rhagon n. [Gr. rhax, grape] (PORIF) A larval stage of a sponge, conical in shape and tapering from a broad base to the summit bearing the single osculum.
rhammites n.pl. [Gr. rhamma, thread] (PLATY: Turbellaria) Long, slender, sometimes sinuous rhabdoids, longer than the thickness of the epithelium.
rhamphoid a. [Gr. rhamphos, beak; eidos, form] Beak-shaped.
rhaphe n. [Gr. rhapis, rod] (ARTHRO: Insecta) A sclerotic bar on the dorsal surface of the silk press of caterpillars.
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