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COLURELLIDAE or LEPALLIDAE, HARRING, 1913 (family)

COLURELLA, BORY ST. VINCENT 1824

     Lorica shell-shaped, rounded or truncated, 
posteriorly rounded or extended into a point. 
Littoral, tychoplanktonic.Small rotifers, 
size 60-120 μm. Benthic.

57 a. Marine and brackish/estuarine species.
Body oval, laterally compressed, 
with a rigid shell-shaped lorica 
and a head plate which, though slightly 
stiffened, can be retracted together 
with the anterior apart of the body. 
Foot in 3 segments, about one-fourth 
of the length of the body. Toes long 
and of equal length, sharply pointed, 
sometimes fused. Total length 70-90, 
dorsal lorica length 60 µm, 
foot + toes 30 µm. Littoral in ponds (and rivers).
Rare.
- Laguna de Bay, Pasig River.
   Colurella colurus, (EHRENBERG, 1830)
         [1978a,b, 1980, 1984, 1986, 2009]

57 b. Freshwater species.
Length of body 70, width 35-37. 
Length of foot and toes
27-30 μm.
- Calamba River, Lake Danao
   Colurella obtusa (GOSSE, 1886)
         [1999]

LEPADELLA, (BORY ST. VINCENT 1826)

 

58 a. Benthic, 9 species.
- Calamba River, IRRI rice field, Danao Lake, Lake Lanao,
  Paoay Lake, La Mesa Dam, etc.
   Lepadella sp
         [1986, 1999]

LECANIDAE, (BARTOS, 1959) (family)
     Jaws malleate. Only littoral species.

LECANE, NITZSCH 1827.

59 a. A littoral genus, several species occurring 
between plants. 27 species recorded by Mamaril (1986)
(Littoral).
- Laguna de Bay, Pasig River, Calamba River,
  IRRI rice field, Danao Lake, Lake Lanao, etc.
   Lecane spp. (syn. Monostyla)
         [1941, 1974, 1978a+b, 1980, 1984, 1986,
          1999, 2008b, 2009]

2 toes on foot..........................Subgenus Lecane

 

Planktonic species (Mamaril and Fernando, 1978b).
Ricefields, ponds, lakes and reservoirs. Common.
- La Mesa Dam
   Lecane (Lecane) curvicornis (MURRAY, 1913).

 

       Planktonic species (Kutikova, 2002a). Very common.
- Laguna de Bay
   Lecane (Lecane) leontina (TURNER, 1892)

 

       Planktonic species (Kutikova, 2002a). Very common.
- Paoay Lake, Laguna de Bay (se picture)
   Lecane (Lecane) luna (MÜLLER, 1776)

 

Lecane luna from Laguna de Bay

 

Planktonic species (Mamaril and Fernando, 1978b).
In all types of freshwater, except in running waters. Very common.
- Laguna de Bay
   Lecane (Lecane) papuana (MURRAY, 1913).

 

Planktonic species (Mamaril and Fernando, 1978b).
In ponds, reservoirs, and lakes. Fairly common
- Lake Mainit, Lake Lanao.
   Lecane (Lecane) ungulata (GOSSE, 1887).

 

1 toe on foot........................Subgenus Monostyla:

Planktonic species (Kutikova, 2002a). Very common.
- Paoay Lake, IRRI rice fields.
   Lecane (Monostyla) bulla (GOSSE, 1886)
   [..., 2008b]

 

 
L. bulla (Photo by Rey D. S. Papa, 2007)

Planktonic species (Kutikova, 2002a). Common.
- Calamba River, Lake Danao
   Lecane (Monostyla) clostercerca (SCHMARDA, 1859)

Planktonic species (Kutikova, 2002a). In reservoirs and lakes. Common.
- Laguna de Bay
   Lecane (Monostyla) stenroosi

 

                   [see 1978a+b, 1980, 1984a, 1986a, 1999
                    for further details]

 

 

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