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Fig. 18 in The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species
No full textFig. 18. Jaw suspensorium and opercle, Lithogenes wahari, left side, lateral view. Scale bar is 1 mm.Published as part of Schaefer, Scott A. & Provenzano, Francisco, 2008, The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species, pp. 1-52 in American Museum Novitates 3637 (1) on page 28, DOI: 10.1206/625.1, http://zenodo.org/record/539063
Fig. 27 in The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species
No full textFig. 27. Anal fin supports, Lithogenes wahari, left side, anterior toward left. Only the proximal portion of the branched fin rays is shown. Scale is 1 mm.Published as part of Schaefer, Scott A. & Provenzano, Francisco, 2008, The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species, pp. 1-52 in American Museum Novitates 3637 (1) on page 45, DOI: 10.1206/625.1, http://zenodo.org/record/539063
Fig. 22 in The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species
No full textFig. 22. Hyoid musculature, Lithogenes wahari, ventral view, anterior toward top. Schematic representation after removal of lips and the intermandibularis labialis from right side, lower lip of left side reflected ventrorostrally and separated from the intermandibularis labialis insertion. Drawing by Ian Hart.Published as part of Schaefer, Scott A. & Provenzano, Francisco, 2008, The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species, pp. 1-52 in American Museum Novitates 3637 (1) on page 34, DOI: 10.1206/625.1, http://zenodo.org/record/539063
Fig. 8 in The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species
No full textFig. 8. Pelvic-fin pad, left side, ventral view. A, B, Lithogenes wahari AMNH 233086, female; C, D, L. villosus AUM 28152, female; E, F, L. valencia holotype, MBUCV V-30740, male; G, H, Astroblepus sp. MEPN 1599. Scale bar is 5 mm in A, C, E, G; 1 mm otherwise.Published as part of Schaefer, Scott A. & Provenzano, Francisco, 2008, The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species, pp. 1-52 in American Museum Novitates 3637 (1) on page 14, DOI: 10.1206/625.1, http://zenodo.org/record/539063
Fig. 12 in The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species
No full textFig. 12. Scatter-plot of scores from analysis of relative warps on dorsal unilateral landmark coordinates for Lithogenes wahari. Pattern of shape contrasts described by the relative warp axes are depicted as twodimensional grid deformations relative to landmark coordinates in dorsal view (lower left). M, males; F, females.Published as part of Schaefer, Scott A. & Provenzano, Francisco, 2008, The Lithogeninae (Siluriformes, Loricariidae): Anatomy, Interrelationships, and Description of a New Species, pp. 1-52 in American Museum Novitates 3637 (1) on page 21, DOI: 10.1206/625.1, http://zenodo.org/record/539063
FIGURE 2 in A new phreatic catfish of the genus Phreatobius Goeldi 1905 from groundwaters of the Iténez River, Bolivia (Siluriformes: Heptapteridae)
No full textFIGURE 2. Phreatobius sanguijuela, new species, holotype, UMSS 1785, 42.1 mm SL. (A) lateral view; (B) dorsal view of head; (C) ventral view of head; scale bar is 5 mm.Published as part of Fernandez, Luis, Saucedo, Lisandro J., Carvajal-Vallejos, Fernando M. & Schaefer, Scott A., 2007, A new phreatic catfish of the genus Phreatobius Goeldi 1905 from groundwaters of the Iténez River, Bolivia (Siluriformes: Heptapteridae), pp. 51-58 in Zootaxa 1626 on page 55, DOI: 10.5281/zenodo.17927
FIGURE 3 in A new phreatic catfish of the genus Phreatobius Goeldi 1905 from groundwaters of the Iténez River, Bolivia (Siluriformes: Heptapteridae)
No full textFIGURE 3. Phreatobius cisternarum, syntype, FMNH 58580, 32.2 mm SL, dorsal view showing presence of eyes. Photograph by Mike Littmann, image courtesy of ACSI and FMNH Division of Fishes.Published as part of Fernandez, Luis, Saucedo, Lisandro J., Carvajal-Vallejos, Fernando M. & Schaefer, Scott A., 2007, A new phreatic catfish of the genus Phreatobius Goeldi 1905 from groundwaters of the Iténez River, Bolivia (Siluriformes: Heptapteridae), pp. 51-58 in Zootaxa 1626 on page 56, DOI: 10.5281/zenodo.17927
Fig. 3 in A New Species of Hisonotus (Siluriformes, Loricariidae) of the Upper Río Uruguay Basin
No full textFig. 3. Scanning electron micrograph of snout anterior rostral margin of Hisonotus ringueleti (AMNH 230702, female, 33.2 mm SL), scale bars 0.5 mm. Top, anterior view showing biserial arrangement of odontodes, 20×; bottom, magnification showing faceted odontodes of the ventrad series, 80×.Published as part of AQUINO, ADRIANA E., SCHAEFER, SCOTT A. & MIQUELARENA, AMALIA M., 2001, A New Species of Hisonotus (Siluriformes, Loricariidae) of the Upper Río Uruguay Basin, pp. 1-12 in American Museum Novitates 3333 on page 7, DOI: 10.1206/0003-0082(2001)3332.0.CO;2, http://zenodo.org/record/537047
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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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