124,862 research outputs found
Micromaldane Mesnil 1897
No full textGenus Micromaldane Mesnil, 1897 Micromaldane ornitochaeta Mesnil, 1897 DISTRIBUTION: NA, SA. LITERATURE RECORDS: Zavodnik 1967 b; Požar-Domac 1994; Gherardi et al. 2002; Casellato et al. 2007; Casellato & Stefanon 2008.Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 54, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/24466
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
Parerigone malaisei Mesnil
No full text<i>Parerigone malaisei</i> Mesnil <p> <i>Parerigone malaisei</i> Mesnil, 1957: 61. Holotype male (FMNHH). Type locality: Myanmar, Kambaiti.— Crosskey, 1976: 203 (Oriental catalogue).— Shima, 2011: 679 (notes).</p> <p> <b>Distribution.</b> Myanmar.</p>Published as part of <i>Wang, Qiang, Zhang, Chuntian & Wang, Xinhua, 2015, Review of the genus Parerigone Brauer (Diptera: Tachinidae) with five new species from China, pp. 457-478 in Zootaxa 3919 (3)</i> on page 460, DOI: 10.11646/zootaxa.3919.3.2, <a href="http://zenodo.org/record/241280">http://zenodo.org/record/241280</a>
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Meigenia tridentata Mesnil 1961
No full textMeigenia tridentata Mesnil, 1961 * Meigenia tridentata Mesnil, 1961: 703. Type locality: China, Heilongjiang, Datudinzsa. Material examined: North Korea, Chǒngdžin-si Prov., Kjǒngsǒng distr., Onpho-ri ad Chǒngdžin, 16. 08. 1959, 1 male, leg. B. Pisarski and J. Prószyński. Distribution: Palaearctic: Russia: Far East (Amur Prov., Khabarovsk Territory and Primorsk Territory) (Richter 2004), China Provinces: Beijing M., Heilongjiang, Hubei, Liaoning, Sichuan, Shaanxi, Shanxi, Tibet; Oriental: China Provinces: Guangxi Zhuangzu A. R., Guizhou, Hunan, Jiangxi, Yunnan, Zhejiang) (O’Hara, Shima & Zhang 2009). First record from Korea.Published as part of DRABER-MOŃKO, Agnieszka, 2015, State of knowledge of the tachinid fauna of Eastern Asia, with new data from North Korea. Part V. Exoristinae, pp. 79-98 in Fragmenta Faunistica 58 (2) on page 82, DOI: 10.3161/00159301FF2015.58.2.079, http://zenodo.org/record/625182
Microspio Mesnil 1896
No full textGenus <i>Microspio</i> Mesnil, 1896 <p> <i>Microspio</i> Mesnil, 1896; type-species: <i>Spio mecznikowianus</i> Claparède, 1869.</p> <p> <i>Mesospio</i> Gravier, 1911; type-species: <i>Mesospio moorei</i> Gravier, 1911, by monotypy.</p> <p> <b>Diagnosis.</b> Prostomium anteriorly rounded to deeply incised, frontal or lateral horns always absent; eyes present or absent; occipital antenna present or absent. Nuchal organ with short median and long lateral ciliary bands, extending to chaetiger 2 or 3; metameric dorsal ciliated organs present. Branchiae present from chaetiger 2, restricted to anterior region or continuing to posterior end of body; partly fused at base with notopodial postchaetal lamellae. Notochaetae and anterior neurochaetae all capillaries; capillaries, hooded hooks and inferior sabre chaetae on middle and posterior chaetigers; hooks bi-, tri-, or multidentate. Pygidium with 2–4 anal cirri.</p>Published as part of <i>Götting, Miriam, 2015, Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes, pp. 378-413 in Zootaxa 4019 (1)</i> on page 399, DOI: 10.11646/zootaxa.4019.1.15, <a href="http://zenodo.org/record/234234">http://zenodo.org/record/234234</a>
Figure 1 in New species of Hygiella Mesnil (Diptera: Tachinidae), parasitoids of leaf insects (Phasmatodea: Phylliidae)
No full textFigure 1. Male head in dorsal view (A, B) and lateral view (C). (A, C) Hygiella angustifrons sp. nov. (B) Hygiella nigripes Mesnil. Scales: 1 mm.Published as part of Hiroshi Shima & Takuji Tachi, 2016, New species of Hygiella Mesnil (Diptera: Tachinidae), parasitoids of leaf insects (Phasmatodea: Phylliidae), pp. 1648-1668 in Journal of Natural History 50 (25) on page 1653, DOI: 10.1080/00222933.2016.1145751, http://zenodo.org/record/26990
Dipolydora giardi Mesnil 1896
No full text<i>Dipolydora giardi</i> (Mesnil, 1896) <p>(Fig. 2)</p> <p> <i>Polydora giardi</i> Mesnil, 1896: 195 –202, pl. 13, figs. 1–12. Fauvel, 1927: 50 –52, fig. 17 h–m.</p> <p> <i>Dipolydora giardi</i>: Blake, 1996: 186. [New combination introduced. <i>D. giardi</i> record uncertain].</p> <p> <b>Material</b>. <b>FRANCE</b>: La Manche, coll. & id. F. Mesnil, accessioned ZMUC 22 June 1896, ZMUC POL­ 653 (3 spec.). <b>ITALY</b>: Ischia Is., Gulf of Naples, 40°44.8' N, 13°56.7' E, 2 m, from shells of the whelks <i>Stramonita haemastoma</i> (L.) and <i>Hexaplex trunculus</i> (L.), coll. V. I. Radashevsky, 18 Jul 1994, BMNH 2002.620–629 (17 spec.).</p> <p> <b>Comparative material</b>. <i>Dipolydora trilobata</i>: <b>RUSSIA</b>: Sea of Japan, Vostok Bay of Peter the Great Bay, 42°53.6' N, 132°44.1' E, from shells of the oyster <i>Crassostrea gigas</i> (Thunberg), ZISP 1/46576­3/46578 (holotype + 19 paratypes); IMBV 1/12171 (50 paratypes); USNM 183520 (30+ spec.).</p> <p> <b>Description</b>. Mesnil’s material consists of three complete individuals 3–4 mm long and 0.3–0.4 mm wide for c. 60, 70, and 75 chaetigers. One individual regenerating two anterior segments. Largest complete specimen from Italy c. 4 mm long and 0.3 mm wide for 60 chaetigers. Body pigmentation absent. Prostomium incised to bifid anteriorly. Caruncle extending posteriorly to end of chaetiger 3. Eyes and nuchal antenna absent (Fig. 2 A). Palps extending posteriorly for 10–15 chaetigers.</p> <p>Chaetiger 1 with postchaetal lamellae in both rami; both noto­ and neurochaetae short capillaries, fewer than in following chaetigers. Posterior notopodia with only capillaries, without spines.</p> <p>Chaetiger 5 greatly modified, larger than chaetigers 4 or 6, without postchaetal lamellae, with 2 or 3 dorsal superior geniculate capillaries (Fig. 2 H), 4 or 5 major spines alternating with bilimbate­tipped companion chaetae (Fig. 2 I), and a tuft of 4 or 5 ventral capillaries (Fig. 2 G). Major spines falcate, with lateral tooth on one side and fine spur or protuberance on the other side; spines arranged in a slightly curved diagonal row; lateral tooth occasionally broken in older spines positioned in anterior part of the row.</p> <p>Hooded hooks in neuropodia from chaetiger 7, up to 5 in a series, accompanied by single, winged inferior capillary chaetae in chaetigers 7–9 (Fig. 2 D) and by 1 or 2 hair­like capillaries situated between hooks in a few posterior chaetigers (Fig. 2 E). Hooks bidentate throughout, with angle between main fang and shaft wider in posterior chaetigers; hook shaft slightly curved, without constriction (Fig. 2 C, F).</p> <p>Branchiae from chaetiger 9–10, usually from 10 but one specimen with short branchial buds present on chaetiger 9 (Fig. 2 A); branchiae full­sized from chaetiger 11, absent from posterior half of body. Branchiae flattened, with surfaces oriented parallel to body axis, free from notopodial postchaetal lamellae.</p> <p>Pygidium small, cup­shaped, with one ventral lobe and two smaller dorsal lobes, appearing white because of large number of spindle­shaped mucous cells (Fig. 2 B). Glandular pouches from chaetiger 6, full­sized from chaetiger 7 or 8, diminishing in size after chaetiger 10 or 11.</p> <p>Gizzard­like structure present at about chaetiger 17. Hind gut white.</p> <p>Metanephridia opening middorsally via two separate nephridiopores on fertile segments apparent under methyl­green staining in a 40­segment posterior fragment from Italy which had oocytes up to 130 µm in diameter in middle segments. No sperm were recognized in this fragment or in other specimens.</p> <p> <b>Methyl­green staining patterns.</b> Head and anterior chaetigers do not retain stain. Staining dorsally as paired spots, one on each half of chaetiger, usually from chaetiger 8 or 9, occasionally from chaetiger 7; size of spots and intensity of staining gradually increasing posteriorly.</p> <p> <b>Remarks.</b> No differences in size, morphology and life style (boring in calcareous substrata) could be detected between the Mesnil’s worms from northern France and those from the Mediterranean and thus we are confident they are <i>D. giardi sensu stricto</i> Mesnil as indicated. Two specimens from the Mesnil’s sample found in Copenhagen have an indistinct pygidium, but one of them clearly has a middorsal cleft and two dorso­lateral clefts that divide the cup into one ventral lobe and two smaller dorsal lobes. The same trilobed pygidium was also invariably present in all specimens collected by us from Italy.</p> <p> <i>Dipolydora trilobata</i> specimens examined for the comparison resemble <i>D. giardi</i> in that they also have an incised to bifid prostomium, caruncle extending to the end of chaetiger 3, pygidium with three small lobes, major falcate spines of chaetiger 5 with large lateral tooth on one side and a smaller accessory spur on the other side. Maximal size of worms and boring mode of life are also identical. Both species lack eyes, occipital antenna and modified spines in posterior notopodia. However, branchiae in <i>D. giardi</i> begin on chaetiger 10 (19 specimens in 20 examined), rarely on chaetiger 9 (1 specimen), whereas in <i>D. trilobata</i> they usually start on chaetiger 9 (46 specimens in 83 examined), occasionally on chaetiger 8 or 10 (23 and 13 specimens in 83 examined, respectively), and rarely on chaetiger 7 (1 specimen). Hooded hooks in <i>D. giardi</i> are distinctly bidentate in all neuropodia, whereas in <i>D. trilobata</i> they become unidentate in 2–5 posterior chaetigers (Radashevsky 1993: fig. 17I). A more fundamental difference may be that Mesnil's <i>D. giardi</i> were reportedly simultaneous hermaphrodites (Mesnil 1896: p. 200) while <i>D. trilobata</i> is a gonochoristic species (Radashevsky unpublished). The description of gamete arrangement in <i>D. giardi</i> provided by Mesnil is, however, ambiguous and hermaphroditism in the species needs to be confirmed by further studies.</p> <p> <i>Polydora anoculata</i> Moore, 1907 from Massachusetts is also a similar species. Blake (1971) examined the holotype and emended the diagnosis. Subsequently Maciolek (1984) did not find differences between Moore’s and Mesnil’s species and placed <i>P. anoculata</i> into the synonymy of <i>P. giardi</i>. Blake (1971) and Maciolek (1984) reported that specimens from Massachusetts and North Carolina had the caruncle extending posteriorly to chaetiger 3–5, branchiae beginning from chaetiger 9–10, and the pygidium small and disclike, with only a dorsal notch. However, these characteristics indicate that <i>Dipolydora anoculata</i> is not only validly described, but also distinct from <i>D. giardi</i> and <i>D. trilobata</i>.</p>Published as part of <i>Radashevsky, Vasily I. & Petersen, Mary E., 2005, On the morphology and distribution of Dipolydora giardi and status of D. trilobata (Annelida: Spionidae), pp. 25-36 in Zootaxa 1086</i> on pages 28-31, DOI: <a href="http://zenodo.org/record/170484">10.5281/zenodo.170484</a>
Arenicolides Mesnil 1898
No full textGenus Arenicolides Mesnil, 1898 Arenicolides branchialis (Audouin & Milne-Edwards, 1833) DISTRIBUTION: NA, CA. LITERATURE RECORDS: Lorenz 1863; Meštrov 1957; Zavodnik 1967 b; Požar-Domac 1994; Zavodnik & Kovačić 2000; Castelli et al. 2008. OTHER REPORTED NAMES: Arenicola branchialis (Audouin & Milne-Edwards, 1833); Arenicola grubii Claparède, 1869.Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 20, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/24466
Dipolydora caulleryi Mesnil
No full text<i>Dipolydora caulleryi</i> (Mesnil) <p> <i>Polydora caulleryi</i> Mesnil, 1897</p> <p> <i>Polydora brachycephala</i> Hartman, 1936 b</p> <p>Ecology: FT</p> <p>Distribution: PA, NA</p> <p>Habitat: ES</p> <p>Comments: The widespread distribution (and habitat preferences) of this species on both the east and west coasts of North America, and in Europe, suggests that multiple species have been reported under this name and/or human-assisted introductions have occurred. Additional references: Hartman (1936b), Wesenberg-Lund (1958), Blake (1971)</p>Published as part of <i>Glasby, Christopher J., Timm, Tarmo, Muir, Alexander I. & Gil, João, 2009, Catalogue of non-marine Polychaeta (Annelida) of the World, pp. 1-52 in Zootaxa 2070</i> on page 29, DOI: <a href="http://zenodo.org/record/187085">10.5281/zenodo.187085</a>
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