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    EUCLANIDAE, EHRENBERG, 1838 (family)

    EUCHLANIS, EHRENBERG, 1832


Lorica with flattened ventral surface,
dorsal surface convex. Foot with 2 jointed segments.
Most species littoral, only one planktonic.

53 a. Dorsal plate of lorica in cross section not highly
domed (high about 80-100 m
). Body usual green in colour. 
Foot with 2 sections. Most species littoral.
Length (dorsal plate) 155-320 m. Toes 50-100 m.
In littoral among macrophytes. Very common.
- Paoay Lake, La Mesa Dam, Naujan, Lake Mainit,
  Lake Lanao, Calamba River, IRRI rice field,
  Pasig River(rare).
   Euchlanis dilatata, (EHRENBERG, 1832)
                  [1941a, 1978a+b, 1986a, 1999, 2009a]

53 b. Dorsal plate of lorica in cross section markedly domed
(high up to 200 m
). Body usual brown in colour. 
Foot with 2 sections. Most species littoral. Length
(dorsal plate) 246-315 m. Toes 65-75
m. In pelagic
(limnetic) zone.
Indicator of mesotrophic waters
(Sldeček (1983)
.
- Laguna de Bay (form lucksiana, HAUER, 1931, planktonic),
   Euchlanis lucksiana, HAUER, 1930
   
(syn. Euchlanis dilatata. var. lucksiana)

     
            [1941a]

53 c. Similar to E. dilatata, but with high crested
dorsal lorica plate and lateral extensions or
"wings". Ventral planar. Dorsal anteroposterior
keel prominent. Toes strong, pointed.
Body oval shaped. The 'V' shaped notch at
the posterior end of the dorsal plate is
characteristic. Size 175-210 m. Littoral.
- Calamba River.
    Euchlanis incisa, CARLIN, 1939
    (syn. Euchlanis triquetra)
                 [1999]

 

53 d.  With double cuticular fields between lorica plates.
With spine on tail, and three segments on foot.
Mainly found in brachish and seawater.
Littoral, rarely planktonic.
- Taal Lake.
   Tripleuchlanis plicata, (LEVANDER, 1894)
                      [2001a, 2011a]

 

53 e. Foot with 3 jointed segments.
      Strictly
litoral.
(Dipleuchlanis)..............................54

DIPLEUCHLANIS, de Beauchamp, 1910  

Foot with 3 jointed segments. Strictly litoral.

54 a. Dorsal plate concave and smaller than ventral.
Lateral edges of the two plates nearly parallel.
Toes very long an slender (Mamaril 1978a).
A strictly littoral genus similar to Euchlanis.
- Calamba River, Laguna Lake, IRRI Rice field.
 
Dipleuchlani
s  propatula (GOSSE, 1886)
                [1978a+b, 1986a, 1999]


To 55 a.