Espadarana audax is a species of frog in the family Centrolenidae. It is found on the Amazonian versant of Andes in northeast Peru, eastern Ecuador, and southern Colombia.
Ceylonthelphusa diva is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa durrelli is a species of decapod in the family Gecarcinucidae. It is native to Central Province, Sri Lanka.
Ceylonthelphusa kotagama is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa nata is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa orthos is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa sanguinea is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa soror is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa venusta is a species of decapod in the family Gecarcinucidae.
Euastacus hystricosus is a species of southern crawfish in the family Parastacidae.
Euastacus neodiversus is a species of southern crawfish in the family Parastacidae.
Perbrinckia enodis is a species of decapod in the family Gecarcinucidae.
Perbrinckia quadratus is a species of decapod in the family Gecarcinucidae.
Perbrinckia rosae is a species of decapod in the family Gecarcinucidae.
Spiralothelphusa is a genus of freshwater crabs in the family Gecarcinucidae. It contains these species, all of which are included on the IUCN Red List:
Spiralothelphusa parvula is a species of decapod in the family Gecarcinucidae.
Ceylonthelphusa cavatrix is a species of decapod in the family Gecarcinucidae.
Potamonautes lividus, also known as the blue river crab, is a species of decapod in the family Potamonautidae.
Caridina fernandoi is a freshwater shrimp endemic to Sri Lanka, often found in lowland reservoir, slow flowing rivers and streams.
