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Svenn Eske Kristensen - velfærdsarkitekten
No full textMonografi om arkitekten Svenn Eske Kristensen (1905-2000) og hans væsentligste værker op gennem det 20. århundrede.0Eske Kristensen var en af Danmarks ypperste og mest produktive arkitekter i efterkrigstiden. Med en nøgtern tilgang og et socialt engagement byggede han alt fra sociale boligbyggerier til store produktionsanlæg. I dag står Eske Kristensen som foregangsmand for byggeriets industrialisering og som en central figur i opbygningen af velfærdssamfundet. Bogen består af tre dele, der ser på Eske Kristensens værker ud fra henholdsvis et historisk og et arkitektonisk perspektiv efterfulgt af en værkfortegnelse. Bogen gennemillustreres af Eske Kristensens egne tegninger, historiske fotos og af fotograf Jens Lindhes fotografier. Bogens forfattere er professor og arkitekt maa, phd. Peter Thule Kristensen og historiker Kenn Schoo
Eohypsibius Kristensen 1982
No full textGenus: Eohypsibius Kristensen, 1982 Emended diagnosis. An extremely slender eohypsibiid with reduced legs and claws. Body of medium size. Very large, trumpet-shaped mouth with 14 lamellae. Ventral strengthening bar absent. Buccal tube only partly rigid, posterior part with annulations; however, the annulations of the buccal tube can only be seen after clearing in mounting medium. Crest-shaped dorsal and ventral apophyses of the buccal tube for insertion of the stylet retractor muscles, and two pairs of caudal hooks. Three ovoid Malpighian tubes each with a small stalk (collecting tube to the pylorus). Eggs laid free or laid in the old exuvium and always strongly sculptured. Type genus. Eohypsibius nadjae Kristensen, 1982 Composition. The type species, E. nadjae Kristensen, 1982 and Eohypsibius terrestris Ito, 1988.Published as part of Trygvadóttir, Birna Vár & Kristensen, Reinhardt Møbjerg, 2011, Eohypsibiidae (Eutardigrada, Tardigrada) from the Faroe Islands with the description of a new genus containing three new species, pp. 39-62 in Zootaxa 2886 on page 44, DOI: 10.5281/zenodo.27761
Wingstrandarctus Kristensen 1984
No full textGenus Wingstrandarctus Kristensen, 1984 Diagnosis (following Kristensen 1984): Alae present in all stages except for Halechiniscus - type two-clawed larvae, without procuticular hooks or expansions. Unci simple or with a calcar externum; uncus externus formed from a single piece; uncus internus with accessory spine. Hook-shaped pedunculae present on digitus externus. With two, three or no cephalic vesicles containing bacteria. Seminal receptacles and spermatozoa of the florarctid type. Segmental glands and unicellular epidermal glands present in all segments. Type species: Wingstrandarctus corallinus Kristensen, 1984. Additional species: W. intermedius (Renaud-Mornant, 1967) and W. crypticus Renaud-Mornant, 1989. Remarks. The genus Wingstrandarctus was described by Kristensen (1984) from sediment samples taken along the coastline of One Tree Island, Queensland, Australia at a depth of 2 meters. Apart from the new species of Wingstrandarctus several species of the closely related genus Florarctus were found in the fine coral sand. Since the description of W. corallinus several known but undescribed species of Wingstrandarctus have been found in so different areas as Tromsø, Norway and the Faroe Bank (North Atlantic Ocean), the Mediterranean Sea and in various tropical seas (R.M. Kristensen pers. obs.). Apart from the type species W. corallinus the genus consist of W. crypticus and W. intermedius. Both species were found in coralline sediment from New Caledonia in the south Pacific (Renaud-Mornant 1989). Wingstrandarctus intermedius was first described as Halechiniscus intermedius (see Renaud-Mornant 1967). Features like the lack of procuticular expansion supports found in the ala of most Florarctus allowed Kristensen (1984) to include it as a member of the genus Wingstrandarctus. In most species of Wingstrandarctus and Florarctus the cuticular expansions (alae) are so thin that they are easily overlooked in conventional light microscopy. Although there are only four lateral alae, there appear to be 6, because the first lateral ala is subdivided by a large fold or constriction just anterior to the second pair of legs. All alae are transparent with a fine punctuation. The punctuation represents the pillars inside two layers of outer epicuticle. The tiny pillars are oriented dorsoventrally. This position of pillars is very different from the lateral arrangement of the long pillars in the alae of Actinarctus or Raiarctus.Published as part of Jørgensen, Aslak, Boesgaard, Tom M., Møbjerg, Nadja & Kristensen, Reinhardt M., 2014, The tardigrade fauna of Australian marine caves: With descriptions of nine new species of Arthrotardigrada, pp. 401-443 in Zootaxa 3802 (4) on page 416, DOI: 10.11646/zootaxa.3802.4.1, http://zenodo.org/record/25249
Eohypsibiidae Bertolani & Kristensen 1987
No full textFamily: Eohypsibiidae Bertolani & Kristensen, 1987 Synonym: Amphibolidae Bertolani, 1981 Emended diagnosis. Claw structure (used to identify the family) is divided into three parts: base, secondary branch and main branch, which are clearly distinguished, sequentially inserted, and separated by septa. Claws of the same leg may be of similar size, but always exhibit different angles between the main and secondary branch. An acute angle (about 45 °) is formed by the external claw, and an almost right angle (80 °) by the internal claw, which can rotate on its base by 180 °. When the claws are of different size the external or posterior claws are larger – especially on the fourth pairs of legs. Type genus. Bertolanius Özdikmen, 2008 Composition. Bertolanius Özdikmen, 2008, Eohypsibius Kristensen, 1982 and Austeruseus, nov. gen.Published as part of Trygvadóttir, Birna Vár & Kristensen, Reinhardt Møbjerg, 2011, Eohypsibiidae (Eutardigrada, Tardigrada) from the Faroe Islands with the description of a new genus containing three new species, pp. 39-62 in Zootaxa 2886 on page 42, DOI: 10.5281/zenodo.27761
Echiniscoididae Kristensen & Hallas 1980
No full textFAMILY ECHINISCOIDIDAE KRISTENSEN & HALLAS, 1980 Diagnosis (amended): Unplated, marine Echiniscoidea. Adults with supernumerary claws (six to 13) on each leg. Secondary clava (papilla cephalica) domeshapedor almostflat (indistinct). Median cephalic cirrus always absent. Other cephalic appendages and leg appendages small (reduced). Cirri Aand E similar in both structure and length. The fourth leg sensory structure is papillar, as is the primary clava. Stylet sheath present; stylet supports always absent. Seminal receptacles lacking. External fertilization of the smooth eggs. Anal system consists of two lateral lobes and a terminal lobe. The anal opening is located in front of the terminal lobe. Type genus: Echiniscoides Plate, 1889. Discussion: The family Echiniscoididae consists of two subfamilies: Echiniscoidinae and Isoechiniscoidinae. The presence of supernumerary (six to 13) claws in adults is not seen in any other heterotardigrades. Seminal receptacles are never present in Echiniscoididae, but within Echiniscoidea seminal receptacles are found in Oreella Murray, 1910 (Binda & Kristensen, 1986; Dastych et al., 1998).Published as part of Møbjerg, Nadja, Jørgensen, Aslak & Kristensen, Reinhardt M., 2020, Ongoing revision of Echiniscoididae (Heterotardigrada: Echiniscoidea), with the description of a new interstitial species and genus with unique anal structures, pp. 663-680 in Zoological Journal of the Linnean Society 188 (3) on page 668, DOI: 10.1093/zoolinnean/zlz122, http://zenodo.org/record/462366
Eohypsibius nadjae Kristensen 1982
No full textEohypsibius nadjae Kristensen, 1982 (Figure 3) Locality. Streymoy: “Við Áir”, homothermic spring 12 ºC, altitude 50 m. Suðuroy: “Hvannhagi”, moss cushion, altitude 200 m. Specific diagnosis. Very elongated wormlike body. The 3 rd and 4 th pair of legs separated by nearly a third of the total body length. Internal and external claws of similar size. Smooth lunules and two cuticular bars on legs I–III. Body length, 175–260 µm (two specimens measured). Eyes absent. Buccal tube length 23 and 26 µm, respectively. The annulations of the posterior part (after the insertion of stylet supports) of the buccal tube cannot be seen in glycerol preparations. Three macroplacoids and a large microplacoid. The macroplacoids increasing in length, or the first and second of almost equal length. First c. 2–3 µm long, second 3 µm and the third 4 µm. Remarks. All Faroese specimens of E. nadjae fit the description of the type material from Disko Island, Greenland (Kristensen 1982). The new examples from this study included specimens from a moss sample not associated with homothermic springs, which supports the statement that E. nadjae is more terrestrial, i.e. a soil (Bertolani & Kristensen 1987) or interstitial tardigrade, than a true limnic tardigrade. No eggs of E. nadjae were clearly identified from the Faroese materials. However, one peculiar find was an exuvium-like object with 19 spheres, much like E. nadjae eggs, but of very variable size, and no trace of claws on the “exuvium”. It seemed curious that if these eggs were laid by a single female that they should vary so much in size. If they truly were E. nadjae eggs, this would be the first time that eggs were found in such large numbers within the exuvium. Worth mentioning is that these eggs were found in the same sample as adult individuals. Bertolani et al. (1996) report E. nadjae eggs laid free and two eggs laid in an exuvium identified as belonging to E. nadjae by the claws.Published as part of Trygvadóttir, Birna Vár & Kristensen, Reinhardt Møbjerg, 2011, Eohypsibiidae (Eutardigrada, Tardigrada) from the Faroe Islands with the description of a new genus containing three new species, pp. 39-62 in Zootaxa 2886 on page 44, DOI: 10.5281/zenodo.27761
Pauli Manuscript Collection: postcard from Kristensen, Fröhlich and Møller to Pauli
No full textPostcard sent by Kristensen, Fröhlich and Møller to W. Pauli
Neoechiniscoides MOBJERG, JORGENSEN & KRISTENSEN 2020, GEN. NOV.
No full textGENUS NEOECHINISCOIDES MØBJERG, JØRGENSEN & KRISTENSEN GEN. NOV. (FIGS 2–7) urn:lsid:zoobank.org:act:8FA86B31-39B9-4523- AFAF-E0DB7DE91562: Diagnosis: Primarily interstitial Echiniscoidinae, with seven to eight, occasionally six or nine, anisonych claws (generally more than six claws on each leg in adults). Epicuticular pillars absent. The dorsal cuticle is strongly sculptured. Cirri Aand Eare present and relatively short in both sexes. First and second leg sensory structures are small and dome shaped. The third leg sensory structure is a seta, and the fourth leg sensory structure is papillar, as is the primary clava. Secondary clavae (cephalic papilla) are more distinct and appear relatively larger in males than in females. Cephalic papillae may be subdivided into secondary and tertiary clavae. Seminal receptacles are lacking. The anal system appears large, with two wings associated with the lateral lobes. The distance between the anus and the gonopore is larger in females than in males. Asmall ventral cuticular plate is present in front of the female gonopore (not observed in N. pollocki). Etymology: From the Greek νέος, neos (new or young) combined with the generic name Echiniscoides. Type species: Neoechiniscoides aski; described below. Other members of the genus: Neoechiniscoides horningi (Miller & Kristensen, 1999) comb. nov. (basionym: Echinsicoides horningi Miller & Kristensen, 1999), sub-Antarctic (Macquarie Island), collected from the lichen Caloplaca sp. on rock in lower supralittoral zone. Neoechiniscoides pollocki (Hallas & Kristensen, 1982) comb. nov. (basionym: Echiniscoides pollocki Hallas & Kristensen, 1982), Rhode Island, USA, found interstitially, from tidal sediments. Differential diagnosis of the genus: Neoechiniscoides leg sense organs are of the Echiniscoides sigismundi type, i.e. p1 and p2 are dome shaped, p3 is a short setae, and p4 is similar to the primary clava, consisting of a small papilla with a spiny tip. Cirri (internal, external, Aand E) are shorter in Neoechiniscoides (range unadjusted for body size 3.0–8.7, 3.0–7.6, 10.0– 17.0 and 10.0–18.0 µm, respectively) compared with Isoechiniscoides (range unadjusted for body size 7.3– 12.0, 6.6–9.7, 14.5–21.0 and 24.0–33.0 µm, respectively), but generally longer than cirri of Echiniscoides. Specifically, cirri are longer in N. aski and N. pollocki than in Echiniscoides, but N. horningi falls within the range of Echiniscoides, which has an internal, external, Aand Ecirri length unadjusted for body length of 3.1– 4.8, 2.2–3.8, 8.3–13.0 and 7.5–12.0 µm, respectively, according to Kristensen & Hallas (1980). The anal system (Fig. 6) of Neoechiniscoides differs from that of Echiniscoides and Isoechiniscoides, specifically in the paired wings associated with the lateral lobes of the anus (wl in Figs 2, 4). Using light microscopy, the lateral anal lobes thus appear as a double structure. In scanning electron microscopy, these anal lobes appear as a double swollen structure, which can be observed when viewed dorsocaudally. Interestingly, during sampling we observed that the movements of the new interstitial Neoechiniscoides species were more similar to slowly moving eutardigrades than to other members of Echiniscoididae. Notably, specimens of the new species, N. aski, were highly responsive to freshwater shocking, which resulted in a fast gain of body water and associated swelling. Generic discussion: The molecular phylogenetic investigation of Echiniscoididae reveals several possibly undescribed taxa. Here, we establish the new genus Neoechiniscoides, with its members morphologically clearly distinguishable from the other taxa in Echiniscoididae. The wing structure of the lateral anal lobes is not present in other heterotardigrades. We acknowledge that a cautious approach should be taken to morphological structures with regard to their significance at a specific taxonomic level at this early stage of echiniscoidid revision. Hence, characteristics of the anal system might, in the future, have significance at a higher taxonomic level.Published as part of Møbjerg, Nadja, Jørgensen, Aslak & Kristensen, Reinhardt M., 2020, Ongoing revision of Echiniscoididae (Heterotardigrada: Echiniscoidea), with the description of a new interstitial species and genus with unique anal structures, pp. 663-680 in Zoological Journal of the Linnean Society 188 (3) on pages 668-669, DOI: 10.1093/zoolinnean/zlz122, http://zenodo.org/record/462366
Renaudarctidae Kristensen & Higgins 1984
No full text1.6 RENAUDARCTIDAE Kristensen & Higgins, 1984 (emended by Hansen et al. 2012) Arthrotardigrades with segmental dorsal and ventral plates, both claws and toes present. Four toes are accompanied by four accessory claw spines19 on each foot in the adults. Primary and secondary clavae, and a complete set of cephalic cirri present. 1.6.1 Renaudarctu s Kristensen & Higgins, 1984 (emended by Hansen et al. 2012) (Figs 5 A, 11C) Renaudarctidae with segmental dorsal plates, two dorsal intersegmental plates, four dorsal intersegmental ridges33, a dorsal plate on each leg, and thin ventral plates. Each body plate with a pair of lateral spines. Caudal 32. In the terminology of this key “dorsal bristle” = accessory point. 33. According to Hansen et al. (2012), these intersegmental ridges are prominent cuticular structures forming a ridge rather than a true plate, present between segmental and intersegmental plates. plate with two pairs of lateral spikes, one pair of caudal spikes, and lateral margins continuous with furca-like caudal extensions. Complete set of cephalic sense organs. Leg IV with small ovoid papilla; all other legs lack sensory structures. Cirrus E with cirrophore. Female and male with ovoid gonopore papillae adjacent to terminal anal system. Female with latero-ventral projections containing seminal receptacles. Type species: Renaudarctus psammocryptus Kristensen & Higgins, 1984 Remark: During the publication process of this paper a new genus and species, Nodarctus hallucis Fujimoto &Yamasaki, 2017, of Renaudarctidae have been described and, consequently, the diagnosis of the family has been emended. The genus Nodarctus can be easily distinguished from Renaudarctus in having leg IV with two digits, subdivided dorsal body plates without lateral processes, and a large single caudal spike (see Fujimoto & Yamasaki 2017).Published as part of Fontoura, Paulo, Bartels, Paul J., Jørgensen, Aslak, Kristensen, Reinhardt Møbjerg & Hansen, Jesper Guldberg, 2017, A dichotomous key to the genera of the Marine Heterotardigrades (Tardigrada), pp. 1-45 in Zootaxa 4294 (1) on pages 31-32, DOI: 10.11646/zootaxa.4294.1.1, http://zenodo.org/record/83154
Echiniscoidinae MOBJERG, KRISTENSEN & JORGENSEN 2016
No full textSUBFAMILY ECHINISCOIDINAE MØBJERG, KRISTENSEN & JØRGENSEN, 2016 Diagnosis (amended): Unplated, marine Echiniscoidea. Adults with supernumerary anisonych claws on each leg. Secondary clava (papilla cephalica) dome shaped or almost flat (indistinct). Other cephalic appendages and leg appendages small (reduced). Cirri Aand Esimilar in both structure and length. First leg sensory structure absent or small and dome shaped; a seta may be present on the second leg. The third leg sensory structure is a pointed papilla or seta. The fourth leg sensory structure is papillar, as is the primary clava. Epicuticular pillars are absent. Seminal receptacles are lacking. Fertilization of eggs is external. The anal system is relatively large and can be seen from the dorsal side as two large, nearly terminal lateral lobes. The terminal anal lobe is relatively small.Published as part of Møbjerg, Nadja, Jørgensen, Aslak & Kristensen, Reinhardt M., 2020, Ongoing revision of Echiniscoididae (Heterotardigrada: Echiniscoidea), with the description of a new interstitial species and genus with unique anal structures, pp. 663-680 in Zoological Journal of the Linnean Society 188 (3) on page 668, DOI: 10.1093/zoolinnean/zlz122, http://zenodo.org/record/462366
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