Bathyamaryllis

Kaim-Malka, R. A., 2014, New Lysianassoid Amphipods from the North Eastern Atlantic Ocean, Zootaxa 3821 (5), pp. 551-566 : 565

Key to species of Bathyamaryllis

1 Uropod 3: outer ramus 1-articulate........................................................................ 2

– Uropod 3: outer ramus 2-articulate........................................................................ 5

2 Head anterior margin with only a notch or a concavity........................................................ 3

– Head anterior margin with a notch extended into a slit........................................................ 4

3 Lateral cephalic lobe truncated; Antenna 1, first joint with a tooth.............. Bathyamaryllis haswelli ( Stebbing, 1888) .

– Lateral cephalic lobe triangular; Antenna 1, first joint without tooth................... Bathyamaryllis biscayensis n. sp.

4 Gnathopod 2 palm acute. Pereopod 4 coxa with anteroventral corner subquadrate...................................................................................................... Bathyamaryllis pulchellus ( Bonnier, 1896) .

– Gnathopod 2 palm transverse. Pereopod 4 coxa with anteroventral corner rounded...... Bathyamaryllis perezii Pirlot, 1933 .

5 Pereopod 4 coxa with anterior margin slightly curved................... Bathyamaryllis kapala Lowry & Stoddart, 2002 .

– Pereopod 4 coxa with anterior margin straight......................... Bathyamaryllis ouvea Lowry & Stoddart, 1994 .