Hystrichosphaeridium arborispinum

Hystrichosphaeridium asterium

Hystrichosphaeridium cribrotubiferum

Hystrichosphaeridium latirictum

Hystrichosphaeridium patulum

Hystrichosphaeridium petilum

Hystrichosphaeridium phoenix

Hystrichosphaeridium recurvatum

Hystrichosphaeridium sheppeyense

Hystrichosphaeridium simplicispinum

Hystrichosphaeridium tubiferum