Family Acanthonotozomellidae Coleman & J.L. Barnard, 1991
Acanthonotozomellidae Coleman & J.L. Barnard, 1991a: 257 (in part).
Epimerinae – Stebbing 1883: 204 (in part).
Iphimedidae – Stebbing 1888: 882 (in part). — Watling & Thurston 1989: 304, 309, 310 (in part). — J.L. Barnard & Karaman 1991: 378 (in part).
Acanthonotozomatidae – Schellenberg 1926: 327 (in part). — K.H. Barnard 1930: 345 (in part). — K.H. Barnard 1932: 115. — Schellenberg 1931: 116 (in part). — J.L. Barnard 1969: 120 (in part).
Paramphithoidae – J.L. Barnard 1969: 389 (in part).
Acanthonotozomellidae – Coleman & J.L. Barnard, 1991b: 279 (in part). — Coleman 2007: 12.
non Iphimedidae Boeck, 1871: 98
non Epimerinae Boeck, 1871: 103..
non Paramphithoidae G.O. Sars, 1883: 25.
non Acanthonotozomatidae Stebbing, 1906: 210.
In earlier literature, only Acanthonotozomella Schellenberg, 1926, Acanthonotozomoides Schellenberg, 1931 and the extralimital Amatiguakius Coleman & J.L. Barnard, 1991 were included in the Acanthonotozomellidae ( Coleman 2007). Actinacanthus Stebbing, 1888, which is traditionally included in the Epimeriidae (e.g., Coleman & J.L. Barnard 1991a; Coleman 2007; De Broyer et al. 2007) is herein transferred to the Acanthonotozomellidae. The entire telson and the large ventrolateral processes on the lower part of the pereionites are characters, which are typical of the Acanthonotozomellidae.
1. Pereionites 2–7 and pleonites 1–2 with an odd number of teeth ……………………………………2
– Pereionites 2–7 and pleonites 1–2 with an even number of teeth …………………………………… ………………………………………………………… Acanthonotozomoides Schellenberg, 1931
2. Pereionite 1 with and one large anteriorly directed and one large posteriorly directed rounded middorsal teeth …………………………………………..…………………………………………3
– Pereionite 1 with one mid dorsal carina ………………… Acanthonotozomella Schellenberg, 1926
3. Projections of pereionites 2–7 and of pleonites huge and styliform; coxae 1–7 each produced into a long sword-like process; pereiopods 3–7 slender ……………… Actinacanthus Stebbing, 1888
– Projections of pereionites 2–7 and of pleonites medium-sized, forming broad carinae; coxae 1–7 not produced into a sword-like process; pereiopods3–7 robust …………………………………………… ….…………………………………. Amatiguakius Coleman & Barnard, 1991 [Extralimital: Alaska]