1,720,993 research outputs found
Malmgreniella lilianae Pettibone 1993
No full textMalmgreniella lilianae Pettibone, 1993 (®gure 1A±J) Malmgreniella lilianae Pettibone, 1993: 59, ®gure 38.Published as part of Barnich, R. & Fiege, D., 2001, Mediterranean species of Malmgreniella Hartman, 1967 Polychaeta: Polynoidae: Polynoinae), including the description of a species, pp. 1119-1142 in Journal of Natural History 35 on page 112
Diversity of the genus Terebellides (Polychaeta: Trichobranchidae) in the Adriatic Sea with the description of a new species
No full textBased on specimens collected during the sampling campaigns in the Northern Adriatic from 2003–2010, the diversity of
genus Terebellides (Polychaeta; Trichobranchidae) was studied and three species are reported for the Northern Adriatic
Sea: Terebellides gracilis Malm, 1874, Terebellides mediterranea spec. nov., and Terebellides stroemii Sars, 1835. Terebellides
stroemii was the only species previously reported from the area. Terebellides gracilis is reported for the first time
for the Mediterranean Sea and its geographical distribution is extended south. Terebellides mediterranea spec. nov., is
characterised by the presence of long notopodia and notochaetae in the first thoracic chaetiger. These three species are
compared to other Terebellides species described or reported from North Atlantic waters, and a key to Terebellides species
of the North East Atlantic and Mediterranean is provided
Neolagisca Barnich & Fiege 2000, gen. nov.
No full text<i>Neolagisca</i> gen. nov. <p> <i>Type species</i>: <i>Lagisca drachi</i> Reyss, 1961.</p> <p> <i>Diagnosis.</i> Fifteen pairs of elytra, more or less covering body. Prostomium with distinct cephalic peaks; median antenna in anterior notch, lateral antennae inserted ventrally. Parapodia biramous; neuropodia with digitiform supra-acicular process; tips of noto- and neuroacicula penetrating epidermis. Notochaetae stout, with distinct rows of spines and of two kinds: stout with blunt tips and slender with sharp,</p>Published as part of <i>Barnich, R. & Fiege, D., 2000, Revision of the Mediterranean species of Harmothoe Kinberg, 1856 Lagisca Malmgren, 1865 (Polychaeta: Polynoidae: Polynoinae) descriptions of a new genus and a new species, pp. 1889-1938 in Journal of Natural History 34</i> on page 193
Still digging: Advances and perspectives in the study of the diversity of several sedentarian annelid families
Full text linkSedentarian annelids are a diverse and heterogeneous group of marine worms representing more than 8600 species gathered in ca. 43 families. The attention brought to these organisms is unevenly distributed among these families, and the knowledge about them sometimes scarce. We review here the current knowledge about the families Acrocirridae, Cirratulidae (including Ctenodrilidae), Cossuridae, Longosomatidae, Paraonidae, and Sternaspidae in terms of biodiversity as well as the evolution of the taxonomy and systematics of each group. We present the challenges faced when studying these organisms and compare methodologies across groups and perspectives in future research
Robertianella McIntosh 1885
No full textGenus <i>Robertianella</i> McIntosh, 1885 <p> <i>Type species</i>: <i>Robertianella synophthalm a</i> McIntosh, 1885.</p> <p> <i>Diagnosis.</i> Fifteen pairs of elytra, more or less covering body. Prostomium with distinct cephalic peaks; median antenna in anterior notch, lateral antennae inserted ventrally. Parapodia biramous; neuropodia without supra-acicular process; tips of notoacicula penetrating epidermis, those of neuroacicula never penetrating. Notochaetae stout, with very faint rows of spines and blunt tips; neurochaetae with very faint rows of spines only distally and with bill-shaped tips.</p> <p> <i>Description</i>. Body dorsoventrally fl attened, short, with up to 43 segments; body more or less covered by elytra or short tail uncovered (in large specimens). Fifteen pairs of elytra on segments 2, 4, 5, 7, on alternate segments to 23, 26, 29 and 32; rst pair rounded, the following oval to kidney-shaped; surface with few microtubercles; margin without papillae (fi gure 19B, C). Dorsal cirri with cylindrical cirrophores and long styles on segments lacking elytra (fi gure 19D); nodular dorsal tubercle on cirrigerous segments (fi gure 19A). Ventral cirri short (except on second segment), consisting of cirrophore and style on all segments (fi gure 19E). Nephridial papillae usually present from chaetiger 5 to the end of the body. Pygidium with one pair of anal cirri.</p> <p>Prostomium bilobed, with distinct cephalic peaks, three antennae: ceratophore</p>Published as part of <i>Barnich, R. & Fiege, D., 2000, Revision of the Mediterranean species of Harmothoe Kinberg, 1856 Lagisca Malmgren, 1865 (Polychaeta: Polynoidae: Polynoinae) descriptions of a new genus and a new species, pp. 1889-1938 in Journal of Natural History 34</i> on page 192
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Harmothoe pagenstecheri Michaelsen 1896
No full text<i>Harmothoe pagenstecheri</i> Michaelsen, 1896 <p>(fi gure 10A -D)</p> <p> <i>Harmothoe impar</i> var. <i>pagenstecheri</i> Michaelsen, 1896: 7, pl. 1: fi gure 1.</p> <p> <i>Harmothoe impar</i>: Fauvel, 1923: 59, fi gure 21a -f [part]; Bellan, 1964a: 24 [part]; Campoy, 1982: 63 [part]; Tebble and Chambers, 1982: 40, fi gures 7b, 12b -c, 38 [part]; Hartmann-SchroÈder, 1996: 48, fi gure 13 [part].</p> <p> <i>Harmothoe pagenstecheri</i>: Chambers and Muir, 1997: 108, fi gure 28.</p> <p> <i>Type material</i>. <i>Harmotho e pagenstecher i</i>, HOLOTYPE: Helgoland, leg. Pagenstecher, ZMH V.1081. <i>Additional material</i>. 1 spm., October 1996, Banyuls, leg. S. Lenz, SMF 9210 /1. spm., <i>Gyf</i> St. 269, 15 January 1953, herbier de <i>Posidonia</i>, W de Riou, Coll. PeÂreÁs. spm. (af), St. 383, 18 December 1953, Marseille, Coll. PeÂreÁs indeÂt. <i>Diagnosis</i>. Anterior pair of eyes dorsolaterally on widest part of prostomium. Elytra: margin with fringing papillae; surface covered by conical microtubercles and few scattered papillae, with a row of large club-shaped macrotubercles, with papillae</p> <p> IG. 10. <i>Harmothoe pagenstecheri</i> (October 1996, Banyuls, SMF 9210 /1). (A) Anterior end; right palp missing, styles of left tentacular cirri not fi gured; dorsal view; (B) right fi fth elytron from chaetiger 9; (C) detail of posterior margin of same; (D) style of dorsal cirrus (scales 5 1 mm for A, B, D; 250 <i>M</i> m for C).</p> <p>1910, near posterior margin. Dorsal and ventral tentacular cirri and dorsal cirri</p>Published as part of <i>Barnich, R. & Fiege, D., 2000, Revision of the Mediterranean species of Harmothoe Kinberg, 1856 Lagisca Malmgren, 1865 (Polychaeta: Polynoidae: Polynoinae) descriptions of a new genus and a new species, pp. 1889-1938 in Journal of Natural History 34</i> on pages 1909-191
- …
