Key to genera of Lumbrineridae
1. Peristomiun with a gap on dorsum ............................................................. Lysarete
- Peristomium entire ................................................................................................. 2
2(1). Maxillary apparatus with five pairs of maxillae .................................................... 3
- Maxillary apparatus with four pairs of maxillae .................................................. 10
3(2). Without hooded hooks .................................................................... Arabellonereis
- With composite or simple multidentate hooded hooks, or both ........................... 4
4(3). Anterior parapodia with postchaetal branchiae, MIV with edge multidentate ........ ......................................................................................................................... Ninoe
- Anterior parapodia without postchaetal branchiae, MIV with up to two teeth .... 5
5(4) MII as long as MI .................................................................................................. 6
- MII half as long as MI ........................................................................................... 7
6(5) With both simple and composite multidentate hooded hooks ............. Lumbrineris
- With simple multidentate hooded hooks only ........................................ Scoletoma
7(5) With wide connecting plate beetwen MI and MII ................................................. 8
- With narrow connecting plate beetwen MI and MII ................................... Eranno
8(7) With both composite and simple hooded hooks, without antennae, nephridial papillae and branchiae ........................................................................................... 9
- With simple multidentate hooded hooks only, with three antennae, and nephridial papillae and branchiae on posterior segments ........................................... Kuwaita
9(8) With composite spinigers ..................................................................... Lumbricalus
- Without composite spinigers .................................................. Hilbigneris gen. nov.
10(2) With both wide and narrow connecting plates beetwen MI and MII ...................... ................................................................................................ Sergioneris gen. nov.
- Without connecting plate beetwen MI and MII.................................................... 11
11(10) With limbate simple multidentate hooded hooks; MIV with peculiar shape, rectan- gular attachment lamella with a protruding expansion ....................... Abyssoninoe
- Without limbate simple multidentate hooded hooks; shape of MIV different as
above..................................................................................................................... 12 12(11) With simple bidentate hooded hooks, pygidium without anal cirri ..................... 13
- With simple multidentate hooded hooks, pygidium with anal cirri ..................... 14
13(12) Carriers joined to 1/2 of base of MI and longer than MI; MI forceps-like without inner accessory teeth; mandible fused up to 3/4 of its length ........ Lumbrineriopsis
- Carriers joined to entire base of MI and shorter than MI; MI forceps-like with inner accessory teeth; mandibles completely fused .......................... Lumbrinerides
14(12) MIV with whitish central area; without branchiae .............................................. 15
- MIV completely pigmented; anterior parapodia with postchaetal branchiae .......... ................................................................................................................ Cenogenus
15(14) With both composite and simple multidentate hooded hooks ............................. 16
- With simple multidentante hooded hooks only ................................................... 18
16(15) With three antennae; MI and MII with attachment lamellae; mandible with both anterior and posterior end divergent ....................................................... Augeneria
- Without antennae; MI and MII without attachment lamellae; mandible with wide distal end narrowing to the posterior end ............................................................ 17
17(16) Carriers joined to 1/2 of base of MI and longer than MI; MIII with wide attachment lamella along entire lateral edge; mandible fused up to 3/4 of its length ....... .................................................................................................. Loboneris gen. nov.
- Carriers joined to entire base of MI and as long as MI; MIII with narrow attachment lamella along 1/4 of posterior lateral edge; mandible totally fused................. Gallardoneris gen. nov.
18(15) MI with attachment lamella; MII as long as MI; MIII with whitish central area..... .............................................................................................. Helmutneris gen. nov.
- MI without attachment lamella; MII shorter than MI; MIII completely pigmented .................................................................................................. Gesaneris gen. nov.