Search results for "type"

A new species of Crepidostomum (Allocreadiidae: Digenea) from northeastern Finland, with comments on its possible origin

1988

Crepidostomum wikgreni n. sp. is described from the gall-bladder and intestine of the whitefish Coregonus acronius in Lake Yli-Kitka in NE Finland. It is morphologically similar to Crepidostomum farionis, with which it occurs sympatrically and sometimes concurrently; but it differs in that the eggs are much larger, i.e. 96±6.5 μm mean-length, as opposed to 71±4.7 μm mean-length for C. farionis in the same host and locality. It is suggested that the new species has arisen from C. farionis after deglaciation and since c. 8,400 BP, at which time the waters of the Lake Kitka System were isolated from those in the rest of Finland and flowed eastwards into the White Sea Basin. The isolation of th…

REINSTATEMENT OF THE DINOFLAGELLATE GENUS Tripos TO REPLACE Neoceratium, MARINE SPECIES OF Ceratium (DINOPHYCEAE, ALVEOLATA)

2013

Morphological and molecular data support the split at the genus level of the marine and freshwater species of the dinoflagellate Ceratium (Gonyaulacales, Dinophyceae). A new genus name Neoceratium F. Gomez, D. Moreira & P. Lopez-Garcia was proposed for the marine species. However, it is considered illegitimate (type species is type of Biceratium Vanhoffen), and the nomenclatural priority is here given for the genus Tripos Bory (type species Tripos muelleri ) which replaces Neoceratium . New combinations are proposed for the existing names of species and infraspecific taxa. Reinstalacion del genero de dinoflagelados Tripos para reemplazar a Neoceratium , especies marinas de Ceratium (Dinophy…

On Harvestmen from the Soutpansberg, South Africa, with Description of a New Species ofMonomontia(Arachnida: Opiliones)

2008

The harvestman fauna of the Western Soutpansberg was investigated during two collecting trips. Comments are made on the variability, ecology and remarkable morphological features of the collected material. Characters are displayed and differences to type series are highlighted. Monomontia neglecta sp. n. is described from material housed at the Natal Museum. Metabiantes leighi Pocock, 1902 is recorded for the first time for the Soutpansberg area. A species list is provided, listing all known records and the state of endemism. The relative species richness of the eastern Soutpansberg is discussed in comparison with the western area.

Vier Dekaden Weberknechtforschung mit dem 64. Band der ‚Tierwelt Deutschlands‘ – Rückblick, aktueller Stand und Ausblick

2021

A short history of the Opiliones volume in ‘Die Tierwelt Deutschlands’ published by Martens (1978) is presented. The area under consideration comprises Central Europe expanded by large parts of Scandinavia, the British Isles, non-Mediterranean France, Benelux, the complete Alps and in the south-east those parts of Romania and Croatia whose fauna was sufficiently well known. Additions and changes which appeared since 1978 are highlighted: new species discovered in this area, taxonomic changes, important distributional records, as well as changes of faunal composition due to human-mediated influences and climate change are addressed. Perspectives for further research concern faunal inventory …

Cryptic microgeographic variation in responses of larval Atlantic cod to warmer temperatures

2021

AbstractAlthough temperature is known to drive species dynamics and distributions, our understanding of the extent to which thermal plasticity varies within species is poor. Differences in plasticity can arise through local adaptation to heterogeneous environments, hybridization, and the release of cryptic genetic variation in novel environments. Here, wild Atlantic cod (Gadus morhua) from contrasting environments inside and outside of a fjord system in southern Norway spawned freely in a semi-natural laboratory environment, generating pure crosses and reciprocal hybrids. A common-garden rearing experiment of the larvae at 6°C, 9.5°C, and 13°C revealed cryptic genetic variation in thermal r…

2001

Duration from sowing to flowering is the most important trait influencing adaptation in pigeon pea (Cajanus cajan), but the inheritance of this trait has not been elucidated clearly. Crosses were made between two early (60 to 70d) and one late (160 to 170d) flowering pigeonpea genotype and F1, F2 and BC1 populations produced. These populations, comprising 60 to 100 parents, 30 F1, 400F2 and 40 to 50 BC1 plants, were grown under natural (mean13.4 hd-1) and artificially extended (to 15 hd-1) daylength and duration from sowing to first flowering recorded. Genetic analysis of the segregation ratios, supported by Chi-square tests, indicated that the duration from sowing to flowering in each of t…

SAT0373 Role of Inkt Cells in Patients with Primary Sjogren Syndrome

2015

Background iNKT cells represent a T cell subset at the bridge between innate and adaptive immunity, playing a role in regulating auto-antibody-producing B cells before their entry into germinal centers. Therefore the absence and/or reduction of iNKT cells seem to increase auto-reactive B cell activation. Primary Sjogren9s syndrome (pSS) is a systemic autoimmune disease in which lymphocyte infiltration and organization in lymphoid structures of inflamed salivary glands occur. Objectives The aim of this study was to investigate the frequency of iNKT in the salivary glands and peripheral blood of patients with pSS and their function by using CD1d/aGalactosylceramide (aGalaCer) tetramers. Metho…

Description deHymenolepis cerberensisn. sp. (Cestoda : Hymenolepididae) et premières considérations générales sur la faune de Cestodes parasites de l…

1986

Description et differenciation de l’adulte de Hymenolepis cerberensis n. sp. (Cestoda : Hymenolepididae), parasite intestinal de la Musaraigne etrusque, Suncus etruscus (Savi, 1822) (Insectivora : Soricidae : Crocidurinae) capturee sur les communes de Banyuls-sur-Mer et Cerbere (Pyrenees-Orientales, France). La nouvelle espece est caracterisee par la taille des individus gravides et la presence de 18-21 crochets rostraux de 18,5-20 µm de longueur et de filaments autour de l’embryophore. La composition generale de la faune de Cyclophyllidea parasites de S. etruscus est analysee. Il s’agit de trois Hymenolepis peu specialises a scolex du meme type et d’un Pseudhymenolepis , avec absence d’esp…

Sella, A NEW NAME FOR THE GENUS Linaresia EL KADIRI, 1992 (NASSELLARIA, RADIOLARIA) PREOCCUPIED BY COPEPOD CRUSTACEANS (LAMIPPIDAE, MAXILLOPODA)

2021

The aim of this short note is to create a new name of this genus since the original name Linaresia proved to pre-exist in the paleontological literature ( Linaresia de Zulueta, 1908, Family Lamippidae, Copepod crustaceans, and Linaresia Gonzalez-Donoso, 1968, Family Gavelinellidae, Agglutinated Foraminifera). The new name created for the above mentioned radiolarians is: Sella . This name derives from an arbitrary combination of letters (International Code of Zoological Nomenclature). The type species of Sella is S. beniderkoulensis by original designation (El Kadiri, 1992).

Evolution and Immune Function of Fish Lectins

2016

Abstract Lectins are sugar-binding proteins widely distributed among animals, plants, and microbial taxon, involved in diverse biological processes. In both invertebrates and vertebrates, they play key roles in nonself recognition and immune responses, such as nonself recognition, inflammatory processes, and immunomodulation. In fish, many lectin families have been identified, and their tissue-specific expression and localization of the various lectin repertoires and their ligands are consistent with their distinct biological roles in innate and adaptive immunity. Here, we discuss the involvement of F-type lectins, rhamnose-binding lectins, galectins, and C-type lectins in pathogen recognit…