Schizotrema Calman, 1911

Petrescu, Iorgu, 2006, Nannastacidae (Crustacea: Cumacea) from eastern Bass Strait, the south-eastern Australian slope, and Antarctica in the collections of Museum Victoria, Memoirs of Museum Victoria 63 (2), pp. 129-173 : 162-163

Schizotrema Calman, 1911

Schizotrema Calman, 1911: 341 , 360–361.— Watling, 1991b:

755.— Băcescu, 1992: 259.— Stoddart and Lowry, 2003: 418.

Type species. Schizotrema depressum Calman, 1911 .

Remarks. In Schizotrema , the carapace is high as in Nannastacus , higher than in Cumella ; the eyes are always as in Nannastacus , but the pseudorostral lobes are completely separated from base to top, not like in Nannastacus , Scherocumella or Cumella . The uropodal peduncle is as long as or shorter than pleonite 6, as in Nannastacus .

Key to species of Schizotrema from Australian waters

1. Exopod of uropod at least 0.3 times as long as endopod 2

— Exopod of uropod at least 0.25 times as long as endopod 3

2. Last pereonite and 1st pleonite with a pair of strong dorsal spines S. aculeatum Hale, 1936

— Last pereonite and 1st pleonite without spines S. nudum Tafe and Greenwood, 1996

3. Carapace with dorsal and lateral spines S. resimum Hale, 1949

— Carapace without spines S. leopardinum Hale, 1949