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CHYDORIDAE, STEBBING 1902 (family)

Second antenna with dorsal branch 3-segmented and ventral branch
3-segmented. Mostly littoral species. Feeding on epi­phytic algae, detritus and bacteria, scraped off the surface of macrophytes and stones (Alona, Kurtzia, Alonella etc.)

 

 

 

98 a. Anal teeth on postabdomen gradually diminishing proximally...Ephemeroporus

 

 EPHEMEROPORUS FREY, 1982
    (syn. CHYDORUS, (LEACH 1816))
     Systematically status discussed by Smirnov (1996).

 

     The only planktonic species in the genus, also littoral.
With spines on lower corner of the valves. Common.
- Laguna de Bay, Paoay Lake, Lake Mainit.
  Ephemeroporus barroisi, (RICHARD, 1894)
  ( syn. Chydorus barroisi)
        [1938c, 1971,1973, 1978, 1980, 1984, 1986, 2008b].

 

E. barroisi from Laguna de Bay

 

98 b. Anal teeth on postabdomen gradually diminishing proximally, but several much longer teeth before anal aperture.....................Chydorus

 

CHYDORUS (LEACH 1816).)

 

      Without spine on lower corner of the valves. Philippine species littoral, see Mamaril and Fernando (1978a,b, 1986a). One species is, however, found in plankton.
- Paoay Lake (.
    Chydorus ventricosus  DADY, 1894
             [2008b].

 

 

98 c. Pleuroxus, Alonella, Dadaya, Dunhevedia, Leudigia, Alona, Kurzia, Camptocercus, Euryalona, Indialona, Biapertura,
(B. pseudoverrucosa, Paoay Lake, Aquino et al. 2008b),Oxyurella.
All benthic genera, but might be taken in plankton
samples in shallow lakes in very low numbers
See Mamaril and Fernando [1978a,b, 1986a] for further information.

Alona sp. (?)

MACROTRICIDAE, Norman and Brady 1867  (family).
A benthic family, but might be taken in plankton
samples in shallow lakes in very low numbers

 

99 a. Echinisca, Macrothrix, Grimaldia, Guernella, Ilyocryptus.
See Mamaril and Fernando [1978a,b, 1986a] for further information.

 
Macrotrix sp. 

 

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