Some specimens were prepared for scanning electron microscopy (SEM) using standard techniques for digenetic
trematodes, then examined at different accelerating voltages (5-10 kV) and working distances, using a Leica Stereoscan 420 SEM.
Life cycle of Coitocaecum anaspidis Hickman, a New Zealand digenetic
Synopsis of the digenetic
trematodes of vertebrates.
malabaricus had previously been recorded as hosts for this digenetic
metacercariae (PAVANELLI et al.
To determine potential definitive hosts of the digenetic
trematode, Bolbophorus damnificus, 2 American white pelicans (Pelecanus erythrorhynchos), 2 double-crested cormorants (Phalacrocorax auritus), 2 great blue herons (Ardea herodias), and 2 great egrets (Ardea alba) were captured, treated with praziquantel, and fed channel catfish (Ictalurus punctatus) infected with B damnificus metacercariae.
COMBINED GEOCHEMICAL AND DIGENETIC
PROCESSES CONTROL THE CADMIUM ENRICHEMENT IN SEDIMENTARY ROCKS OF SOUTHERN TOGO, WEST AFRICA
trematode (Dactylogyrus vastator), and an aniskid nematode (Contracaecum spp.
effect is indicated by the presence of sutured or crenulated margin, penetration of cement and iron oxide.
Schistosomiasis is a parasitic infection caused by digenetic
blood trematodes, or flatworms, of the genus Schistosoma.
However, seasonal dynamics in the maturation cycles of digenetic
trematodes of fresh water fishes are well documented .
Alex Brown in his chapter "Redbeds: source of metals for sediment-hosted stratiform copper sandstone copper, sandstone lead, and sandstone uranium-vanadium deposits" reviews conventional genetic models for the deposit types listed in the title, illustrated by some case examples, For all deposit types, the ore-forming process involves the early oxidative diagenesis of first-cycle continental clastic sediments; the leaching of metals from labile minerals by saline groundwaters; and the transport of the metals by groundwater flow to a reductive subsurface environment, such as beds containing organic detritus or digenetic
pyrite, where the metals are precipitated.
The Aspidocotyles and the Malacotylea, or digenetic