Children (102 direct children, 103 direct and indirect children):
Hysterothylacium marinum
Hysterothylacium seriolae
Hysterothylacium zenopsis
Hysterothylacium aduncum
(tree size 1)
Hysterothylacium auctum
Hysterothylacium cornutum
Hysterothylacium gadi
Hysterothylacium incurvum
Hysterothylacium rigidum
Hysterothylacium aetobatum
Hysterothylacium amoyense
Hysterothylacium arnoglossi
Hysterothylacium bifidalatum
Hysterothylacium collare
Hysterothylacium corrugatum
Hysterothylacium cyclopteri
Hysterothylacium fabri
Hysterothylacium increscens
Hysterothylacium legendrei
Hysterothylacium nototheniae
Hysterothylacium perezi
Hysterothylacium physiculi
Hysterothylacium reliquens
Hysterothylacium rhacodes
Hysterothylacium tasmaniense
Hysterothylacium winteri
Hysterothylacium simile
Hysterothylacium bidentatum
Hysterothylacium japonicum
Hysterothylacium liparis
Hysterothylacium paralichthydis
Hysterothylacium saba
Hysterothylacium sinense
Hysterothylacium cenaticum
Hysterothylacium macquariae
Hysterothylacium macrozoarcium
Hysterothylacium naitoi
Hysterothylacium otolithii
Hysterothylacium robustum
Hysterothylacium synpapillus
Hysterothylacium tridentatum
Hysterothylacium unidentatum
Hysterothylacium murrayense
Hysterothylacium fortalezae
Hysterothylacium arii
Hysterothylacium baylisi
Hysterothylacium carangis
Hysterothylacium chaunaxi
Hysterothylacium coiliae
Hysterothylacium dollfusi
Hysterothylacium epinepheli
Hysterothylacium gracile
Hysterothylacium habena
Hysterothylacium hapalogenyos
Hysterothylacium haze
Hysterothylacium histiophori
Hysterothylacium ilishae
Hysterothylacium magnum
Hysterothylacium melanogrammi
Hysterothylacium melichthysi
Hysterothylacium ogcocephali
Hysterothylacium pagrosomi
Hysterothylacium rectum
Hysterothylacium scomberomori
Hysterothylacium trichiuri
Hysterothylacium zenis
Hysterothylacium alatum
Hysterothylacium sphyraenae
Hysterothylacium persicum
Hysterothylacium chrysostomi
Hysterothylacium spirale
Hysterothylacium australe
Hysterothylacium kajikiae
Hysterothylacium brucei
Hysterothylacium sinensium
Hysterothylacium eurycheilum
Hysterothylacium geschei
Hysterothylacium longilabrum
Hysterothylacium gibsoni
Hysterothylacium tetrapteri
Hysterothylacium thalassini
Hysterothylacium zhoushanense
Hysterothylacium leptaspi
Hysterothylacium sebae
Hysterothylacium engraulisi
Hysterothylacium equulai
Hysterothylacium brachyurum
Hysterothylacium coryphaenoidi
Hysterothylacium hanumantharoi
Hysterothylacium hospitum
Hysterothylacium neorhacodes
Hysterothylacium pseudotumbili
Hysterothylacium pelagicum
Hysterothylacium psettodi
Hysterothylacium scomberoidei
Hysterothylacium shyamasundarii
Hysterothylacium yaradense
Hysterothylacium makairi
Hysterothylacium patagonense
Hysterothylacium assi
Hysterothylacium deardorffoverstreetorum
Hysterothylacium muraenesoxin