Haltidytes

Body short, bottle-shaped
Cephalion present
behind setola on papillae
1-3 pairs of ventrolaterally antspringing, strong spur spines
posterior spines protrude the trunk by up to one body length
further dorsal jumping spines
no secondary spines
ventral cilia in rows, no tufts
jumping movements for escape possible due to jumping spines

6 Species:

Haltidytes crassus

200 µm - 209 µm
Dorsal scales: No scales; 5 pairs of non-crossing elastic spines projecting above the body; two spines each starting ventrally
Ventral scales: no scales; 3 pairs of long jump spines (100 - 240 mm); posterior ones overhang the body by one body length and cross each other
Particularities: Setae stand on clear papillae

Haltidytes festinans

120 µm - 122 µm
Dorsal scales: no scales; dorsolaterally 3 groups each of 3 + 2 + 2 jump spines, which protrude even in resting position and slightly overhang the body
Ventral scales: no scales; a pair of long jumping spines (140-144 µm), surpassing the body by 3/4 of its length and crossing each other

Haltidytes ooeides

Haltidytes pseudosquamosus

Haltidytes saltitans

83 µm - 85 µm
Dorsal scales: no scales; two long, straight caudal spines (70-75 µm); 4 pairs of dorsolateral crossing spines
Ventral scales: no scales; one pair of long, crossing hock spines (80-82 µm)
Particularities: inadequately described