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New Zealand Half Crab

Scientific Name
Petrolisthes elongatus
Scientific Author
(Milne Edwards, 1837)
Taxonomy
Crustacea: Decapoda: Anomura: Porcellanidae

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Petrolisthes elongatus

Diagnostic Notes

Carapace rounded, about as broad as long; finely granulate, without dorsal spines, without supraocular spine, front broadly rounded-triangular, with smooth margins. Cheliped carpus inner margin with obsolete ridge proximally, outer margin with 1–2 weak spines and sharp distal angle; propodus unarmed, weakly granulate. Merus of walking legs unarmed. Telson with 7 plates. 

 

Up to 21 mm long. Reddish-yellow.


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