Figure 4 (above and middle)
Thaumatelson walkeri Chilton, 1912, 199–200 pl. 1 fig. 11–15. Schellenberg, 1931,113. Thurston, 1974, 24–25.
Material examined UL /40, King George Isl., Admiralty Bay, from rhizoids of Phyllogigas grandifolius, 4–30m depth, 14.2.1980. 1 ind.
Diagnosis
Antenna 1 article 1 nasiform process not reaching end of article 2. Gnathopod 1 propodus widening distad, palm well defined, corner about 120°. Gnathopod 2 propodus ratio length to width> 2, palm well defined, corner after Chilton’s description about rightangled, in the studied material (ovigerous female 2.5mm) oblique and about 120° corner; carpus distally lengthened. Third pleonite with triangular hump. All uropods surpassing length of telson.
Ecology
After Thurston, 1974, 24 this species occurs in dense growth of large algae like Desmarestia or Phyllogigas in depth of 2–30m, probably living in the interstitium near the holdfasts.
Distribution Antarctica.