Children (27 direct children, 665 direct and indirect children):
Pisinae
(tree size 339)
Tychinae
(tree size 1)
Pliosomatinae
(tree size 2)
Epialtinae
(tree size 119)
Actinotocarcinus
Loxorhynchus
(tree size 3)
Libinia
(tree size 17)
Spider crabs
Pugettia
(tree size 30)
Pisa
(tree size 28)
Pisa (genus)
Huenia
(tree size 18)
Sphenocarcinus
(tree size 5)
Menaethius
(tree size 11)
Mocosoa
(tree size 1)
Oxypleurodon
(tree size 35)
Perinea
(tree size 1)
Mimulus
(tree size 1)
Picrocerus
(tree size 1)
Perinia
(tree size 2)
Criocarcinus
(tree size 1)
Tylocarcinus
(tree size 6)
Dehaanius
(tree size 2)
Trigonothir
(tree size 2)
Pyria dana, 1852
(tree size 1)
Scyramathia
(tree size 4)
Crocydocinus
(tree size 8)
Minyorhyncha
Neophrys