Children (28 direct children, 28 direct and indirect children):
Hydrolagus matallanasi
Hydrolagus ogilbyi
Whitefish
Spotted ratfish
White-spotted ratfish
Hydrolagus mitsukurii
Hydrolagus lemures
Blackfin ghostshark
Hydrolagus africanus
African chimaera
Hydrolagus purpurescens
Purple ghostshark
Hydrolagus trolli
Ray troll’s chimaera
Hydrolagus pallidus
Pale ghost shark
Hydrolagus macrophthalmus
Bigeye chimaera
Hydrolagus alberti
Gulf chimaera
Ninespot chimaera
Hydrolagus barbouri
Hydrolagus mirabilis
Large-eyed rabbitfish
Hydrolagus waitei
Hydrolagus deani
Hydrolagus affinis
Smalleyed rabbitfish
Hydrolagus novaezealandiae
Dark ghost shark
Hydrolagus marmoratus
Marbled ghostshark
Hydrolagus homonycteris
Black ghostshark
Hydrolagus eidolon
Hydrolagus alphus
Whitespot ghostshark
Hydrolagus bemisi
Pale ghost shark
Hydrolagus melanophasma
Eastern pacific ghostshark
Hydrolagus mccoskeri
Galapagos ghostshark
Hydrolagus lusitanicus
Hydrolagus tsengi
Hydrolagus media
Hydrolagus erithacus