Paramunida

Mccallum, Anna W., Cabezas, Patricia & Andreakis, Nikos, 2016, Deep-sea squat lobsters of the genus Paramunida Baba, 1988 (Crustacea: Decapoda: Munididae) from north-western Australia: new records and description of three new species, Zootaxa 4173 (3), pp. 201-224 : 204-206

Key to species of the genus Paramunida *

* An interactive key is available online ( Taylor & McCallum 2015)

1. Anterior prolongation of antennal article 1 spatulate................................... P. spatula Macpherson, 2006

- Anterior prolongation of antennal article 1 spiniform......................................................... 2

2. Antennal anterior prolongation of antennal article 1 with row of spines on dorsal margin......... P. spiniantennata sp. nov.

- Antennal anterior prolongation of antennal article 1 without row of spines on dorsal margin........................... 3

3. Rostral spine smaller or at most equal to supraocular spines.................................................... 4

- Rostral spine larger than supraocular spines................................................................. 9

4. Margin between rostral and supraocular spines clearly convex........................... P. curvata Macpherson, 2004

- Margin between rostral and supraocular spines straight or slightly concave........................................ 5

5. Antennal article 2 with well-developed distomesial spine...................................................... 6

- Antennal article 2 with minute distomesial spine.............. P. microrhina Cabezas, Macpherson and Machordom, 2010

6. Mesogastric region with 3 well-developed spines in midline.............................. P. hawaiiensis ( Baba, 1981)

- Mesogastric region with minute spines..................................................................... 7

7. Sternal plastron with numerous striae. Bundle of setae at base of carpus of P1 present............. P. setigera Baba, 1988

- Sternal plastron with few striae on each side of sternites 5–7. Bundle of setae at base of carpus of P1 absent.............. 8

8. Rostral spine short and triangular, with thin dorsal carina. Cardiac region with a row of 3 well developed spines in midline............................................................ P. tenera Cabezas, Macpherson and Machordom, 2010

- Rostral spine spiniform, without dorsal carina. Cardiac region with one well-developed spine..........................

.......................................................................... P aurora Cabezas and Chan 2014 9. P2–4 propodi slender, about 20 times as long as broad....................................... P. longior Baba, 1988

- P2–4 propodi 7–15 times as long as broad................................................................. 10

10. Distomesial spine of antennal article 2 mucronated (sometimes only slightly) or bluntly produced..................... 11

- Distomesial spine of antennal article 2 spiniform............................................................ 24

11. Mesogastric region without well developed spines.............. P. parvispina Cabezas, Macpherson and Machordom, 2010

- Mesogastric region with at least 1 well developed spines..................................................... 12

12. Mesogastric region with 1 (rarely 2) spine................................................................. 13

- Mesogastric region with a median row of 3 or 4 distinct spines................................................. 16

13. Sternal plastron with numerous striae............................................... P. proxima ( Henderson, 1885)

- Sternal plastron with few striae on each side of sternites 5–7................................................... 14

14. Distomesial spine of antennal article 2 clearly overreaching antennal peduncle.................................... 15

- Distomesial spine of antennal article 2 nearly reaching end of antennal peduncle........ P. antipodes Ahyong & Poore, 2004

15. Distolateral spine of antennal article 2 overreaching article 3. Distomesial spine of antennal article 2 distinctly mucronated with spine like process........................................................... P. belone Macpherson, 1993

- Distolateral spine of antennal article 2 not reaching end of article 3. Distomesial spine of antennal article 2 only slightly mucronated................................................................ P. akaina Cabezas & Chan, 2014

16. Distomesial spine of antennal article 2 slightly or clearly overreaching antennal peduncle........................... 17

- Distomesial spine of antennal article 2 never reaching end of antennal peduncle................................... 22

17. Lateral margin of antennular article 1 with distal slender portion as long as proximal inflated portion.............................................................................. P. spica Cabezas, Macpherson and Machordom, 2010

- Lateral margin of antennular article 1 with distal slender portion about half as long as proximal inflated portion.......... 18

18. Distolateral spine of antennal article 2 exceeding antennal article 3...... P. salai Cabezas, Macpherson & Machordom, 2009

- Distolateral spine of antennal article 2 not reaching end of antennal article 3...................................... 19

19. Mesial margin of antennal article 2, including distal spine, straight. Rostrum triangular or spiniform................... 20

- Mesial margin of antennal article 2, including distal spine, convex. Rostrum spiniform.............................. 21

20. Rostrum triangular......................................... P. ascella Cabezas, Macpherson and Machordom, 2010

- Rostrum spiniform...................................... P. mozambica Cabezas, Macpherson and Machordom, 2010

21. Distomesial spine of antennal article 2 shorter than rest of article 2. Gastric region with short striae. Antennal article 3 about 1.5 times longer than broad....................................................... P. stichas Macpherson, 1993

- Distomesial spine of antennal article 2 as long as rest of article 2. Gastric region with moderate-sized striae. Antennal article 3 about twice longer than broad................................. P. lophia Cabezas, Macpherson & Machordom, 2009

22. Sternal plastron with striae on sternites 5–6. Article 2 of antennal peduncle bluntly produced distomesially............................................................................................... P. evexa Macpherson, 1993

- Sternal plastron with sternites 5–6 smooth. Article 2 of antennal peduncle produced distomesially ending in distinct spine.. 2 3

23. Rostrum triangular. Propodus of P2–4 more than 1.5 times dactylus length................. P. echinata Macpherson, 1999

- Rostrum spiniform. Propodus of P2–4 slightly longer than dactylus......................... P. la b i s Macpherson, 1996

24. Rostrum with thick dorsal carina.................................................. P. cristata Macpherson, 2004

- Rostrum with thin dorsal carina........................................................................ 25

25. Distomesial spine of antennal article 2 clearly exceeding antennal peduncle.......... P. leptotes Macpherson & Baba, 2009

- Distomesial spine of antennal article 2 not reaching or at most slightly exceeding antennal peduncle................... 26

26. Mesogastric region with 1 well developed spine (rarely 2 spines)............................................... 27

- Mesogastric region with a row of 3 or 4 spines............................................................. 31

27. Median cardiac region with 1 spine................................................ P. pronoe Macpherson, 1993

- Median cardiac region with a row of 3 or 4 spines........................................................... 28

28. Tufts of long and dense setae along anterior branch of cervical groove..................................................................................................... P. crinita Cabezas, Macpherson and Machordom, 2010

- Few and short setae along anterior branch of cervical groove................................................. 29

29. Sternal plastron with only few striae on lateral sides of sternites 5–6............................................. 30

- Sternal plastron with numerous striae................................................ P. scabra ( Henderson, 1885)

30. Cardiac region with a median row of four spines, third one strong and thicker than others............. P. christina sp. nov.

- Cardiac region with a median row of four spines, third one subequal to first spine............. P. polita Macpherson, 1993

31. Distomesial spine of antennal article 2 reaching or overreaching end of antennal peduncle........................... 32

- Distomesial spine of antennal article 2 not reaching end of antennal peduncle..................................... 35

32. Sternal plastron with few striae on lateral sides of sternites 5–6. Antennal article 2 1.5–2 times longer than broad......... 33

- Sternal plastron with numerous striae on sternites 5–6. Antennal article 2 slightly longer than broad................... 34

33. Antennal article 3 1.5 times longer than broad. Thoracic sternite 7 smoooth............................................................................................... P. marionis Cabezas, Macpherson and Machordom, 2010

- Antennal article 3 as long as broad. Thoracic sternite 7 with few lateral striae.......... P. aspera Cabezas and Chan, 2014

34. Antennal article 3 twice as long as broad. Few and short setae along anterior branch of cervical groove.................................................................................................. P. thalie Macpherson, 1993

- Antennal article 3 slightly longer than broad. Tufts of long and dense setae along anterior branch of cervical groove...................................................................................... P. tricarinata ( Alcock, 1894)

35. Antennal article 3 more than twice longer than broad................................ P. amphitrita Macpherson, 1996

- Antennal article 3 at most 1.5 times as long as broad......................................................... 36

36. Antennal article 2 as long as or more than 3 times longer than broad............................................ 37

- Antennal article 2 at most twice longer than broad........................................................... 38

37. Distomesial spine of antennal article 2 reaching or slightly overreaching end of antennal article 3. Spinules on gastric and hepatic regions mostly forming groups arising from scale-like striae...................... P. pictura Macpherson, 1993

- Distomesial spine of antennal article 2 not reaching end of antennal article 3. Spinules on gastric and hepatic regions mostly not in groups, lacking scaly striae.............................. P. poorei Cabezas, Macpherson and Machordom, 2010

38. Antennal article 2 less than twice as long than broad......................................................... 39

- Antennal article 2 twice longer than broad................................................................. 40

39. Sternal plastron with few striae on lateral sides of sternites 5–6. Antennal article 2 slightly longer than broad, without ventral scales........................................................................ P. cretata Macpherson, 1996

- Sternal plastron with numerous striae on sternites 5–6. Antennal article 2 1.6 times longer than broad, with ventral scales.......................................................................................... P. ioannis sp nov.

40. Rostrum triangular.................................................................................... 41

- Rostrum spiniform.................................................................................... 42

41. Lacking median row of small epigastric spines behind rostral spine. Gastric and hepatic regions with few very small spines (other than mesogastric and epigastric)............................................. P. luminata Macpherson, 1996

- Median row of small epigastric spines behind rostral spine present. Gastric and hepatic regions with many distinct spines (other than mesogastric and epigastric)......................... P. antares Cabezas, Macpherson and Machordom, 2010

42. Row of three mesogastric spines well developed. Distomesial spine of antennal article 2 reaching distal end of article 3.............................................................. P. antares Cabezas, Macpherson and Machordom, 2010

- Row of three mesogastric spines small. Distomesial spine of antennal article 2 overreaching distal end article 3................................................................................. P. haigae Cabezas & Macpherson, 2014