Aspidiophorus ontarionensis

Length ( bottle ):
120 µm - 140 µm

Width:
24 µm

Width of the head ( five-lobed (weak) ):
19 µm

Width of the neck:
15 µm µm

Length of the furca:
18 µm

Adhessive tubes (curved):
50% of furca

Pharyx ( cylindrical, with small terminal swellings ):
30 µm - 35 µm

Diameter of the mouth ( around ):
3 µm

Dorsal scales:
9 rows of 16-17 peduncle scales each; end plates (6-7 x 2-3 µm) rounded anteriorly, incised posteriorly, no keels; last 2-3 rows terminate in 20 µm spines; lateral on toes a pair of spines (25 µm).

Ventral scales:
Ventral intercilliary field with 25 rows of tiny petiole scales

Oecology:
Mud dweller

Similar species:
A. longichaetus : Head rather trilobate, no median spines

Particularities:
long spines