(Hystricochaetonotus)

For the subgenus Hystricochaetonotus are the relatively large, non-overlapping scales with a long spine. This subgenus owes its name to this spiny appearance (hystix = porcupine).

*Typical Chaetonotus (Hystricochaetonotus) - here C. (H. ) persetosus

The scales are in typical arrangement. Their shape is trilobate with a central keel, at the end of which arises a long spine - usually with a secondary tip:

typical three-lobed scales in Hystricochaetonotus - here C. (H. ) persetosus