Centropagidae

Male Boeckella gracilipes, from here.

Belongs within: Copepoda.

The Centropagidae are a group of pelagic copepods found in both fresh and salt water.

Characters (from J. M. Bradford-Grieve): Female with rostrum with 2 filaments; rostral margin not extended. Cephalosome and pedigerous somite 1 separate; pedigerous somites 4 and 5 separate. Posterior corners of prosome in lateral view bluntly rounded, or with 1 acute point, or divided into 2 protrusions; dorsal view symmetrical, or asymmetrical. Urosome with 3 free somites, or with 4 free somites. Genital double-somite asymmetrical in dorsal view; gonopores close together and totally covered by single genital operculum; without seminal receptacles. Caudal rami symmetrical. Antenna 1 with 24-25 free segments; ancestral segments X and XI partly fused. Antenna 2 exopod with 6-7 free segments; 10-11 setae; basis and endopod separate. Mandible basis with 4 setae; endopod terminal segment with 7-9 setae. Maxilla 1 basal exite seta present; exopod extends short of endopod distal border. Maxilla 2 coxal epipodite seta absent; endopod setae normal, or claw-like. Maxilliped coxal endite 2 with 3 setae. Leg 1 basis inner distal seta inserted directly on surface of joint; outer seta absent; endopod with 3 segments; exopod with 3 segments; exopod segment 1 with outer distal spine, or without outer distal spine; exopod segment 3 with 4 inner setae. Leg 2 endopod with 3 segments; exopod with 3 segments; exopod segment 3 with 2 outer spines, or with 3 outer spines. Leg 3 basis outer distal spine absent; endopod segment 3 with 5-8 setae. Legs 3 and 4 endopod with 3 segments; exopod with 3 segments; exopod segment 3 with 2 outer spines, or 3 outer spines; exopod segment 3 with 5 inner setae. Leg 4 endopod segment 3 with 4-7 setae. Legs 2-4 surfaces naked; terminal spine with outer border serrated. Leg 5 present; similar to legs 2-4; coxa inner border without seta; exopod segment 2 inner distal border extended into large spine completely fused to segment. Leg 5 exopod segment 3 outer border with 2 spines; inner border with 2 setae, or 4 setae. Male with urosome symmetrical in dorsal view, or asymmetrical in dorsal view. Mouthparts well-developed. Antenna 1 geniculate on right. Maxilliped endopod segments 5 and 6 with outer setae normal. Right leg 5 uniramous, or biramous; endopod 2-segmented, or 3-segmented; exopod 1-3-segmented, may be similar to other legs or may be highly modified into grasping organ. Left leg 5 uniramous, or biramous; endopod 2-segmented, or 3-segmented; exopod 2-3-segmented, may be similar to other legs or may be highly modified.

<==Centropagidae
    |--Pseudoboeckella F45
    |--Hemiboeckella searli Sars 1912 F45
    |--Eurytemora D01
    |    |--E. affinus K-M02
    |    |--E. herdmani B26
    |    `--E. velox D01
    |--Gladioferens Henry 1919 N44
    |    |--G. brevicornis Henry 1919 N44
    |    |--G. gracilis Kiefer 1931 N44
    |    |--G. inermis Nicholls 1944 N44
    |    |--G. pectinatus (Brady 1899) [=Centropages pectinatus] N44
    |    |--G. spinosus Henry 1919 N44
    |    `--G. subsalaria Percival 1937 N44
    |--Centropages Kroyer 1849 F44
    |    |--C. australiensis Fairbridge 1944 F44
    |    |--C. bradyi (Wheeler 1901) B26
    |    |--C. dorsispinatus ZS10
    |    |--C. hamatus (Lilljeborg 1853) F44
    |    |--C. kroyeri (Giesbrecht 1892) F44
    |    |--C. longicornis (Mori 1932) F44
    |    |--C. ponticus (Karawiew 1895) F44
    |    `--C. typicus (Kroyer 1848) F44
    |--Brunella Smith 1909 N44
    |    |--*B. tasmanica Smith 1909 N44
    |    |--B. ampulla Searle 1911 N44
    |    |--B. australis Searle 1911 N44
    |    |--B. expansa Sars 1912 N44
    |    |--B. longicornis Searle 1912 N44
    |    |--B. salina Nicholls 1944 N44
    |    |--B. steeli Henry 1924 N44
    |    `--B. viridis Searle 1911 N44
    `--Boeckella Deguerne & Richard 1889 F45
         |--B. ambigua Percival 1937 F45
         |--B. asymmetrica Searle 1914 F45
         |--B. bergi Richard 1897 [incl. B. bergi var. cornuta Brehm 1937, B. bergi var. serrifera Brehm 1937] F45
         |--B. coronaria Henry 1922 F45
         |--B. delicata Percival 1937 F45
         |--B. dentifera Brehm 1935 F45
         |--B. fluvialis Henry 1922 F45
         |--B. gracilipes Daday 1901 F45
         |--B. gracilis Daday 1902 F45
         |--B. hamata Brehm 1928 F45
         |--B. insignis Smith 1909 F45
         |--B. lacuna Fairbridge 1945 F45
         |--B. longiseta Smith 1909 F45
         |--B. major Searle 1938 F45
         |--B. meteoris Kiefer 1927 F45
         |--B. michaelseni Mrazek 1901 F45
         |--B. minuta Sars 1896 F45
         |--B. nyoraensis Searle 1912 F45
         |--B. occidentalis Marsh 1906 F45
         |--B. opaqua Fairbridge 1945 F45
         |--B. orientalis Sars 1903 F45
         |--B. pellucida Fairbridge 1945 F45
         |--B. poopoensis Marsh 1906 F45
         |--B. propinqua Sars 1904 F45
         |--B. pseudocheles Searle 1912 F45
         |--B. rahmi Brehm 1935 F45
         |--B. robusta Sars 1896 F45
         |--B. rubra Smith 1909 F45
         |--B. saycei Sars 1908 F45
         |--B. symmetrica Sars 1908 F45
         |--B. tenera Sars 1912 F45
         `--B. triarticulata Thompson 1883 (see below for synonymy) F45

Boeckella triarticulata Thompson 1883 [incl. B. triarticulata var. oblonga Brehm 1939, B. triarticulata var. quarta Brehm 1939, B. triarticulata var. sarsi Brehm 1939] F45

*Type species of generic name indicated

REFERENCES

[B26] Bigelow, H. B. 1926. Plankton of the offshore waters of the Gulf of Maine. Bulletin of the Bureau of Fisheries 40 (2): 1–509.

[D01] Daday, E. 1901. Édesvizi mikroszkópi állatok [Mikroskopische Süsswasserthiere]. In: Horváth, G. (ed.) Zichy Jenő Gróf Harmadik Ázsiai Utazása [Dritte Asiatische Forschungsreise des Grafen Eugen Zichy] vol. 2. Zichy Jenő Gróf Harmadik Ázsiai Utazásának Állattani Eredményei [Zoologische Ergebnisse der Dritten Asiatischen Forschungsreise des Grafen Eugen Zichy] pp. 375–470. Victor Hornyánszky: Budapest, and Karl W. Hierseman: Leipzig.

[F44] Fairbridge, W. S. 1944. Marine copepods from Western Australia. Series II. Two pelagic copepods from Cockburn Sound. Journal of the Royal Society of Western Australia 28: 209–217.

[F45] Fairbridge, W. S. 1945. West Australian fresh-water calanoids (Copepoda). I.–Three new species of Boeckella, with an account of the developmental stages of B. opaqua n. sp. and a key to the genus. Journal of the Royal Society of Western Australia 29: 25–65.

[K-M02] Klein-MacPhee, G. 2002. Temperate basses. Family Moronidae. In: Collette, B. B., & G. Klein-MacPhee (eds) Bigelow and Schroeder’s Fishes of the Gulf of Maine 3^rd ed. pp. 374–389. Smithsonian Institute Press: Washington.

[N44] Nicholls, A. G. 1944. Littoral Copepoda from South Australia. (II) Calanoida, Cyclopoida, Notodelphyoida, Monstrilloida and Caligoida. Records of the South Australian Museum 8 (1): 1–62.

[ZS10] Zhang, G.-T., S. Sun, Z.-L. Xu & Q.-L. Zhang. 2010. Unexpected dominance of the subtropical copepod Temora turbinata in the temperate Changjiang River estuary and its possible causes. In: China-Russia Bilateral Symposium: Proceedings of the China-Russia Bilateral Symposium of "Comparison on Marine Biodiversity in the Northwest Pacific Ocean", 10–11 October 2010, Qingdao (China) pp. 100–102. Institute of Oceanology, Chinese Academy of Sciences; A. V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences.