Lycaeopsis

Zeidler, Wolfgang, 2004, A review of the hyperiidean amphipod superfamily Lycaeopsoidea Bowman & Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea), Zootaxa 520, pp. 1-18 : 6

Key to the species of the genus Lycaeopsis

1. Pereopod 5; merus, carpus and propodus long and thin; propodus at least twice as long as basis (adult males) .................................................................................................... 2

­ Pereopod 5; merus, carpus and propodus not especially long or thin; propodus shorter than basis (females and juveniles)................................................................................. 3

2 Uropod 3; endopod leaf­like, not modified. Telson triangular....................................... ............................................................................................. L. themistoides Claus, 1879

­ Uropod 3; endopod incised on outer margin. Telson bottle­shaped............................... ........................................................................................ L. zamboangae Stebbing, 1888

3. Pereopod 6; basis shorter than propodus. Double urosomite as broad as long .............. ............................................................................................. L. themistoides Claus, 1879

­ Pereopod 6; basis longer than propodus. Double urosomite longer than broad ............ ........................................................................................ L. zamboangae Stebbing, 1888