Hemigrapsus sexdentatus | 水產百科網

Species of crab

Hemigrapsus sexdentatus, also called the “common rock crab” or “common shore crab,” is a marine crab indigenous to the southern shores of New Zealand. This crab is a member of the Varunidae family in the order Decapoda.[3]

H. sexdentatus was previously referred to by the name Hemigrapsus edwardsii.[4] However, problems with its generic definition incited studies to be done comparing the crab to three other crab genera: Brachynotus, Heterograpsus, Hemigrapsus. These issues were resolved and the species of New Zealand crab was found to belong in Hemigrapsus and should be known as H. sexdentatus.[4]

H. sexdentatus females can grow to widths around 45 millimeters (1.8 inches) and males to 55 millimeters (2.2 inches).[3] Located in the phylum A...