COLLOTHECACEA, REMANE 1933 (order)
COLLOTHECIDAE, (BARTHOS, 1959) (family)
Jaws (trophi) uncinate. Only unci well developed.
Not important since the food is already pre-digested.
COLLOTHECA, HARRING 1913.
Foot without toes, foot ends in a holdfast or in a circle of cilia or neither. Lorica absent, i.e. cuticle thin and flexible, not usually retaining its shape well after preservation. A gelatinous, transparent case around foot and part of the body. Head more or less funnel-like. Foot long and slender, stalk-like. Single animal in very transparent gelatinous case, usually contracted. Most species littoral, few planktonic species.
77. In gelatinous case, most species benthic,
only a few planktonic in lakes.
The genus has been found planktonic,
but the species not yet determined.
- Laguna de Bay, Sampaloc Lake
Collotheca fc. pelagica
[1980, 1984]
fc = for compare = NOT SURE ABOUT THE SPECIES IDENTIFICATIONKey to planktonic, cosmopolitan Collotheca species
(None yet recorded from the Philippines.
Described species mostly resemble C. pelagica.)
77 a. Corona with 2 lobes. Size 200-500 μm.
Collotheca mutabilis, (HUDSON, 1885)
77 b. Corona unlobed, cilia in 5 groups. Size 300-500 μm.
Collotheca pelagica, (ROUSSELET, 1893)
C. pelagica from Sampaloc Lake
77 c. Corona with 1 lobe. Size 120-170 μm,
Collotheca libera, (ZACHARIAS, 1894)
To 78a
