Limnomedusae

Limnocnida tanganyicae, from Parker (1907).
Belongs within: Medusozoa.

The Limnomedusae are a poorly defined group of hydrozoans with a biphasic life cycle whose medusae have ecto-endodermal statocysts and/or gametogenic tissue along their radial canals, and polyps not covered by a theca (Daly et al. 2007).

<==Limnomedusae [Limnohydrina] DB07
|–Vallentinia Browne 1902 P79
|–Monobrachium Mereschkowsky 1877 P79 [Monobrachiidae DB07]
|–Scolionema suvaense PP64
|–Gonionemus Agassiz 1862 P79
|    `–G. vertens PP64
|–Olindias Müller 1861 P79 [Olindiasidae DB07]
|    `–O. phosphorica PP64
|–Aglauropsis Müller 1865 P79
|    `–A. aeora LS09
|–Armorhydra Swedmark & Teissier 1958 CS-P86 [Armorhydridae DB07]
|    `–A. janowiczi Swedmark & Teissier 1958 CS-P86
|–Microhydrula CS-P86 [Microhydrulidae DB07]
|    `–M. pontica CS-P86
`–Limnocnida Günther 1893 P79 [Limnocnididae G88]
|–L. tanganyicae LS09
`–L. victoriae G88

*Type species of generic name indicated

REFERENCES

[CS-P86] Clausen, C., & L. v. Salvini-Plawen. 1986. Cnidaria. In: Botosaneanu, L. (ed.) Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) pp. 33–42. E. J. Brill/Dr W. Backhuys: Leiden.

[DB07] Daly, M., M. R. Brugler, P. Cartwright, A. G. Collins, M. N. Dawson, D. G. Fautin, S. C. France, C. S. McFadden, D. M. Opresko, E. Rodriguez, S. L. Romano & J. L. Stake. 2007. The phylum Cnidaria: a review of phylogenetic patterns and diversity 300 years after Linnaeus. Zootaxa 1668: 127–182.

[G88] Gray, J. 1988. Evolution of the freshwater ecosystem: the fossil record. Palaeogeography, Palaeoclimatology, Palaeoecology 62: 1–214.

[LS09] Leclère, L., P. Schuchert, C. Cruaud, A. Couloux & M. Manuel. 2009. Molecular phylogenetics of Thecata (Hydrozoa, Cnidaria) reveals long-term maintenance of life history traits despite high frequency of recent character changes. Systematic Biology 58 (5): 509–526.

[PP64] Peres, J. M., & J. Picard. 1964. Nouveau manuel de bionomie benthique de la mer Mediterranee. Recueil des Travaux de la Station Marine d’Endoume, Bulletin 31 (27): 5–137.

[P79] Petersen, K. W. 1979. Development of coloniality in Hydrozoa. In: Larwood, G., & B. R. Rosen (eds) Biology and Systematics of Colonial Organisms pp. 105–139. Academic Press: London.

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