| Ranina ranina|
It may grow up to 150 millimetres (5.9 in) long, and may weigh up to 900 grams (2.0 lb). The carapace is wider at the front, reddish brown in color, with ten white spots. Ranina ranina is mainly nocturnal, and remains buried in the sand during the day.
The species is commercially exploited over much of its range, and in Queensland, Australia, only adults above 100 mm (3.9 in) carapace length may be landed. In the Philippines in 2008, prices for Ranina ranina were around 200–300 pesos per kilogram.