triclad


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triclad

an order of TURBELLARIANS with well-developed sense organs; the planarians.
References in periodicals archive ?
Amphimixis and pseudogamy in freshwater triclads: experimental reconstitution of polyploid pseudogamic biotypes.
The effect of temperature on the life-cycle of four species of lake-dwelling triclads. J.
Sperm resorption in triclads (Platyhelminthes, Tricladida).
The embryonic development of the triclad Schmidtea polychoa.
Morphological descriptive studies on the embryonic development of freshwater triclads have, until now, been mainly undertaken in organisms of the families Planariidae (Planaria and Polycelis) and Dendrocoelidae (Dendrocoelum).
The embryonic development of triclads denotes a very variable duration, being slower at low temperatures.
Triclads and polyclads occur generally on hard bottom, under stones, or associated with macrophytes, algae or gravel (Hyman, 1951; Du-Bois Reymond Marcus and Marcus, 1968).
Freshwater and land triclads were studied mainly in the Brazilian states of Sao Paulo and Rio Grande do Sul (Carbayo and Froehlich, 2008; Baptista et al.
In contrast to triclads and polyclads, which are collected directly, microturbellarians should be sampled with some substratum using a fine-meshed sweep-net (Young, 2001).
Age-specific mortality, to varying degrees, has been examined in studies of reproduction in freshwater triclads (Calow and Woollhead 1977) and red deer hinds (Clutton-Brock et al.
The relationship between ration, reproductive effort, and age-specific mortality in the evolution of life-history strategies--some observations on freshwater Triclads. Journal of Animal Ecology 46:765-781.