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File:Heterodoris robusta (cropped).png

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Summary

Description
  • A. Doridoxa walteri, morphological data from original description in Krause, 1892 [109], including external view, radular teeth and jaws.
  • B. Doridoxa ingolfiana Bergh, 1899 (junior synonym of D. walteri, see text for details), morphological data from original description in Bergh, 1899 [105], including external view, radular teeth and jaws.
  • C. “Doridoxa ingolfiana var.” from original description in Bergh, 1899 [105] (junior synonym of D. walteri, see text for details), showing denticulated central teeth.
  • D–J. External views and internal characters of Doridoxa walteri, preserved specimen (ZMMU Op-721, length 16 mm) from the Barents Sea (eastern Spitzbergen region), type locality of D. walteri.
    • D. Ventrolateral view.
    • E. Details of oral veil connected to the partly opened rhinophoral sheath, essentially similar to the pattern of oral veil in Tochuina. F. Jaws (light microscopy).
    • G. General overview of radula (SEM).
    • H. Central part of the radula with central and lateral teeth showing presence of both denticulated and non denticulated central teeth.
    • I. Details of the larger central teeth with distinct denticulation.
    • J. Details of the smaller central teeth without denticulation.
  • K, L. D. walteri, dorsal and ventral views respectively, preserved specimen from the Barents Sea (eastern Spitzbergen region, ZMMU Op-722, length 17 mm).
  • M. D. walteri, lateroventral view, preserved specimen (length 14 mm) from the Barents Sea showing details of oral veil connected to the partly opened rhinophoral sheaths.
  • N. Same specimen of D. walteri, central part of the radula with larger central teeth without distinct denticulation on lateral teeth.
  • O. Same specimen of D. walteri, details of the larger central teeth with and without denticulation on the same teeth.
  • P–X. External views and internal characters of Heterodoris robusta, specimen off Greenland and Canadian waters (ZMMU Op-723, length 39 mm) showing details of non bilobed oral veil connected to the partly opened rhinophoral sheaths.
    • P–R. Dorsal, ventral and lateral views respectively (live).
    • S. Details of oral veil (preserved).
    • T. Jaws (light microscopy).
    • U. General overview of radula with unicuspid central teeth and numerous hamate laterals, similar to the tritoniid Tochuina (SEM).
    • V. Details of the outer lateral teeth.
    • W. Details of the central part of the radula with central and inner lateral teeth.
    • X. Central part of the radula with central and lateral teeth showing presence of both smooth and weakly denticulated central teeth.
  • Scale bars: G, U– 300 μm, H, V, X– 100 μm, I, W– 30 μm, J– 50 μm, N– 80 μm, O– 40 μm.
Date
Source Korshunova, T., & Martynov, A. (2020). Consolidated data on the phylogeny and evolution of the family Tritoniidae (Gastropoda: Nudibranchia) contribute to genera reassessment and clarify the taxonomic status of the neuroscience models Tritonia and Tochuina. PLOS ONE, 15(11), e0242103. https://doi.org/10.1371/journal.pone.0242103
Author Published by Korshunova, T., & Martynov, A., with A by Krause and B-C by Bergh
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