Munida Leach 1820
Creators: name: Macpherson, Enrique
name: Rodríguez-Flores, Paula C.
name: Machordom, Annie
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Munididae
Munida

description: Key to the species of Munida from the Western and Central Indian Ocean
Note: we have included all species of the genus occurring in the Western Indo-Pacific region as defined by Spalding et al. (2007).
1. Three or four spines on lateral margins of carapace behind cervical groove .................................... 2
– Five spines on lateral margins of carapace behind cervical groove .................................................. 7
2. Lateral parts of fifth to seventh thoracic sternites with distinct carinae ............................................ 3
– Lateral parts of fifth to seventh thoracic sternites without distinct carinae ...................................... 4
3. Second abdominal somite with spines on anterior border ................................ M. cristulata sp. nov.
– Abdominal somites unarmed ................................ M. muscae Macpherson & de Saint Laurent, 2002
4. Lateral parts of posterior thoracic sternites with granules ................................................................ 5
– Lateral parts of posterior thoracic sternites without granules ............................................................ 6
5. Distomesial spine of antennular article 1 longer than distolateral .................... M. barbeti Galil, 1999
– Distomesial spine of antennular article 1 shorter than distolateral ................ M. tetracantha sp. nov.
6. Abdominal somites unarmed or with spines on each lateral extremity of anterior ridge on second somite ................................................................................................................ M. sentai Baba, 1986
– Second abdominal somite with median pair of spines or with spines along anterior ridge of second somite ................................................................................................. M. nesiotes Macpherson, 1999
7. Lateral parts of seventh thoracic sternites with small granules ......................................................... 8
– Lateral parts of seventh thoracic sternites without small granules ..................................................... 9
8. Extensor margin of merus of Mxp3 with distal spine. Distomesial spine of antennular article 1 longer than distolateral ........................................................................ M. limula Macpherson & Baba, 1993
– Extensor margin of merus of Mxp3 unarmed. Distomesial spine of antennular article 1 slightly shorter than distolateral ......................................................................................... M. euripa sp. nov.
9. Abdominal somites unarmed or with spines on each side of anterior ridge on second tergite ........ 10
– Second abdominal somite with median pair of spines or with spines along anterior ridge of second tergite .............................................................................................................................................. 17
10. Eyes small, corneas barely wider than eyestalk. Maximum corneal diameter less than ¼ distance between bases of anterolateral spines .................................. M. comorina Alcock & Anderson, 1899
– Eyes large, corneas dilated. Maximum corneal diameter equal to or greater than ¼ distance between bases of anterolateral spines ............................................................................................................ 11
11. Distal spines of antennular article 1 of different sizes ....................................................................... 12
– Distal spines of antennular article 1 subequal .................................................................................. 15
12. Distomesial spine of antennular article 1 shorter than distolateral spine .............................................. ............................................................................................ M. antonbruuni (Tirmizi & Javed, 1980)
– Distomesial spine of antennular article 1 longer than distolateral .................................................. 13
13. Frontal margin oblique. First anterolateral spine of carapace small, slightly larger than first lateral branchial spine ....................................................... M. foresti Macpherson & de Saint Laurent, 2002
– Frontal margin transverse. First anterolateral spine of carapace small, more than twice size of first lateral branchial spine ...................................................................................................................... 14
14. Dactylus of walking legs with spines along entire fleXor margin .................... M. mesembria sp. nov.
– Dactylus of walking legs unarmed on distal third of fleXor margin .................... M. austrina sp. nov.
15. Third segment of antennal peduncle unarmed ........................................... M. roshanei Tirmizi, 1966
– Third segment of antennal peduncle with distolateral spine ........................................................... 16
16. P1 fingers shorter than palm .......................................................... M. arabica Tirmizi & Javed, 1992
– P1 fingers longer than palm .......................................................... M. janetae Tirmizi & Javed, 1992
17. Eyes small, corneas barely wider than eyestalk. Maximum corneal diameter less than ¼ distance between bases of anterolateral spines .................................................... M. typhle Macpherson, 1994
– Eyes large, corneas dilated. Maximum corneal diameter equal to or greater than ¼ distance between bases of anterolateral spines ............................................................................................................ 18
18. Fourth abdominal somite with spines on anterior border ................ M. babai Tirmizi & Javed, 1976 – Fourth abdominal somite unarmed .................................................................................................. 19
19. Abdominal somites 2 and 3 with spines on anterior border ............................................................ 20
– Spines only on abdominal somite 2 ................................................................................................. 21
20. Parahepatic spine present on each side. Abdominal somite 3 with 3–4 spines. P2–4 dactyli with easily recognizable, movable spines on fleXor margin ......................................................................... ............................................................................... M. shaula Macpherson & de Saint Laurent, 2002
– No parahepatic spines. Abdominal somite 3 with 2 spines. P2–4 dactyli with very fine, movable spines on fleXor margin ........................................................................... M. vigiliarum Alcock, 1901
21. Extensor margin of 3 Mxp merus with distal spine ......................................................................... 22
– Extensor margin of 3 Mxp merus unarmed ..................................................................................... 27
22. Distomesial spine of antennular article 1 clearly shorter than distolateral ...................................... 23
– Distal spines of antennular article 1 subequal or distomesial spine longer than distolateral ........... 25
23. Distomesial spine on antennal article 2 clearly overreaching antennal peduncle ................................ .................................................................................................. M. dispar Macpherson & Baba, 1993
– Distomesial spine on antennal article 2 clearly not reaching distal end of antennal peduncle ......... 24
24. Rostrum with longitudinal dorsal carina ............................................................ M. stomifera sp. nov.
– Rostrum smooth, without longitudinal dorsal carina .............................................. M. micra sp. nov.
25. Distomesial spine of antennular article 1 longer than distolateral ..................... M. latior Baba, 2005
– Distal spines of antennular article 1 subequal .................................................................................. 26
26. Fourth to seventh thoracic sternites with numerous striae. Distomesial spine of antennular article 1 overeaching antennal peduncle ............................................... M. eudora Macpherson & Baba, 1993
– Fourth to seventh thoracic sternites with few striae. Distomesial spine of antennular article 1 not reaching end of antennal peduncle ......................................... M. sphinx Macpherson & Baba, 1993
27. Frontal margins oblique ................................................................................................................... 28
– Frontal margins transverse .............................................................................................................. 30
28. Dactylus of walking legs unarmed on distal part of fleXor margin ............................ M. hoda sp. nov.
– Dactylus of walking legs with spines along entire fleXor margin .................................................... 29
29. Distomesial spine on antennal article 2 overreaching antennal peduncle. Lateral margins of carapace straight .......................................................................................................... M. africana Balss, 1913
– Distomesial spine on antennal article 2 not overreaching antennal peduncle. Lateral margins of carapace moderately convex .................................. M. spicae Macpherson & de Saint Laurent, 2002
30. Dactylus of walking legs short and stout, about half propodus length ................................................ ........................................................................................................... M. insularis Macpherson, 1999
– Dactylus of walking legs long and slender, as long as or slightly shorter than propodus length ........ 31
31. Distomesial spine of antennal article 1 reaching end of article 2. Eyes moderately large, corneas wider than eyestalk. MaXimum corneal diameter about ⅓ distance between bases of anterolateral spines ............................................................................................................................................... 32
– Distomesial spine of antennal article 1 not reaching end of article 2. Eyes small, corneas barely wider than eyestalk. Maximum corneal diameter less than ¼ distance between bases of anterolateral spines ............................................................................................................................................... 35
32. Distal spines of antennular article 1 subequal ...................................... M. andamanica Alcock, 1894
– Distomesial spine of antennular article 1 smaller than distolateral ................................................. 33
33. Carapace with some protogastric spines. P1 movable finger with only one basal spine on lateral border. P2 merus 5 times carpus length ................................................. M. rubiesi Macpherson, 1991
– Carapace without protogastric spines. P1 movable finger with several spines along lateral border. P2 merus 3 times carpus length ............................................................................................................ 34
34. Dorsal surface of carapace with numerous scale-like ridges between main transverse ridges ............ ............................................................................................................... M. dissita Macpherson, 1999
– Dorsal surface of carapace with few scale-like ridges between main transverse ridges ...................... ........................................................................... M. benguela de Saint Laurent & Macpherson, 1988
35. P1 fiXed finger unarmed on proXimal half of mesial border ............................. M. remota Baba, 1990
– P1 fiXed finger with strong spine on proXimal half of mesial border ........... M. microps Alcock, 1894
description: Published as part of Macpherson, Enrique, Rodríguez-Flores, Paula C. & Machordom, Annie, 2017, New sibling species and new occurrences of squat lobsters (Crustacea, Decapoda) from the western Indian Ocean, pp. 1-61 in European Journal of Taxonomy 343 on pages 31-34, DOI: 10.5852/ejt.2017.343, http://zenodo.org/record/3834647