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Registros recuperados: 53 | |
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Breure, A.S.H.. |
In this publication a revision is given of the genera of the subfamily Bulimulinae (Gastropoda, Pulmonata, Bulimulidae). The morphological variation of the shell, radula, pallial organs and genitalia is analized and 21 character transition series are recognized. In the systematical part the following data are presented for each genus : description of shell and anatomy, distribution, ecology, bibliography and a list of taxa. The number of (sub) genera is reduced from 80 to 43 ( + two nomina inquirenda). A new synonymy is : Paracochlea Hylton Scott, 1967 = Eudioptus Albers, 1860. The following new species names are introduced : Bostryx sophieae, Drymaeus (Drymaeus) marcapatensis, Drymaeus (Drymaeus) sophieae, Drymaeus (Mesembrinus) pseudobesus. Berendtia... |
Tipo: Article / Letter to the editor |
Palavras-chave: Gastropoda; Pulmonata; Bulimulidae; Revision; Description; Distribution; Ecology; 42.73. |
Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/323943 |
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Hammen, L. van der. |
The present paper constitutes an introduction to taxonomic methodology. After an analysis of taxonomic practice, and a brief survey of kinds of attributes, the paper deals with observation, description, comparison, arrangement and classification, hypothesis construction, deduction, model, experiment, abstraction, and synthesis. The methodological aspects of the species-concept and of biological classification are dealt with in two final sections. |
Tipo: Article / Letter to the editor |
Palavras-chave: Abstraction; Classification; Comparison; Deduction; Description; Experiment; Hypothesis; Methodology; Model; Observation; Species-concept; Synthesis; Systematics; Taxonomy; 42.03; 42.70. |
Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/318283 |
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Choy, S.C.. |
Fourteen species of shrimps belonging to four genera of the family Atyidae are reported from the Fiji Islands. Three genera are represented by only one species each: Antecaridina lauensis (Edmondson, 1935), Atyoida pilipes (Newport, 1847) and Atyopsis spinipes (Newport, 1847) while the fourth, Caridina is represented by eleven species (including one new, Caridina devaneyi spec. nov. which is described and illustrated). Keys are provided to separate the genera and species. Two species, Caridina japonica De Man, 1892 and C. longirostris H. Milne Edwards, 1837 are recorded from Fiji for the first time. C. devaneyi spec, nov., C. fijiana Choy, 1983 and C. nudirostris Choy, 1984 are so far known only from Fiji and may be endemic to the island of Viti Levu. All... |
Tipo: Article / Letter to the editor |
Palavras-chave: Shrimps; Decapod Crustacea; Caridea; Atyidae; Antecaridina; Atyoida; Atyopsis; Caridina; Review; Distribution; New records; Description; New species; Fiji; 42.74. |
Ano: 1991 |
URL: http://www.repository.naturalis.nl/record/319000 |
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MARTINS,M. L.; SOUZA,V. N. de; MORAES,J. R. E de; MORAES,F. R de. |
Piauçus (Leporinus macrocephalus), were raised in 300 m² ponds (density of 10 fish/m²) presenting asphyxia signals and daily mortality of 27 fishes. Specimens with 8-cm total body length, were collected for necropsy. Mucus of body surface and pieces of organs were collected and examined microscopically, in wet mounts, stained or in histological sections. The smears examination showed the presence of several spores in the secondary lamellae of the gill filaments, identified as Henneguya leporinicola n.sp (Myxozoa: Myxobolidae). Histopatological study showed epithelial hyperplasia and fulfilling of the spaces between the secondary lamellae, congestion and teleangiectasia sinusoidal. It was also observed hyperplasia of the goblet cells and several cysts of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Myxozoa; Henneguya leporinicola; Leporinus macrocephalus; Histopathology; Description. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000300018 |
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Registros recuperados: 53 | |
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