Anonyx lilljeborgi Boeck, 1871 [Invalid]

Antenna 1 shorter than antenna 2; flagellum article 1 slightly longer than article 2. Antenna 2 between 40 to 60% of body length; calceoli present. Eyes large, reniform. Lateral cephalic lobes subacute. Maxilliped palp 4-articulate; inner plate poorly developed, not reaching half length of outer plate.

Gnathopod 1 subchelate; coxa large, about as long as coxa 2, subrectangular, with straight anterior margin; ischium short; carpus long, of subequal length to propodus; propodus margins subparallel, palm transverse. Gnathopod 2 slightly chelate; carpus longer than propodus; dactylus minute. Pereopods 3 and 4 propodus with blunt, locking robust setae at posterodistal corner. Pereopod 5 basis about as long as broad.

Epimeron 1 anterodistal corner producing small, up-turned spine; epimeron 3 posterodistal corner produced, forming a large upturned spine. Urosomite 1 with dorsal depression, not dorsally carinate. Uropods 1 and 2 rami subequal; uropod 2 inner ramus with marginal constriction(s); uropod 3 outer ramus 2-articulate, article 2 short, rami subequal. Telson distinctly longer than broad, deeply cleft.

Female (sexually dimporphic characters): Antenna 1 subequal to antenna 2. Calceoli absent. Lateral cephalic lobes subquadrate.