;"H. nalu";"H. pontohi";"H. japapigu" "Data source";"SAMC F041933-F041934";"Lourie and Kuiter 2008";"Short et al. 2018" "Single gill opening";present "Elevated cleithral girdle";present Coronet;"distinct and elevated" "Cleithral spines";"pectoral fin base, ventral of 1st trunk ring" "Subdorsal rings";"3 trunk +1 tail" "Lateral head spine";present "Broad snout spine";present "Eye spine dorsad";double;single "Eye spine ventrad";single "1st superior trunk ridge spines";present "2nd superior trunk ridge spines";present;present;absent "Elevated ridge on trunk";absent;present "5th superior trunk ridge spines";present "5th lateral trunk ridge spines";present "6th superior trunk ridge spines";absent;present "8th lateral trunk ridge spines";present "8th inferior trunk ridge spines";absent;present "Subdorsal trunk ridge spines";11th,12th;10th,11th,12th "Superior tail ridge spines";"5th, 9th, 12th" "Inferior tail ridge spines";absent