Results 161 to 170 of about 1,349 (204)

Oogenesis in Macrotrachela quadricornifera (Rotifera, Bdelloidea)

Hydrobiologia, 1993
Bdelloids reproduce via obligate apomictic parthenogenesis. Oogenesis occurs through two subsequent equational divisions, with the extrusion of two polar bodies. Although the morphology of the bdelloid reproductive apparatus has been previously described, the eutely of the germarium has never been investigated.
Manuela Pagani, Claudia Ricci, Carlo Alberto Redi   +2 more
  +4 more sources

The trophi of Bdelloidea (Rotifera): a comparative study across the class

Canadian Journal of Zoology, 1998
The fine morphology of the trophi of bdelloid rotifers was investigated using scanning electron microscopy to provide a detailed description of the structure and to assess its variability within the class. Twelve genera of the four families of Bdelloidea were considered.
H Segers
exaly   +2 more sources

Ordnung Bdelloidea. Bestimmungsbücher der Bodenfauna Europas.

Pedobiologia, 1969
J. DONNER, BIRGER PEJLER
exaly   +2 more sources

The Philodinavidae (Rotifera Bdelloidea): a special family

Hydrobiologia, 1998
Here we focus on the fine morphology and present observations on the biology of representatives of family Philodinavidae. Philodinavus paradoxus and Henoceros falcatus were collected and cultured under laboratory conditions. Rotifers of both species are tiny, about 200 μm long, have protrudable trophi and creep with leech-like movements.
Claudia Ricci, Giulio Melone
openaire   +1 more source

Iranian Cunaxidae (Acari: Prostigmata: Bdelloidea): Part 2. Subfamily Cunaxinae

Journal of Natural History, 2011
The Iranian Cunaxinae dealt with in this paper comprise three known species of one genus. They are Cunaxa grobleri den Heyer, 1979a, Cunaxa capreolus (Berlese, 1889) and Cunaxa setirostris (Hermann, 1804). The first description of a male of Cunaxa capreolus is provided. The first two species are reported for the first time from Iran.
Edward A Ueckermann, Mohammad Khanjani
exaly   +4 more sources

New records of rare Bdelloidea and Monogononta Rotifers in gravel streams

Archiv Für Hydrobiologie, 1995
Rare rotifer species have been newly found in two different gravel streams (Oberer Seebach, Austria; and Afon Mynach, North Wales, Great Britain). The taxonomy and habitat distribution is revised, and confirmed for: Philodinavus paradoxus (MURRAY), Henoceros falcatus (MILNE), Microcodides chlaena (GOSSE), Proalinopsis caudatus (COLLINS), Dicranophorus ...
J M Schmid-Araya
exaly   +2 more sources

Functional morphology of the muscles in Philodina sp. (Rotifera: Bdelloidea)

Hydrobiologia, 2000
Whole-mounts of Philodina sp., a bdelloid rotifer, were stained with fluorescent-labeled phalloidin to visualize the musculature. Several different muscle types were identified including incomplete circular bands, coronal retractors and foot retractors.
Rick Hochberg, Marianne Klauser Litvaitis   +1 more
openaire   +1 more source

Rotifera from Australian inland waters. I. Bdelloidea (Rotifera : Digononta)

Marine and Freshwater Research, 1986
In this paper, the first of a series providing a systematic revision of all Rotifera now known from Australian inland waters, the common bdelloid rotifers are reviewed. The group is epiphytic or epibenthic in habit, but some species commonly occur in open water of billabongs, lakes and rivers, particularly in association with algal blooms.
Koste, W., Shiel, R. J.
openaire   +1 more source

Phylogenetic relationships of phylum Rotifera with emphasis on the families of Bdelloidea

Hydrobiologia, 1998
We investigated phylogenetic relationships of phylum Rotifera using cladistic analysis to uncover all most-parsimonious trees from a data set comprising 60 morphological characters of nine taxa: one Acanthocephala, six Rotifera, and two outgroups (Turbellaria, Gnathostomulida). Analysis of our matrix yielded a single most-parsimonious tree.
Giulio Melone, Claudia Ricci, Hendrik Segers, Robert L. Wallace   +3 more
openaire   +1 more source

Holocene fossil Habrotrocha angusticollis (Bdelloidea: Rotifera) in North America

Journal of Paleolimnology, 1988
Holocene fossil shells of the rotifer, Habrotrocha angusticollus (Bdelloidea: Rotifera) is reported from two peatlands in northern Ontario, Canada. H. angusticollis is a common component of the microfauna in Sphagnum peatlands and other wet mossy habitats. Our knowledge of the distribution and ecology of H.
B.G. Warner, R. Chengalath
exaly   +2 more sources