Abyssianira

Doti, Brenda Lía & Roccatagliata, Daniel, 2006, On the Atlantic species of the genus Abyssianira Menzies, 1956 (Isopoda: Asellota: Paramunnidae), Zootaxa 1252, pp. 1-35 : 4

Key to the Atlantic species of Abyssianira

1 Frontal plate developed into a thin horizontal lamina that is flat or slightly concave in dorsal view .................................................................................................................... 2

­ Frontal plate developed into a thin slanting lamina that is convex in dorsal view ......... ............................................................................................................... A. argentenensis

2 Eyestalks pointed and triangular ........................................................ A. acutilobi n. sp.

­ Eyestalks distally rounded ............................................................................................ 3

3 Frontal plate distinctly extending beyond article 1 of antennulae, length/width ratio ~ 0.8, anterior margin strongly convex; article 3 of antennulae ~ 2 times longer than broad A. lingula n. sp.

­ Frontal plate as long as article 1 of antennulae, length/width ratio ~ 0.6, anterior margin slightly convex; article 3 of antennulae elongate, ~ 5 times longer than broad........ ..................................................................................................................... A. dentifrons