Owls often have a preferred spot in the entrance to a cave to which they return to roost.


18 Sorry for quality   owls in Stockyard

This pair of southern boobook owls is roosting in the entrance to Stockyard Tunnel near Eneabba.


19 Owl roost bones (2)

Often a collection of bones from the owl’s prey can be found underneath a roost. This is a particularly large example from another cave in the Eneabba area.

20 Scolopendrid centipede Southrift

Troglobitic centipede around 10 cm long found at Yanchep, possibly from the family Scolopendridae, and potentially an undescribed species.


21 Ngilgi Cave 7

Troglobitic centipede of the family Crytopidae found in a cave at Yallingup.


Scutigerid centipedes, while not normally troglobitic, are frequently seen in caves. They are spectacular in motion, appearing to ‘ripple’ along as their long legs move in ‘waves’.

22 Scutigerid rotated cropped

Scutigerid centipede in a Cape Range cave.


23 Scutigerid reduced

Scutigerid centipede in the Eneabba area


24 Scutigerid

Scutigerid centipede near Cervantes




Cave millipedes from the Cape Range are currently the subject of research by the WA Museum. Samples are collected from various caves to study their characteristics.

25 Diplopoda Paradoxosomatidae Stygiochiropus communis

Stygiochiropus communis is 18–20 mm long when fully adult. Its lack of eyes and pale colour mark it as a troglobite.


26 Diplopoda Paradoxosomatidae Stygiochiropus communis (2) cropped

Gilgies (Cherax quinquecarinatus) are found in a number of caves containing water throughout the south-west, and also at Yanchep. Often they are encountered in more or less the same location. Are they trogloxenes or troglophiles? – difficult to tell.

27 Calgardup (1)


28 Cherax quinquecarinatus, gilgie Troglophile (tp) YN11


29 Gilgie (2)


30 (maybe the next one might be a better choice)


31 gilgie at yanchep