Genus Aeginella Boeck, 1861

Diagnosis (based on McCain, 1968 and Laubitz, 1972). Head and pereonite 1 separated by a distinct suture. Pereonites 6 and 7 separated (not fused). Flagellum of antenna 1 more than 2-articulate. Flagellum of antenna 2 two-articulate, swimming setae absent. Mandible molar present; palp 3-articulate, setal formula for distal article 1- x- 1. Inner plate of maxilliped smaller than outer plate. Gills present on pereionites 3 and 4. Pereopods 3 and 4 absent. Pereopods 5–7 six-articulate. Abdomen in both sexes with pair of appendages and pair of lobes.

Type species. Aeginella spinosa Boeck, 1861: pp. 673–674; Boeck, 1869: p. 416; Boeck, 1871: pp. 272–273; Boeck, 1876: pp. 684–686, pl. 32, fig. 4; Mayer, 1890: pp. 36–37, pl. 1, fig. 24, pl. 5, figs 33–35; Sars, 1895: 653– 654, pl. 235, fig. 1; Stephensen, 1929: p. 178, fig. 332; Stephensen, 1944: pp. 48–49, map. 9; McCain, 1968: pp. 8– 13, figs 2–3; Laubitz, 1972: pp. 19–21, pl. 1, map 1; Vassilenko & Petryashov, 2009: p. 110, pl. 6.

Until the end of the 1960ies a complete list of records and drawings is given by the study of McCain & Steinberg, 1970.