Key to the genera of Lampropidae
(Some specimens may not be placed in the correct genus with certainty if adult males and/ or mouthparts are not known)
1. Uropod endopod of 2 articles............................................................................ 2
- Uropod endopod of 3 articles............................................................................ 5
2. Antennule flagella well developed, accessory flagellum at least 0.5 length of main flagellum.......................... 3
- Antennule accessory flagellum much less than 0.5 length of main flagellum....................................... 4
3. Female with 1 pair of small pleopods. Maxillule palp with 2 setae............................. Doieolamprops n. gen.
- Female without pleopods. Maxillule palp with seta.................................................... Watlingia
4. Antennule accessory flagellum minute, much shorter than 0.5 length of first article of main flagellum. Maxillule without palp........................................................................................ Pseudodiastylis
- Antennule accessory flagellum longer than 0.5 length of first article of main flagellum. Maxillule palp with 2 setae........................................................................................... Austrolamprops n. gen.
5. Carapace dorsoventrally flattened, with sharp marginal carina.................................................. 6
- Carapace not flattened, without marginal carina............................................................. 15
6. Pereopod 5 shorter than pereopod 4 basis................................................................... 7
- Pereopod 5 longer than pereopod 4 basis.................................................................. 12
7. Female with 2 pairs of pleopods.................................................... Pseudoarchaeocuma n. gen.
- Female without pleopods............................................................................... 8
8. Maxillule without palp............................................................. Paralamprops sensu Sars
- Maxillule with palp.................................................................................... 9
9. Maxillule palp without setae........................................................ Quasiparalamprops n. gen.
- Maxillule palp with setae.............................................................................. 10
10. Maxillule with palp with 1 seta....................................................... Farragolamprops n. gen.
- Maxillule with palp with 2 setae......................................................................... 11
11. Female pereopod 2 with fully developed exopod................................................... Platytyphlops
- Female pereopod 2 with rudimentary or absent exopod..................................... Paraplatysympus n. gen.
12. Female pereopod 2 with rudimentary or absent exopod....................................................... 13
- Female pereopod 2 with fully developed exopod............................................................ 14
13. Maxillule with palp.................................................................... Aplatysympus n. gen.
- Maxillule without palp........................................................................ Platysympus
14. Male and female with 1 pair pleopods. Antennule flagella nearly equal................................. Archaeocuma
- Male with 3 pairs pleopods, female without pleopods. Antennule accessory flagellum much shorter than main flagellum............................................................................................. Misceolamprops
15. Pereopod 1 robust, with group of long, stout setae on dactylus........................................ Chalarostylis
- Pereopod without group of long setae on dactylus........................................................... 16
16. Pereopod 5 reduced to 2 articles................................................................ Stenotyphlops
- Pereopod 5 of 5–6 articles, longer than basis of pereopod 4.................................................... 17
17. Pseudorostral lobes acute and elongate.......................................................... Bathylamprops
- Pseudorostral lobes blunt, not elongate.................................................................... 18
18. Female without exopods on pereopods 3–4.............................................. Brachylamprops n. gen.
- Female with rudimentary exopods on pereopods 3–4......................................................... 19
19. Uropod exopod article 1 more than 0.5 length of article 2..................................................... 20
- Uropod exopod article 1 0.2 length of article 2.............................................................. 21
20. Male with penial lobes, no pleopods; pereopod 1 basis equal to all other articles together............................ 21
- Male without penial lobes.............................................................................. 22
21. Male with short, clasping antenna................................................... Phallolampropoides n. gen.
- Male with long antenna. Ventral elaboration on pleonites 1–2................................. Phallolamprops n. gen.
22. Male with 3 pairs pleopods................................................................... Hemilamprops
- Male with 2 pairs of pleopods................................................................. Mesolamprops
23. Male with 3 pairs of pleopods........................................................................... 24
- Male without pleopods................................................................................ 25 24. Mandible truncate........................................................................ Pseudolamprops - Mandible navicular.......................................................................... Typolamprops 25. Male with short, clasping antenna............................................................ Lamprops sensu - Male with long antenna................................................................... Alamprops n. gen.