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Isometra hordea John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.163-165, genital pinnules.
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Isometra hordea John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.163-165, distal brachials and pinnules, lateral view.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, specimen 1, lateral view.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, specimen 3, lateral view.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, specimen 2, genital pinnules.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, proximal pinnules.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, genital pinnules.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, cirrus tip.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.147-152, female, cirri.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.141-146, male, lateral view.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.141-146, male, specimen 2, lateral view.
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Isometra flavescens John, 1938, cotype, Natural History Museum, London (NHM) cat. no. 1938.12.7.141-146, male, genital pinnules.
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Isometra vivipara Mortensen, 1917, syntype, Zoologisk Museum Copenhagen CRI-53, specimen 1, ray bases and centrodorsal.
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Isometra vivipara Mortensen, 1917, syntype, Zoologisk Museum Copenhagen CRI-53, specimen 2, ray bases and centrodorsal.
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Isometra vivipara Mortensen, 1917, syntype, Zoologisk Museum Copenhagen CRI-53, specimen 3, cirri.
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Isometra vivipara Mortensen, 1917, syntype, Zoologisk Museum Copenhagen CRI-53, specimen 3, proximal pinnules.
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Isometra vivipara Mortensen, 1917, syntype, Zoologisk Museum Copenhagen CRI-53, specimen 3, genital pinnules.
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Isometra vivipara Mortensen, 1917, syntype, Zoologisk Museum Copenhagen CRI-53, specimen 2, division series.
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Phrixometra longipinna antarctica John, 1938, syntype, Natural History Museum (NHM) cat. no. 1938.12.7.115-117, male, lateral view.
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Phrixometra longipinna antarctica John, 1938, syntype, Natural History Museum (NHM) cat. no. 1938.12.7.118, female, lateral view.
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Specimen 1; centrodorsal, cirri, base of rays.
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Specimen 1; ray base close up with scale (mm).
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Specimen 2; proximal arms and pinnules.
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Specimen 1; proximal arm, pinnules, and oral ambulacra.
