In the lower areas of the eastern slopes, the ground stratum has greater cover of Gahnia radula
and Forest Wire Grass Tetrarrhena juncea with a medium to tall shrub layer.
4 mm ML), ventral view, f) dorsal view, g) sucker from right arm III, h) upper beak, i) lower beak, j) radula
, k) funnel valve.
is probably not useful for distinguishing between species of Craspedochiton (H.
Species abundance and size frequencies were compared to abiotic and biotic reef characteristics and radula
morphology was examined during development from post larva to mature adult.
Rudkin, "A Soft-Bodied Mollusc with Radula
from the Middle Cambrian Burgess Shale," Nature 442 (2006): 159-63.
Over time, chitons have evolved to eat algae growing on and within rocks using a specialized rasping organ called a radula
, a conveyer belt-like structure in the mouth that contains 70 to 80 parallel rows of teeth.
The first section illustrates the differences between nautilids and ammonoids in respect to shell shape, ornamentation, body chamber, phragmocone, septa, the siphuncle and buoyancy regulation, apparatus, radula
and diet, arms and tentacles, eyes, development, mode of life, reproduction, dimorphism, stability, swimming, pathology and teratology, taphonomy, biostratigraphy, mass extinctions, and more.
Grimmia curviseta Boumann, Radula
jonesii Bouman, Dirkse & Radula
The central tooth of the radula
is relatively broad and is almost as wide as the lateral teeth.
London, August 23 ( ANI ): A "prototype" radula
found in 500-million-year-old fossils studied by researchers shows that the earliest radula
was not a flesh-rasping terror, but a tool for humbly scooping food from the muddy sea floor.
2009b), e um DS anticoagulante isolado da pele da raia asiatica Raja radula
foi reportado por Mansour et al.
2006, A soft-bodied mollusc with radula
from the Middle Cambrian Burgess Shale: Nature, v.