assemblages in freshwater lagoons in southern Brazil.
solida was parasitized by prokaryotic inclusions in the digestive epithelium, intracellular inclusions of bacteria-like organisms and ciliates in the gills, gregarines similar to Nematopsis parasitizing exclusively the connective tissues of most organs, and a turbellarian
similar to Paravortex in the intestine lumen.
Dero superterrenus C Metacypris maracaoensis C Indet.
All of his preliminary and final paintings of the nudibranchs and turbellarians
exist in the files of the Division of Mollusks, U.
The predatory turbellarian
studied here belongs to the monophyletic (Littlewood el at, 1999) suborder Kalyptorhynchia Graff, 1905 (Fig.
Common oyster predators in estuaries of the eastern United States include polyclad turbellarian
flatworms, mud crabs (Panopeus herbstii, Eurypanopeus depressus), the blue crab (Callinectes sapidus), the stone crab (Menipes mercenaria), and fishes, including sheepshead (Archosargus probatocephalus) and toadfish (Opsanus tau) (White and Wilson 1996).
Feeding behavior of a terrestrial turbellarian
Helices are ubiquitous elements of both molecular and macroscopic structure, defining the forms of DNA, polypeptides, collagen, most gastropod shells, and the spicular skeletons of some sponges and turbellarian
flatworms, as well as a wide range of patterns of plant architecture.
The parasitological analysis showed two species of copepods, Pseudomyicola spinosus and a calanoid species in the mantle cavity and gills; additionally, a turbellarian
species was also observed in the mantle cavity, none of these symbionts were related to tissue damage.
One of the principal groups of benthic macroinvertebrates, the Oligochaeta (Annelida, Clitellata) plays a relevant role in the aquatic system food webs, acting as a source of food for turbellarian
flatworms, chironomids, crabs, amphipod crustaceans, amphibians, fish and birds (Ezcurra de Drago et al.
Changes in the electrophoretic profiles of gill mucus proteases of the Eastern oyster Crassostrea virginica in response to infection by the turbellarian
The same is also true of, among others, cave-dwelling tricladid turbellarian
flatworms, isopod crustaceans of the group Sthenaselida and crangonid amphipods.