Haploops, Lilljeborg, 1855

Kaim-Malka, R. A., 2012, Haploops antennata, a new species from the North Atlantic Ocean (Crustacea: Gammaridea: Ampeliscidae) [Contribution to the knowledge of the Haploops genus. 7.], Zootaxa 3320 (1), pp. 36-46 : 45-46

Key to species of Haploops

1 Corneal lenses present................................................................................. 2

- Corneal lenses absent................................................................................. 14

2 Two pairs of corneal lenses............................................................................ 3

- Only one pair of corneal lenses........................................................................... 7

3 Inferior lenses in the middle of the lobe head.................................... Haploops sibirica Gurjanova, 1929

- Inferior lenses near or on the margin head.................................................................. 4

4 Inferior lenses near the margin head......................................... Haploops dellavallei Chevreux, 1900

- Inferior lenses on the margin............................................................................ 5

5 Short down-like setae on the back, Coxa1 strongly truncated............................. Haploops laevis Hoek, 1882

- These characters absent................................................................................ 6

6 Inferior lenses on the margin, antennae = body length............................. Haploops nirae Kaïm-Malka, 1976

- Inferior lenses on the internal side of the margin, antennae = 1/2 body lenth............ Haploops tenuis Kanneworff, 1966

7 Only superior lenses present (inferior absent) .............................................................................................. 8

- Only inferior lenses present (superior absent)............................................................... 13

8 A1 <A 2 ........................................................................................... 9

- A1> A 2 ........................................................................................... 12

9 A1 length <or = A 2 peduncle.......................................................................... 10

- A1 length> A 2 peduncle.............................................................................. 11

10 A1 length <A2 peduncle, head truncated straight................................. Haploops descansa Barnard, 1961

- A1 length = A 2 peduncle, head transversely truncated.......................... Haploops oonah Lowry & Poore, 1985

11 A 2 = 1 / 3 body................................................ Haploops fundiensis Wildish & Dickinson, 1982

- A 2 = 1 / 2 body............................................................ Haploops tubicola Lilljborg, 1856

12 A 2> body, head truncated straight.............................. Haploops gascogni Dauvin & Bellan-Santini, 1996

- A 2 =1 / 2 body, head transversely truncated.......................................... Haploops antennata sp.nov.

13 Long setae on Md, back, telson, A1 <A 2.................................... Haploops longiseta Kaïm-Malka, 2010

- Few long dorsal setae, A1> A 2.............................................. Haploops proxima Chevreux, 1919

14 Pereopod 7 basis narrow............................................................................... 15

- Pereopod 7 basis broad................................................................................ 19

15 Uropod 1, rami equal.................................................................................. 16 - Uropod 1, rami unequal................................................................................ 18

16 Dorsal side of pleon and urosome carinate..................................... Haploops vallifera Stephensen, 1925

- Dorsal side of pleon and urosome not carinate.............................................................. 17

17 P7 not elongate, basis lobe reaching longer than ischium............. Haploops antarctica Bellan-Santini & Dauvin, 2008

- P7 elongate, basis lobe reaching only the end of ischium (male only)............... Haploops abyssorum Chevreux, 1908

18 A1 = A 2 Coxa 4 heart-shaped............................................... Haploops similis Stephensen, 1925

- A1 = A 2 peduncle, coxa 4 not heart shaped......................................... Haploops lodo Barnard, 1961

19 Long dorsal tuft of setae (pereon 5–7 & pleon)....................................... Haploops setosa Boeck, 1871

- Short dorsal setae on pleon 2–3 only........................................ Haploops meloi Valerio-Berardo, 2008