A new grapsid crab from the Upper Miocene of New Zealand

Abstract

Miograpsus papaka n. gen., n. sp. is based on two female specimens from the Hurupi Formation of Putangirua Stream, Palliser Bay (Tongaporutuan Stage, Upper Miocene). Miograpsus, provisionally classed in the subfamily Varuninae, is distinguished from related genera by its narrow deflexed front with a median sulcus and median marginal notch, by two prominent postfrontal tubercles, apparently by six abdominal segments, by four anterolateral carapace teeth and by its weak, elongate, ridged and subequal chelae (at least in females). © 1981 Journal of the Royal Society of New Zealand.