189,706 research outputs found
General -- 1963 -- Correspondence, OPV Miscellaneous -- letter, 1963-03-19
No full textLetter from Wetzel, David P. to Sabin, Albert B. dated 1963-03-19.Sabin Collection Fair Use Policy</a
Palambages Wetzel 1961
No full text<p> <b> <i>Palambages</i> Wetzel, 1961.</b> </p> <p> <i>Palambages</i> is a fossil taxon that refers to simple groupings of small spheroidal to ovoidal cells; individual cells are typically 7-10 µm in diameter (Fig. 3 D-G). In the studied material, <i>Palambages</i> occurs repeatedly in all samples, except for sample 09-243; it is most abundant in sample 09-262 (Fig. 2).</p> <p> The biological affinities of <i>Palambages</i> are uncertain, however, they are generally considered to be affiliated to the Chlorophyta (e.g., Słodkowska 2004; Wainman <i>et al.</i> 2019), although their primary classification as incertae sedis cannot be entirely excluded (Wetzel 1961).</p> <p> The oldest known fossil record of <i>Palambages</i> is described from the Oxfordian to Albian Pemba Formation in Mozambique (Smelror <i>et al.</i> 2008). Despite their repeated occurrence in Mesozoic basins worldwide (e.g. Wetzel 1961; Gocht & Wille 1972; Słodkowska 2004; Wainman <i>et al.</i> 2019; among others), this is the first report of <i>Palambages</i> from the Mesozoic basins of Iraq. Previous occurrences of these sporadic colonial cysts were likely disregarded or ignored.</p>Published as part of <i>Atfy, Haytham El, Abeed, Qusay & Uhl, Dieter, 2023, Non-pollen palynomorph and palynofacies assemblages from the Lower Cretaceous of Iraq: A glimpse into palaeobiology and palaeoenvironment, pp. 353-366 in Geodiversitas 45 (11)</i> on page 356, DOI: 10.5252/geodiversitas2023v45a11, <a href="http://zenodo.org/record/8095590">http://zenodo.org/record/8095590</a>
Cabassous chacoensis Wetzel 1980
No full text<i>Cabassous chacoensis</i> Wetzel, 1980 <p>Chacoan naked-tailed armadillo</p> <p> <i>Xenurus gymnurus</i>: Lahille, 1899:204. Not <i>Tatus gymnurus</i> Olfers 1818: 220.</p> <p> <i>Cabassous loricatus</i>: Yepes, 1935:441. Part; not <i>Cabassous loricatus</i> J. A. Wagner, 1855: 174-176.</p> <p> <i>Cabassous loricatus</i>: Cabrera, 1958:219. Part; not <i>Cabassous loricatus</i> J. A Wagner, 1855.</p> <p> <i>Cabassous loricatus</i>: Moeller, 1968:420. Part; not <i>Cabassous loricatus</i> J. A. Wagner, 1855.</p> <p> <i>Cabassous chacoensis</i> Wetzel, 1980: 335. Type locality: “ Paraguay, Depto. Presidente Hayes, 5-7 km W Estancia Juan de Zalazar ”.</p> <p> <b>Types</b>. The holotype (CM 67067) is an adult male collected on 28 July 1974, no collector listed, original numbers PWM 247 and UCM [originally cited as CONN] 16891. It consists of a stuffed skin, skull, and a carcass preserved in alcohol. Wetzel (1980) listed two paratypes: an adult (CONN 16982) female [erroneously cited as male in the original publication] collected in the type locality, catalog number PWM 246; and a male (USNM 531004) collected in Filadelfia, Boquerón, Paraguay.</p> <p> <b>Type locality</b>. The holotype was collected at “ 5-7km W of Estancia Juan de Zalazar, Departament Presidente Hayes, Paraguay ” (Wetzel 1980), in an area of thorn forest and mixed grasses in the dry Chaco.</p> <p> <b>Diagnosis</b>. This species can be easily differentiated from other congeneric taxa by its much smaller ears (Figure 6), limbs and sides of the body hairy, and its overall smaller size (Table 2). The scutes on the cephalic shield (45-52) exhibit a concentric organization with a large and central scute surrounded by smaller polygonal scutes (Figure 6). The cheek region is usually naked or with very small scutes. The carapace is brownish with 11-13 movable bands and hairy on its edges. The tail is overall naked with only sparse scutes and hairs. <i>C. chacoensis</i> exhibits wide and marked curved zygomatic arcs, its teeth are anteroposteriorly constricted, making them wider than long. The body of the mandible is well curved and the ramus shows a more vertical profile (Figure 4d).</p> <p> <b>Geographic distribution</b>. <i>Cabassous chacoensis</i> occurs from western Paraguay to central Argentina, comprising mainly the Gran Chaco region. However, given that the species is rarely recorded (Chebez 1994), its range may be larger than it is currently known. For example, some isolated records in Argentina also include the Yungas (Cirignoli <i>et al.</i> 2019) and montane grassland High Monte in La Rioja (Monguillot & Miatello 2010).</p> <p> Wetzel (1980) listed Brazil (“ Mato Grosso ”) as part of the distribution of <i>Cabassous chacoensis</i>, but this was based on a specimen obtained from the Buenos Aires Zoo in 1904. Since then, no additional record has been reported, leading several authors to not include it as part of the Brazilian fauna (Wetzel <i>et al.</i> 2008, Hayssen 2014b, Brandão <i>et al.</i> 2019; Abreu <i>et al</i>. 2020; Quintela <i>et al.</i> 2020). Nevertheless, <i>C. chacoensis</i> has been registered in Paraguay about 220 km from the Brazilian border. It is therefore an open question whether the species went locally extinct, has gone unnoticed for over a century, or never occurred in Brazil; in this latter case the Paraguay River might represent the barrier between the two countries. On the other hand, the absence of <i>C. chacoensis</i> in Bolivia might reflect the lack of studies on this genus given that the dry Chaco extends northward to the Bolivian east portion (Figure 8). Among all specimens of <i>Cabassous</i> examined in this study, only three were collected in Bolivia.</p> <p> <b>Remarks</b>. Hutterer & Peters (2010) listed an adult female (ZFMK 60.317, field number 448) housed at the Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany as a paratype of <i>C. chacoensis</i>. This specimen is represented by a skin and skull and was collected in Filadelfia, Boqueron, Paraguay by J. Unger on 10 December 1958. However, although Wetzel (1980) listed this individual among the material examined, he did not include it as a paratype.</p>Published as part of <i>Feijó, Anderson & Anacleto, Teresa Cristina, 2021, Taxonomic revision of the genus Cabassous McMurtrie, 1831 (Cingulata Chlamyphoridae), with revalidation of Cabassous squamicaudis (Lund, 1845), pp. 47-78 in Zootaxa 4974 (1)</i> on pages 60-61, DOI: 10.11646/zootaxa.4974.1.2, <a href="http://zenodo.org/record/4773355">http://zenodo.org/record/4773355</a>
<i>Ut et ego essem filius Dei :</i> Maître Eckhart et la naissance éternelle de Dieu dans le fond de l'âme
No full textArticle paru dans un numéro spécial contenant les contributions de Francesca Barresi, Giuseppe Barzaghi, Alessandro Vetuli, René Wetzel et Laurence Wuidar (éd.)</p
Bicudoa amazonica C. E. Wetzel, Lange-Bertalot & Ector 2012, sp. nov.
No full textBicudoa amazonica C.E. Wetzel, Lange-Bertalot & Ector sp. nov. Diagnosis microscopio photonico: Frustula aspectu cinguli fere rectangulata. Valvae late ellipticae, lineari-ellipticae ad lineares apicibus cuneatis denique curte rostratis. Valvae dorsiventrales quia ad axem apicalem leviter ad levissime asymmetricae margine una semper convexa altera modice concava in mediis partibus quoad specimina media et maiora. Longitudo 40–120 μ m, latitudo 17–20 μ m. Area axialis (id est sternum) angustissima plerumque excentrica sita. Areae angustae marginales prope limbos adsunt. Alterae areae absunt. Systema raphidea nulla. Striae transapicales, sicut in Eunotia, subparallelae saepe plusminusve irregulariter sitae inter se, sub apices transientes distincte radiantes, 10–12 in 10 μ m, sub apices modice densius sitae usque ad 16 in 10 μ m. Interstriae comparate latiores. Areolae vix aspectabiles quia circiter 75–80 in 10 μ m. Structura chromatophorum incognita. Diagnosis microscopio electronico: Aspectus externus: Frontes valvarum fere planae cum foraminibus areolarum uniseriatis omnino comparate minimis circularibus (hic apertis) diameter circiter 0.1 μ m. Series foraminum curte interruptae sterno angustissimo et latius interruptae ad iuncturam inter frontem et limbum valvae ubi series apicalis spinarum verrucosa num est tum series continuantes in limbis. Campi porellorum absunt. Aspectus internus: Superficies interna perforata areolis circularibus crateriformibus apertis. Depressiones transapicales id est alveoli vacant. Systema raphidea ut in familia Eunotiaceae sive ut in familia Bacillariaceae nulla. Etiam rimoportulae et porelli apicales ut in familia Fragilariaceae et alteris familiis diatomearum araphidearum vacant. Cingulum frustulorum: cingulum utraeque valvae 3–10 copulis apertis vel clausis constans. Omnes copulae preditae multis areolis uniseriatis transapicaliter (vel quodammodo pervalvariter ita ut in Eunotia nec in familia Fragilariaceae vel alteris familiis araphideis). Light microscopy observations: —Valves isopolar, moderately dorsiventral, broadly linear with slightly constricted center in large specimens; cuneate to sub-rostrate ends (Figs 7–13). Dorsal margins consistently convex. Ventral margins variable, either less concave in small valves or nearly straight to concave in mediumsized and large specimens. Length 40–120 µm, width 17–20 µm. Axial area or sternum extremely narrow, sometimes displaced toward ventral side of valve (Fig. 8) or centrally positioned (Fig. 9). Narrow lateral area located close to the valve margins, visible in both valves and girdle view. Raphe system, helictoglossae and rimoportulae lacking. Transapical striae subparallel often irregularly spaced, 10–12 in 10 µm, becoming radiate toward the ends where they are more densely spaced (up to 16 in 10 µm) (Fig. 12). Costae comparatively much wider. Areolae observable in LM. Plastids unknown. Frustules rectangular in girdle view (Fig. 14). Cells forming band-like colonies (no more than 4 joined cells observed). Scanning electron microscope observations: —In external view, valve face slightly curved with a shallow longitudinal depression near the valve center (Fig. 21). Striae uniseriate situated both on valve face and mantle, interrupted by lateral area developing on the junction between valve face and mantle (Figs 22–25). Areolae small, circular with foramina ca. 0.1 µm in diameter (Fig. 22). Each foramen lies in a shallow depression visible in oblique view (Figs 23–25). Valve face showing wart-like growths and siliceous thickenings, which allow the connection between contiguous valves (Fig. 25). Sternum narrow, sometimes displaced toward the ventral side of the valve. Apical pore fields absent. The cingulum is composed of 3–10 open copulae that are perforated by pervalvar multiporoid striae arranged in discernible rows (Fig. 27). Girdle band areolae density 75–80 in 10 µm. A small linear depression is present near the apex at the junction between valve face and mantle. In both external and internal view, rimoportulae are always absent. Internally, but never in external view, one raphe slit vestige is present in some specimens (Figs 28, 30–31), but in most cases it is completely lacking (Figs 28 and 32). Type: — BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 0° 30' 43'' S, 64°49'45''W, 11 March 2005; Wetzel C. E. & Ector L., sample n° 265; Holotype here designated SP –400.480, depicted here in Fig. 8, deposited at the ' Herbário Científico do Estado Maria Eneyda P. Kauffmann Fidalgo'(SP), São Paulo, Brazil. Sample from feces of an adult specimen of the freshwater turtle Podocnemis erythrocephala Spix (1824). Isotypes: slide BR –4167 (Meise) and slide BM –101392 (London). Etymology: —The new genus is dedicated to Prof. Dr. Carlos Eduardo de Mattos Bicudo at the 'Instituto de Botânica de São Paulo' for his pioneering work on freshwater microalgae in Brazil and for the relevant role on the formation of Brazilian phycologists; ' amazonica' refers to the type locality. Additional material examined: — BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 03 March 2005; Wetzel C . E. & Ector L., phytoplankton, sample n° 82; SP–400.297; BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 04 March 2005; Wetzel C . E. & Ector L., periphytic biofilm growing on submerged Arecaceae palm tree, sample n° 104; SP–400.319; BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 04 March 2005; Wetzel C . E. & Ector L., phytoplankton, sample n° 106; SP–400.321; BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 04 March 2005; Wetzel C . E. & Ector L., periphytic biofilm growing on a submerged trunk, sample n° 116; SP–400.331; BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 04 March 2005; Wetzel C . E. & Ector L., phytoplankton, sample n° 117; SP–400.332; BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 11 March 2005; Wetzel C . E. & Ector L., phytoplankton, sample n° 260; SP–400.475; BRAZIL. Amazonas: Rio Negro basin, Alto Rio Negro, 11 March 2005; Wetzel C . E. & Ector L., phytoplankton, sample n° 261; SP–400.476.Published as part of Wetzel, Carlos E., Lange-Bertalot, Horst, Morales, Eduardo A., Bicudo, Denise De C., Hoffmann, Lucien & Ector, Luc, 2012, Bicudoa amazonica gen. nov. et sp. nov. (Bacillariophyta) - a new freshwater diatom from the Amazon basin with a complete raphe loss in the Eunotioid lineage, pp. 1-18 in Phytotaxa 75 (1) on pages 7-9, DOI: 10.11646/phytotaxa.75.1.1, http://zenodo.org/record/506663
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Adlafia kociolekii C. Radhakrishnan, Sudipta K. Das, C. E. Wetzel & B. Karthick 2023, sp. nov.
No full text<i>Adlafia kociolekii</i> C.Radhakrishnan, Sudipta K.Das, C.E.Wetzel & B.Karthick <i>sp. nov.</i> (Figs 2–43) <p> <b>Description:</b> —LM (Figs 2–28): Valves lanceolate to linear-lanceolate, elliptical, with acute apices: valve length 16– 53.5 μm, width 6–10.5 μm (n=25). Raphe slightly lateral and straight, inflated proximal ends, very slightly deflected to primary side, distal ends deflected in opposite direction. Striae uniseriate, 26–30 in 10 μm, composed of round areolae, radiate at centre, parallel to convergent near apices. Valves with narrow axial area [sternum], central area broad and elliptical in large valves, narrow, straight in smaller ones. Voigt discontinuity is clearly discernible towards both poles.</p> <p>SEM (Figs 29–43): Externally, the raphe system is narrow and not prominent (Figs 29–30). Proximal raphe ends slightly dilated and teardrop-like (Figs 34–35). Hook-like distal ends bend in the opposite direction (Figs 30–33). Uniseriate striae, areolae mostly covered with hymenes, clearly visible only when thoroughly oxidized (Figs 29–31). The shape of the areolae is round to oval near mantle and oval to elongate near axial area. Areolae more regularly arranged on primary side; less regular on secondary side (Fig. 29). Areolae more elongate near the central area (Fig. 34).</p> <p>Internally, raphe is thin and almost straight and the sternum more elevated (Figs 36–37). Distal raphe ends slightly bent, with long raised helictoglossae (Figs 38, 40–41). Proximal raphe ends are deflected in the opposite direction to the distal ends (Fig. 36). Striae form round to elliptical areolae opening on entire valve (Figs. 42–43). Mantle is deep, a rows of areolae is present near to distal ends and terminating with helictoglossae (Fig. 40).</p> <p> <b>Type locality:</b> Panchgotey, Kyongnosla Alpine Sanctuary, Sikkim, India, 27.3197° N, 88.5455° E, 3888 m a.s.l.; attached to moss (epibryophytic) patches on rocks (Agharkar Herbarium of Maharashtra Association (AHMA) #2421, holotype, an example illustrated in Figure 2; Central National Herbarium (CAL), Isotype no. CAL /ALG.60).</p> <p> <b>Etymology:</b> The species name is in the honour of eminent diatomologist Dr John Patrick Kociolek from CU Museum of Natural History, the University of Colorado at Boulder, USA.</p> <p> <b>Ecology and distribution:</b> The type material was aerial in occurrence. The species was also found epilithic in freshwater and in subaerophytic habitats in northeast India. A small population of the taxon was found epipsammic habitat of a stream near Khamrang, Mizoram. Rare occurrences of the taxa were also noted on wet walls in Angori (Meghalaya) and Keitum (Mizoram). The details of the distributions of the taxon in various parts of northeast India, along with the other diatoms growing in consortium, are presented in Table 1.</p>Published as part of <i>Se. Wetzel & Karthick, Balasubramanian, 2023, Adlafia kociolekii sp. nov. (Bacillariophyceae): a new naviculoid diatom from the Eastern Himalayas, India, pp. 62-72 in Phytotaxa 595 (1)</i> on pages 64-66, DOI: 10.11646/phytotaxa.595.1.4, <a href="http://zenodo.org/record/7889438">http://zenodo.org/record/7889438</a>
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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An Anthropometrical Study in the Nutrition of Children, Using the Wetzel Grid
No full textIn this study, an appraisal of the nutritional status of eighty-eight school children has been made, using the Wetzel Index with the Baldwin-Wood Index and the Pryor Index for the determinations
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