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DIAPTOMIDAE, G. O. SARS 1903 (family)

        Inner branch of first leg with 2 segments, inner branch of second, third and fourth leg with 3 segments. Caudal branches less than two times longer than wide.
Feeds by selective filtration of algae, detritus and becteria. Shows vertical diurnal migration (Carlos 1982, Lewis 1979).
(Figure: Nauplii)

  

Calanoid copepod, Taal Lake (Photo: Rey Donne S. Papa, 2007)

 

FILIPINODIAPTOMUS, LAI, MAMARIL and FERNANDO 1979
(syn. Diaptomus)

        Left outer branch of male fifth leg without circular saw-like lobe. Hyaline process of the 3rd last segment of the right first
antenna of male short and serrated. Basis of male fifth leg
with 3 sigmoid protru­sions. Front part of female abdomen
with peg­-like spines on genital segment.

 

 

119 a. Last segment of right fifth leg of male with short and broad spine besides the terminal hook. Size of female 1400 μm. Endemic in Bulacan-Rizal­-Laguna area. Mamaril (1978a) reported it as far north as Nueva Ecija and Tarlac. Recently Aquino et al. (2008b) found it together with Tropodiaptomus australis in Paoay Lake. Found in lakes, reservoirs, and rice fields. Endemic.
 (Figures 119a1, 119a2, 119a3, 119a4, 119a5, 
119a6, 119a7, 119a8,)
- Laguna de Bay (Nauplii, overview, copepodit,
  female, egg, male, 5th leg), La Mesa Dam, Paoay Lake.
   Filipinodiaptomus insulanus, (WRIGHT, 1928)
   (syn. Diaptomus sensibilis)
             [1928a,b, 1930, 1941, 1978a,b,

                     1979a, 1980, 1984, 1986, 2008b]


 

F. insulanus nauplii
from Laguna de Bay

 

F. insulanus C1 from Laguna de Bay

 

F. insulanus Adult from Laguna de Bay

 

F. insulanus Female from Laguna de Bay


119 b. Last segment of right fifth leg of male with long 
and sharply pointed spine besides the terminal hook.

       - Danao Lake, Leyte. Endemic.
   Filipinodiaptomus vexillifer, (BREHM, 1933)
   (syn. Diaptomus vexillifer)

                          [1933, 1941]

Note:  F. vexillifer has not been established as a 
valid name for Diaptomus vexillifer, BREHM 1933, 
and the existence of the species has not 
been confirmed (Mamaril, personal communication).

 

 

MONGOLODIAPTOMUS, KIEFER 1932

120 a. Only one species in the Philippines, 
which seems to be closely related to 
Monglodiaptomus formosanus, KIEFER 1937. 
Planktonic. Distribution restricted. Rare.
- Ilocos Norte, Baguio City.
   Mongolodiaptomus birulai, (RYLOV, 1924)
   (syn. Diaptomus birulai, 
    syn. Eudiaptomus birulai)
             [1978a,b, 1979a, 1986]

 

 

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