Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Neodiaptomus prateek n. sp., a new freshwater copepod from Assam, India, with critical review of generic assignment of Neodiaptomus spp. and a note on diaptomid species richness (Calanoida: Diaptomidae)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Cover image Placeholder

Neodiaptomus prateek n. sp. is described based on a plankton sample collected from Deepor Beel, a floodplain lake in the north-eastern, Indian state of Assam, which falls within the key biodiversity area of the Indo-Burma Hotspot. The new species fulfils all the principal criteria of the genus Neodiaptomus Kiefer, 1932, as revised by Kiefer (1939). It has, however, a spectacular autapomorphic feature, which is perhaps unparalleled in Diaptomidae as a whole – a massive coxal plate ending in a thumb-like spinulose structure on the caudal surface of the male left P5. The new taxon also has two homoplastic characters that are hitherto unknown within the genus: the female fourth pediger has a prominent mid-dorsal process, and the third endopodal segment of P2-P4 has six instead of seven setae, the proximal outer seta being absent. The affinities of the new species with its congeners are discussed. Furthermore, the generic assignment of all the 13 species of Neodiaptomus listed in the latest World Copepoda database (Walter, 2012) is critically reviewed. Of these, five species are recognised as valid, six are relegated to species inquirendae, and one each is a nomen dubium and a synonym. Two lineage groups are recognised within the genus, one belonging to Southeast Asia and the other mostly confined to India. Surprisingly, the new species was accompanied by a record number of seven other diaptomid species in the same sample; the probable biogeographic and ecological implications of this high species richness are briefly discussed.

Affiliations: 1: Department of Zoology, Acharya Nagarjuna University, Nagarjunanagar 522 510, India


Full text loading...


Data & Media loading...

1. Baird W. 1850. The Natural History of the British Entomostraca: i- viii, 1- 364, pls. 1-36. The Royal Society, London.
2. Bhattacharya T. , Saha R. K. , Dussart B. H. . 1990. "On Neodiaptomus schmackeri(Poppe & Richard, 1892) (Crustacea, Copepoda)". Hydrobiologia Vol 196: 73- 78.
3. Bowman T. E. 1986. "Freshwater calanoid copepods of the West Indies". Syllogeus Vol 58: 237- 246.
4. Brady G. S. 1886. "Notes on Entomostraca collected by Mr. A. Haly in Ceylon". Journal of the Linnaean Society (Zoology), London Vol 19: 293- 315.
5. Brehm V. 1921. "Ergebnisse der Expedition Handel-Mazzetti’s nach China 1914 bis 1918, unternommen auf Kosten der Akademie der Wissenschaften in Wien. Diagnosen neuer Entmostraken. I. Teil". Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftlichen Klasse Vol 58: 194- 196.
6. Brehm V. . 1933. "Mitteilungen von der Wallacea-Expedition Woltereck. Mitteilung IV. Einige neue Diaptomiden". Zoologischer Anzeiger Vol 103: 295- 304.
7. Brehm V. . 1951. " Neodiaptomus lindbergi, ein neuer Diaptomidae aus Indien". Anzeiger der österreichische Akademie der Wissenschaften, Wien. Vol 88: 158- 160.
8. Burckhardt G. 1913. "Zooplankton aus ost-und sűdasiatischen Binnengewässern". Zoologische Jahrbücher Systematik Vol 3: 34- 472.
9. Dang N. T. , Ho T. H. . 1998. "Review on the taxonomy and geographical distribution of two species of Diaptomidae crustaceans (Copepoda Calanoida) from freshwaters of Vietnam. Vietnam National Centre for Natural Science and Technology of Vietnam". Journal of Biology Vol 20: 1- 6 (in Vietnamese, English summary).
10. Dang N. T. , Ho T. H. . 2001. "Two new crustacean species of Diaptomidae found in the river section inside of the Phongnha Cave, Quangbinh Province, Vietnam. National Centre for Natural Science and Technology of Vietnam". Journal of Biology Vol 23: 1- 5 (in Vietnamese, English summary).
11. Dumont H. J. , Ranga Reddy Y. . 1993. "A reappraisal of the genus PhyllodiaptomusKiefer, 1936, with the description P. wellekensaen. sp. from India and a redescription of P. tunguidusShen & Tai, 1964, from China (Copepoda, Calanoida)". Hydrobiologia Vol 263: 65- 93.
12. Dussart B. , Defaye D. . 2002. World Directory of Crustacea Copepoda of Inland Waters. I-Calaniformes, pp.  1- 276. Backhuys Publishers, Leiden.
13. Flößner D. 1984. " Neodiaptomus intermediusn. sp. (Calanoida, Copepoda) from South India". Hydrobiologia Vol 108: 259- 263.
14. Fox J. W. , Nelson W. A. , McCaulley E. . 2010. "Coexistence mechanisms and the paradox of the plankton: quantifying selection from noisy data". Ecology Vol 91: 1774- 1786.
15. Gogoi R. 2007. "Conserving Deepar Beel Ramsar Site, Assam". Current Science Vol 93: 445- 446.
16. Gurney R. 1907. "Further notes on Indian freshwater Entomostraca". Records of Indian Museum, Calcutta Vol 1: 21- 33.
17. Gurney R. . 1916. "On some freshwater Entomostraca from Ceylon". Proceedings of the zoological Society of London Vol 1: 333- 343, pls. 1-3.
18. Hardin G. 1960. "The competitive exclusion principle". Science Vol 131: 1292- 1297.
19. Hutchinson G. E. 1961. "The paradox of the plankton". American Naturalist Vol 95: 137- 145.
20. Huys R. , Boxshall G. A. . 1991. Copepod Evolution, pp.  1- 468. The Ray Society, London.
21. ICZN (International Commission on Zoological Nomenclature). 1999. International Code of Zoological Nomenclature. 4th Edition. International Trust for Zoological Nomenclature, London, xxix + pp. 306.
22. Kiefer F. 1932a. "Versuch eines Systems der Diaptomiden (Copepoda, Calanoida)". Zoologische Jahrbücher Systematik Vol 63: 451- 520.
23. Kiefer F. . 1932b. "Zwei neue Diaptomiden (Copepoda, Calanoida) aus Indien". Zoologischer Anzeiger Vol 100: 265- 270.
24. Kiefer F. . 1935a. "Beiträge zur Copepodenkunde (XVII)". Zoologischer Anzeiger Vol 109: 88- 93.
25. Kiefer F. . 1935b. "Fünf neue Ruderfußkrebse aus Indien (Crustacea, Copepoda)". Zoologischer Anzeiger Vol 109: 113- 121.
26. Kiefer F. . 1936a. "Indische Ruderfußkrebse (Crustacea, Copepoda)". Zoologischer Anzeiger Vol 113: 136- 142.
27. Kiefer F. . 1936b. "Indische Ruderfußkrebse (Crustacea, Copepoda). II". Zoologischer Anzeiger Vol 113: 226- 233.
28. Kiefer F. . 1936c. "Indische Ruderfußkrebse (Crustacea, Copepoda). IV". Zoologischer Anzeiger Vol 114: 77- 82.
29. Kiefer F. . 1939. "Freilebende Ruderfusskrebse (Crustacea, Copepoda) aus Nordwest und Sűdindien (Pandschab, Kaschmir, Ladak, Nilgirgebirge)". Memoirs of the Indian Museum, Calcutta Vol 13: 83- 203.
30. Kiefer F. . 1974a. "Zwei neue Ruderfusskrebse (Crustacea, Copepoda) aus Malaysia". Beiträge zur naturkundlichen Forschung in Südwestdeutschland Vol 33: 219- 222.
31. Kiefer F. . 1974b. "Eine neue Diaptomidenart aus Malaysia (Crustacea, Copepoda, Calanoida)". Zoologischer Anzeiger Vol 192: 420- 424.
32. Kikuchi K. 1928. "Freshwater Calanoida of Middle and Southwestern Japan". Memoirs of the College of Science, Kyoto Imperial University, Series B Vol 4: 65- 79, pls. 18-22.
33. Lai H. 1986. "The freshwater Calanoida (Crustacea, Copepoda) of Indonesia". Indo-Malayan Zoology Vol 3: 39- 61.
34. Mani M. S. 1974. "Biogeographical evolution in India", pp.  698- 724. In, Mani M. S. (ed.), Ecology and Biogeography in India. Dr. W. Junk b. v. Publishers, The Hague.
35. Mashiko K. 1951. "Studies of the freshwater plankton of central China. II". Scientific Report of Kanazawa University Vol 1: 137- 154.
36. Pennak R. W. 1957. "Species composition of limnetic zooplankton communities". Limnology and Oceanography Vol 2: 222- 232.
37. Poppe S. A. , Richard J. . 1892. "Description du Diaptomus schmackerin. sp., recueilli par M. Schmacker dans le lac Tahoo (Chine)". Bulletin de la Societe Zoologique de France Vol 17: 149- 151.
38. Proongkiat K. , Sanoamuang L. . 2008. "Description of Neodiaptomus siamensis, a new diaptomid copepod (Copepoda, Calanoida) from temporary pools in northern Thailand". Crustaceana Vol 81: 177- 189.
39. Rajendran M. 1971. "Redescription of the freshwater calanoid Neodiaptomus schmackeriand comments on interrelationships and distributional pattern of the schmackerigroup of species". Crustaceana Vol 21: 92- 100.
40. Ranga Reddy Y. 1987. "A taxonomic revision of the genus AllodiaptomusKiefer (Copepoda, Calanoida), including the description of a new species from India". Crustaceana Vol 52: 113- 134.
41. Ranga Reddy Y. . 1988. "On the taxonomy of the genus MegadiaptomusKiefer, including the description of a new species (Copepoda, Calanoida) from India". Hydrobiologia Vol 166: 247- 262.
42. Ranga Reddy Y. . 1992. " Eodiaptomus shihin. sp. (Copepoda, Calanoida) from central India". Hydrobiologia Vol 231: 1- 11.
43. Ranga Reddy Y. . 1994. Copepoda: Calanoida: Diaptomidae. Key to the Genera Heliodiaptomus, Allodiaptomus, Neodiaptomus, Phyllodiaptomus, Eodiaptomus, Arctodiaptomusand Sinodiaptomus. Guides to the Identification of the Microinvertebrates of the Continental Waters of the World 5, pp.  1- 221. SPB Academic Publishing, The Hague.
44. Ranga Reddy Y. . 2000. " Neodiaptomus meggittiKiefer, 1932: a rare south-east Asian species from the Andaman Islands, India (Copepoda, Calanoida, Diaptomidae)". Crustaceana Vol 73: 257- 272.
45. Ranga Reddy Y. . 2011. "Gondwanan heritage in groundwater crustaceans of peninsular India". Current Science Vol 101: 156- 158.
46. Ranga Reddy Y. , Balihi M. H. , Yousuf A. R. . 1999. " Arctodiaptomus (Rhabdodiaptomus) michaelin. sp. (Copepoda, Calanoida) from Kashmir, India". Hydrobiologia Vol 190: 223- 231.
47. Ranga Reddy Y. , Dumont H. J. . 1999. "Redescription of Heliodiaptomus elegansKiefer, 1935, a rare south-east Asian calanoid copepod". Hydrobiologia Vol 394: 145- 152.
48. Ranga Reddy Y. , Sanoamuang L. , Dumont H. J. . 1998. "A note on the Diaptomidae of Thailand, including redescription of three species and description of a new species (Copepoda, Calanoida)". Hydrobiologia Vol 361: 201- 223.
49. Ranga Reddy Y. , Sanoamuang L. , Dumont H. J. . 2000. "Amended delimitation of Mongolodiaptomusagainst Neodiaptomusand Allodiaptomusand redescription of the little known Mongolodiaptomus uenoi(Kikuchi, 1936) from Thailand (Copepoda, Calanoida, Diaptomidae)". Hydrobiologia Vol 418: 99- 109.
50. Ranga Reddy Y. , Subba Reddy P. V. . 1992. "A note on the synonymy of some Neodiaptomusspp. (Copepoda, Calanoida) of the Indian subcontinent". Hydrobiologia Vol 231: 125- 129.
51. Roy T. 1978. Studies on Indian Copepods. Ph.D. Thesis, Calcutta University, Kolkata (unpublished).
52. Roy T. . 1999. Crustacea: Copepoda: Calanoida & Cyclopoida. State Fauna Series 3, pp.  285- 313. Fauna of West Bengal, Part 10. Zoological Survey of India, Calcutta.
53. Sanoamuang L. 1999. Species composition and distribution of freshwater Calanoida and Cyclopoida (Copepoda) of Northeast Thailand, pp. 217-230. In, F. R. Schram and J. C. von Vaupel Klein (eds.), Crustaceans and the Biodiversity Crisis. Vol. I. Proceedings of the Fourth International Crustacean Congress, Brill, Leiden.
54. Sanoamuang L. , Athibai S. . 2002. "A new species of Neodiaptomus(Copepoda, Diaptomidae) from temporary waters in northeast Thailand". Hydrobiologia Vol 489: 71- 82.
55. Sars G. O. 1889. "On some freshwater Ostracoda and Copepoda raised from dried Australian mud". Forhandlinger i Videnskabs-Selskabet i Christiana Vol 1889( 8): 3- 79, pls. 1-8.
56. Sars G. O. . 1903. An account of the Crustacea of Norway. IV. Copepoda Calanoida, pp.  1- 171, pls. 109. Bergen Museum, Bergen.
57. Sharma B. K. , Sharma S. . 2009. "Microcrustacea (Crustacea: Branchiopoda) of Deepor Beel, Assam, India: richness, abundance and ecology". Journal of Threatened Taxa Vol 1: 411- 418.
58. Sharma B. K. , Sharma S. . 2011. "Deepor Beel revisited: new records of rotifers (Rotifera: Eurotatoria) with remarks on interesting species". Journal of Threatened Taxa Vol 3: 1437- 1444.
59. Tordoff A. W. , Baltzer M. C. , Fellowes J. R. , Pilgrim J. D. , Langhammer P. F. . 2012. "Key biodiversity areas in the Indo-Burma Hotspot: process, progress and future directions". Journal of Threatened Taxa Vol 4: 2779- 2787.
60. Walter T. C. 2012. NeodiaptomusKiefer, 1932. In, T. C. Walter and G. Boxshall, World Copepoda database. Available online at accessed 20 April 2013).
61. Wilson J. B. 1990. "Mechanisms of species coexistence: twelve explanations for Hutchinson’s paradox of the plankton: evidence from New Zealand plant communities". New Zealand Journal of Ecology Vol 13: 17- 42.
62. Wilson M. S. 1953. "New and inadequately known North American species of the copepod genus Diaptomus ". Smithsonian Miscellaneous Collections Vol 122( 2): 1- 30.
63. Wilson M. S. , Yeatman H. C. . 1959. "Free-living Copepoda", pp.  735- 794. In, Edmondson W. T. (ed.), Freshwater Biology. John Wiley and Sons, New York, NY.

Article metrics loading...



Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation