Coconut crab 
Coenobita perlatus 
Coenobita rugosus 
Coleman's Bubble Coral Shrimp 
Colorful Reef Crab 
Common Box Crab 
Common Hairy Crab 
Common littoral crab 
Common mantis shrimp 
Common Marble Shrimp 
Common Moon Crab 
Common Pill Woodlouse 
Common prawn 
Common Sea Slater 
Common Shiny Woodlouse 
Common Striped Woodlouse 
Conical Spider Crab 
Coralliocaris superba 
Crinoid Boxer Shrimp 
Crinoid Commensal Shrimp 
Crowned Elbow Crab 
Cryptic Sponge Shrimp 
Cryptic Sponge Shrimp 
Curly woodlouse