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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Mandibulata
Tracheata
Uniramia
Pancrustacea
Crustacea (Crustaceans)
Malacostraca (Malacostracans)
Eumalacostraca
Eucarida
Decapoda (Decapod)
Pleocyemata
Brachyura (True crabs)
Pseudothelphusidae

Ptychophallus (7257155)

Children (19 direct children, 19 direct and indirect children):

Ptychophallus barbillaensis

Ptychophallus coastaricensis

Ptychophallus cocleensis

Ptychophallus colombianus

Ptychophallus exilipes

Ptychophallus goldmanni

Ptychophallus kuna

Ptychophallus lavallensis

Ptychophallus micracanthus

Ptychophallus montanus

Ptychophallus osaensis

Ptychophallus paraxantusi

Ptychophallus tristani

Ptychophallus tumimanus

Ptychophallus uncinatus

Ptychophallus xantusi

Ptychophallus paraxanthusi

Ptychophallus costaricaensis

Ptychophallus bilobatus