Sphaeromatidae

Dynamene bidentata, copyright David Fenwick.


Belongs within: Sphaeromatidea.
Contains: Monolistrini.

The Sphaeromatidae are a group of marine isopods capable of rolling into a compact ball (Menzies & Kruczynski 1983).

Characters (from Menzies & Kruczynski 1983, as Sphaeromidae): First pleonite distinct; second to fifth fused, forming vault with pleotelson containing pleopods. Males with uropodal endopod fused to peduncle; exopod movable.

<==Sphaeromatidae [Sphaeromidae] MD01
    |--+--Sphaeroma Bosc 1802 [Sphaeromatinae] BP03
    |  |    |--*S. serratum (Fabricius 1787) MK83, BP03 [=Oniscus serratus MK83]
    |  |    |--S. quadridentata Say 1818 [=S. quadridentatum] MK83
    |  |    |--S. quoianum Milne Edwards 1840 BP03
    |  |    |--S. rugicauda D01
    |  |    |--S. terebrans Bate 1866 [incl. S. destructor Richardson 1897] MK83
    |  |    `--S. walkeri Stebbing 1904 MK83
    |  `--Dynamene Leach 1814 [Dynameninae] BP03
    |       |--D. bidentata B78
    |       |--D. curalii Holdich & Harrison 1980 BP03
    |       |--D. dilatata H47
    |       |--D. edwardsi BBB-S95
    |       |--D. glabra H47
    |       `--D. sheareri Hatch 1947 H47
    `--Cassidininae BP03
         |  i. s.: Cassidina Milne Edwards 1840 BP03
         |           `--C. typa Milne Edwards 1840 BP03
         |         Cassidinidea Hansen 1905 BP03
         |           |--C. korpie Bruce 1993 BP03
         |           |--C. lunifrons (Richardson 1900) MK83
         |           `--C. ovalis (Say 1818) MK83
         |         Paraleptosphaeroma Buss & Iverson 1981 BP03
         |           |--P. brucei Kussakin & Malyutina 1993 BP03
         |           `--P. indica Müller 1990 BP03
         `--Monolistrini S86

Sphaeromatidae incertae sedis:
  Thermosphaeroma thermophilum S86, F01
  Gnorimosphaeroma S86
  Exosphaeroma BP03
    |--E. alba Menzies & Glynn 1968 MK83
    |--E. amplicauda (Stimpson 1857) BP03
    |--E. chilensis HS01
    |--E. crenulata (Richardson 1902) MK83
    |--E. diminuta Menzies & Frankenberg 1966 MK83
    |--E. gigas BP03
    |--E. obtusum (Dana 1853) FZA07
    |--E. oregonensis H47
    `--E. productatelson Menzies & Glynn 1968 MK83
  Cymodoce Leach 1814 MK83
    |--*C. truncata Leach 1814 MK83
    |--C. faxoni (Richardson 1905) (see below for synonymy) MK83
    `--C. japonica H47
  Paradynemene benjamensis Richardson 1905 MK83
  Geocerceis barbarae Menzies & Glynn 1968 MK83
  Cerceis carinata Glynn 1970 MK83
  Discerceis linguicauda (Richardson 1901) MK83
  Paracerceis Hansen 1905 MK83
    |--*P. caudata (Say 1818) (see below for synonymy) MK83
    |--P. edithae Boone 1930 MK83
    |--P. nuttingi (Boone 1921) MK83
    `--P. sculpta (Holmes 1904) HJ08
  Dynamenella MK83
    |--D. acutitelson Menzies & Glynn 1968 MK83
    |--D. angulata (Richardson 1901) MK83
    |--D. barnardi Menzies & Glynn 1968 MK83
    |--D. dianae (Menzies 1962) MK83
    |--D. perforata (Moore 1902) [incl. D. moorei Richardson 1905] MK83
    |--D. plicatura Glynn 1970 MK83
    |--D. quadripunctata Menzies & Glynn 1968 MK83
    `--D. tumidicauda Glynn 1970 MK83
  Dies barnardi Carvacho 1977 MK83
  Paradella dianae (Menzies 1962) HJ08
  Lekanesphaera teissieri (Bocquet & Lejuez 1967) BP03
  Zuzara venosa BP03

Cymodoce faxoni (Richardson 1905) [=Exosphaeroma faxoni; incl. E. antillense Richardson 1912, E. barrerae Boone 1918] MK83

*Paracerceis caudata (Say 1818) [=Naesa caudata, Ciliceae caudata, Cymodocea caudata; incl. Cy. bermudensis Ives 1892, Dynamene bermudensis, Paracerceis tomentosa Schultz & McCloskey 1967, Exosphaeroma yucatanum Richardson 1905] MK83

*Type species of generic name indicated

REFERENCES

[BBB-S95] Boubezari, K., G. Bitar & D. Bellan-Santini. 1995. Structure et organisation de trois moulières (Mytilus galloprovincialis et Perna perna) de la région d'Alger. Mésogée 54: 63–72.

[BP03] Brandt, A. & G. C. B. Poore. 2003. Higher classification of the flabelliferan and related Isopoda based on a reappraisal of relationships. Invertebrate Systematics 17: 893–923.

[B78] Brusca, R. C. 1978. Studies on the cymothoid fish symbionts of the eastern Pacific (Crustacea: Isopoda: Cymothoidae) II. Systematics and biology of Lironeca vulgaris Stimpson 1857. Occasional Papers of the Allan Hancock Foundation New Series 2: 1–19.

[D01] Dollfus, A. 1901. Isopodák [Isopodes]. In: Horváth, G. (ed.) Zichy Jenő Gróf Harmadik Ázsiai Utazása [Dritte Asiatische Forschungsreise des Grafen Eugen Zichy], Band II. Zichy Jenő Gróf Harmadik Ázsiai Utazásának Állattani Eredményei [Zoologische Ergebnisse der Dritten Asiatischen Forschungsreise des Grafen Eugen Zichy], pp. 371–374. Victor Hornyánszky: Budapest, and Karl W. Hierseman: Leipzig.

[F01] Fashing, N. J. 2001. Morphological adaptations associated with mate-guarding behaviour in the genus Hericia (Acari: Algophagidae). In: Halliday, R. B., D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff (eds) Acarology: Proceedings of the 10th International Congress pp. 176–179. CSIRO Publishing: Melbourne.

[FZA07] Fiege, D., H. Zibrowius & P. M. Arnaud. 2007. New deep-water records of cocoons of undescribed species of Fecampiidae from Antarctica to the Bay of Biscay (Platyhelminthes, Turbellaria, Rhabdocoela). Senckenbergiana Biologica 87 (1): 1–6.

[H47] Hatch, M. H. 1947. The Chelifera and Isopoda of Washington and adjacent regions. University of Washington Publications in Biology 10 (5): 155–274.

[HS01] Hayward, B. W., A. B. Stephenson, M. S. Morley, W. M. Blom, H. R. Grenfell, F. J. Brook, J. L. Riley, F. Thompson & J. J. Hayward. 2001. Marine biota of Parengarenga Harbour, Northland, New Zealand. Records of the Auckland Museum 37: 45–80.

[HJ08] Huisman, J. M., D. S. Jones, F. E. Wells & T. Burton. 2008. Introduced marine biota in Western Australian waters. Records of the Western Australian Museum 25 (1): 1–44.

[MK83] Menzies, R. J., & W. L. Kruczynski. 1983. Isopod Crustacea (exclusive of Epicaridea). Memoirs of the Hourglass Cruises 6 (1): 1–126.

[S86] Sket, B. 1986. Isopoda: Sphaeromatidae. In: Botosaneanu, L. (ed.) Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) pp. 423–427. E. J. Brill / Dr. W. Backhuys: Leiden.

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