(Primochaetus)

• 90 - 210 µm
• Scales single lobed without keels and cutouts
• thick, straight spines at the posterior end of the scales (rarely curved)
• all spines +/- same length, length increases slightly towards the back
• sometimes groups with elongated spines

21 Species:

Chaetonotus (P. ) heteracanthus

Chaetonotus (P. ) macrolepidotus

Chaetonotus (P. ) mutinensis

Chaetonotus (P. ) ploenensis

Chaetonotus (P. ) rectaculeatus

Chaetonotus (P. ) rotundus

Chaetonotus (P. ) scoticus

Chaetonotus (P. ) scutulatus

Chaetonotus (P. ) soberanus

Chaetonotus (P. ) tenuis