Expanathura

Poore, Gary C. B., Lew, Helen M. & Ton, 2002, Expanathuridae (Crustacea: Isopoda) from the Australian region, Zootaxa 82, pp. 1-60 : 24

Key to species of Expanathura

1. Uropodal exopod lanceolate; telson tapering; pleopod 1 endopod much shorter than exopod............................................................................................................................2

­ Uropodal exopod broad; telson spoon­shaped; pleopod 1 endopod barely shorter than exopod...........................................................................................................................4

2. Telson less than twice as long as wide; pleopod 1 endopod about half length of exopod ..................................................................................... E. amstelodami ( Kensley, 1976)

­ Telson more than twice as long as wide; pleopod 1 endopod about one­third length of exopod...........................................................................................................................3

3. Uropodal exopod 3.5 times as long as wide; endopod>3 times as long as wide ........... ................................................................................................. E. mooreae Müller, 1993

­ Pleopod 1 exopod 2.5 times as long as wide; endopod 2 times as long as wide ............ ................................................................................... E. ardea ( Poore & Kensley, 1981)

4. Telson apex rounded, widest at midpoint, with 1 lateral distal seta longer than others. ............................................................................................. E. collaris ( Kensley, 1979)

­ Telson apex truncate or rounded, widest in distal half, with lateral distal setae all short ....................................................................................................................................... 5

5. Telson apex almost square; pleopod 1 exopod 1.5 times as long as wide ...................... ................................................................................ E. haddae ( Kensley & Poore, 1982)

­ Telson apex gently convex; pleopod 1 exopod 1.8 times as long as wide ..................... ........................................................................................ E. macronesia ( Kensley, 1980)