On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection Author Petrescu, Iorgu text Records of the Australian Museum 2018 2018-03-28 70 1 1 111 http://dx.doi.org/10.3853/j.2201-4349.70.2018.1645 journal article 10.3853/j.2201-4349.70.2018.1645 2201-4349 5236860 82A58B37-13FE-4EA8-AFF2-E954CDBEFD69 Key to species of Scherocumella from Australian waters 1 Carapace, pereon and pleon with dorsal tubercles .................................................................... 2 —— Carapace, pereon and pleon without dorsal tubercles ............................................................... 4 2 First 4 pleonites with tubercles .................................................................................................. 3 —— First 2 pleonites with dorsal tubercles ........................................................ S. vieta ( Hale, 1945 ) 3 Pleonites 3–6 with dorsal carina .............................................................. S. weinbergae sp. nov. —— Pleonites 3–6 without dorsal carina ........................................................ S. clavata ( Hale, 1945 ) 4 Peduncle of uropod longer than pleonite 6 ................................................................................ 5 —— Peduncle of uropod shorter than pleonite 6 ............................................................................... 7 5 Peduncle of uropod more than twice as long as pleonite 6 ................ S. nasuta ( Zimmer, 1914 ) —— Peduncle of uropod less than twice as long as pleonite 6 ......................................................... 6 6 Peduncle of uropod 1.3 pleonite 6 length ............................................... S. sheardi ( Hale, 1945 ) —— Peduncle of uropod 1.12 pleonite 6 length ................................................. S. wittmanni sp. nov. 7 Carapace, length/height: 1.5 ................................................................. S. nichollsi ( Hale, 1949 ) —— Carapace, length/height: 2 ........................................................................... S. lima ( Hale, 1936 )