Porcelain crabs are decapod crustaceans in the widespread family Porcellanidae, which superficially resemble true crabs. They have flattened bodies as an adaptation for living in rock crevices. They are delicate, readily losing limbs when attacked, and use their large claws for maintaining territories. They first appeared in the Tithonian age of the Late Jurassic epoch, 145–152 million years ago.
Petrolisthes is a genus of marine porcelain crabs, containing these extant species:
The Buccinidae are a very large and diverse taxonomic family of large sea snails, often known as whelks or true whelks.
Pagurus is a genus of hermit crabs in the family Paguridae. Like other hermit crabs, their abdomen is not calcified and they use snail shells as protection. These marine decapod crustaceans are omnivorous, but mostly prey on small animals and scavenge carrion. Trigonocheirus and Pagurixus used to be considered subgenera of Pagurus, but the former is nowadays included in Orthopagurus, while the latter has been separated as a distinct genus.
Palaemon is a genus of caridean shrimp in the family Palaemonidae.
The Nassariidae, Nassa mud snails (US), or dog whelks (UK) are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda.
Rissoides is a genus of mantis shrimp. It is named after Antoine Risso, and includes the following species:
Rissoidae is a large family of sea snails. Members of the Rissoidae are very small in size and possess an operculum.
Doris is a genus of sea slugs, specifically dorid nudibranchs. These animals are marine gastropod molluscs in the family Dorididae.
Dardanus is a genus of hermit crabs belonging to the Diogenidae family.
Ancula is a genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Goniodorididae.
Mangelia is a large genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Lysmata is a genus of shrimp in the infraorder Caridea, the caridean shrimp. The genus belongs to the family Lysmatidae. Lysmata are popular ornamental shrimp in the marine aquarium trade for their bright color patterns, interesting behaviors, and ability to control certain aquarium pests such as sea anemones of the genus Aiptasia. They are known to command high prices on the pet market.
Meioceras is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.
The Galatheoidea are a superfamily of decapod crustaceans comprising the porcelain crabs and some squat lobsters. Squat lobsters within the three families of the superfamily Chirostyloidea are not closely related to the squat lobsters within the Galatheoidea. The fossil record of the superfamily extends back to the Middle Jurassic genus Palaeomunidopsis.
Porcellana is a genus of decapod crustaceans in the widespread family Porcellanidae, the porcelain crabs, which superficially resemble true crabs. The genus Porcellana includes the following species:
Pilumnus is a genus of crabs, containing the following species:
Protula is a genus of marine polychaete worms in the family Serpulidae.
Bathynectes is a genus of crabs in the family Polybiidae.
Eucrate is a genus of crabs of the family Euryplacidae.
