "pill bugs," "roly-polies," or "slaters." These names are often used interchangeably, although some distinctions exist. For example, the term "pill bug" is often used for terrestrial species, while "roly-poly" is more commonly applied to aquatic species. However, the specific names used vary depending on region and local usage.

Characteristics

Sphaeromatidae exhibit a range of characteristics, including:

• Body shape: Sphaeromatidae are typically oval-shaped and flattened, with a segmented body. Their most notable feature is their ability to roll into a tight ball when threatened, protecting their vulnerable underside.
• Size: Sphaeromatidae vary in size, ranging from a few millimeters to several centimeters in length.
• Color: The color of Sphaeromatidae can range from grey and brown to various shades of red, orange, and purple. Some species exhibit distinctive patterns or markings.
• Antennae: Sphaeromatidae have two pairs of antennae, one pair short and another pair longer.
• Legs: Sphaeromatidae have seven pairs of legs, adapted for walking and swimming depending on the species.

Environments

Sphaeromatidae are found in diverse environments worldwide, including:

• Marine environments: Many Sphaeromatidae species inhabit coastal areas, rocky shores, tide pools, and coral reefs.
• Terrestrial environments: Some Sphaeromatidae species are found in terrestrial habitats, such as forests, gardens, and under rocks and logs. These species are typically adapted to moist environments.
• Freshwater environments: A few Sphaeromatidae species are found in freshwater habitats, such as streams and lakes.

References

For further information about Sphaeromatidae, refer to the following resources:

• A review of the Sphaeromatidae (Isopoda: Oniscidea) from the Canary Islands
• Sphaeromatidae (Isopoda: Oniscidea): A review of the family with descriptions of new species and new records from Southeast Asia