Results 181 to 190 of about 5,972 (213)
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Potential age of aquatic Oligochaeta
Hydrobiologia, 1984The maximum lifetime of species with exclusively sexual reproduction covers 5–15 years or even more in aquaria, although most specimens die consecutively earlier. The zooids of paratomic species live some weeks or months, their clones usually less than a year, rarely for some years.
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The Oligochaeta of Natal and Zululand
1916(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Published as part of Singh, Ankit Kumar & Khanal, Laxman, 2025, Annotated Checklist of the Earthworms (Annelida: Clitellata: Megadrili) of Nepal, pp.
Singh, Ankit Kumar, Khanal, Laxman
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Singh, Ankit Kumar, Khanal, Laxman
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On aquatic Oligochaeta Lumbricomorpha in Europe
Hydrobiologia, 1984Twelve species of aquatic earthworms have been found in European inland waters where they occupy different environments. Two species live exclusively in the sapropel, that is in the black fetid asphyctic mud, while four species can be found either in the sapropel or in the more oxygenated gyttja.
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Journal of Cell Science, 1934
ABSTRACT I Regard the opportunity to study the Oligochaeta collected by the members of the Oxford University Expedition to Sarawak as a bequest of my late colleague and friend Dr. John Stephenson, London. He would have been more competent to do this work, but fate has taken him prematurely from his work-table.
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ABSTRACT I Regard the opportunity to study the Oligochaeta collected by the members of the Oxford University Expedition to Sarawak as a bequest of my late colleague and friend Dr. John Stephenson, London. He would have been more competent to do this work, but fate has taken him prematurely from his work-table.
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Reproductive ecology of Naididae (Oligochaeta)
Hydrobiologia, 1981Asexual reproduction is employed by species of Naididae during favorable environmental conditions. In species characteristic of aquatic habitats subject to rapid fluctuations in water levels and temperatures most individuals in a population become sexually mature, and there is degeneration of the alimentary tract, a shortened breeding season, and ...
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Aquatic Oligochaeta of the World.
Systematic Zoology, 1972Ralph O. Brinkhurst +2 more
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A taxonometric investigation of the Alluroididae (Oligochaeta)
Journal of Zoology, 1968By computation of coefficients of similarity and construction of dendrograms by the highest single linkage, average linkage and complete linkage methods, the interrelationships of five members of the Alluroididae have been assessed together with their affinities with Syngenodrilus lamuensis Smith & Green (1919) and Drawida grandis (Bourne), 1894 ...
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The Zoogeography and Evolution of Tasmanian Oligochaeta
1974Two of the three orders into which the Oligochaeta (earthworms and their allies) are divisible (Brinkhurst & Jamieson, 1971) are represented in Tasmania (for classification see Table 8.1). The primitive order Lumbriculida is represented by a single species, the cosmopolitan and probably anthropochorous Lumbriculus variegatus, while the remainder of the
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A taxonomic revision of the Phreodrilidae (Oligochaeta)
Proceedings of the Zoological Society of London, 1965Seven of the 20 former species of the Phreodrilidae have been examined. Information derived from a study of this material has necessitated a re‐assessment of the interpretations of some of the anatomical features formerly employed in the separation of genera.
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