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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)
Grapsoidea
Varunidae
Varuninae

Ptychognathus (18587247)

Children (29 direct children, 29 direct and indirect children):

Ptychognathus hachijyoensis

Ptychognathus affinis

Ptychognathus altimanus

Ptychognathus andamanensis

Ptychognathus barbatus

Ptychognathus capillidigitatus

Ptychognathus crassimanus

Ptychognathus demani

Ptychognathus dentatus

Ptychognathus easteranus

Ptychognathus glaber

Ptychognathus guijulugani

Ptychognathus hachijoensis

Ptychognathus insolitus

Ptychognathus intermedius

Ptychognathus ishii

Ptychognathus johannae

Ptychognathus lipkei

Ptychognathus onyx

Ptychognathus pilipes

Ptychognathus pilosus

Ptychognathus polleni

Ptychognathus pusillus

Ptychognathus riedelii

Ptychognathus spinicarpus

Ptychognathus takahashii

Ptychognathus takahasii

Ptychognathus makii

Ptychognathus stimpsoni