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Thuridilla sp.

Photographic identification review

Evidence for this exact frame

Reviewed hypotheses are preserved separately from the current archive label and from iNaturalist computer vision. They record what the photograph supports, what remains plausible, and what the frame cannot resolve.

2 assessments

Latest audit record

Conclusion: Thuridilla cf. sp. 7 sensu Martín-Hervás et al. (2021)

Reviewed by Codex identification research on Aug 27, 2026 · 85% reviewer confidence.

Reasoning recorded at review

  • Rhinophore tip is black
  • A narrow orange-red band lies immediately below the black tip
  • A conspicuously wider white band lies below the orange-red band
  • The visible band order and relative widths match Fig. 5(h)

Alternatives considered

  • Thuridilla sp. 6 sensu Martín-Hervás et al. (2021)

    Why plausible: Same black, orange-red and white apical sequence

    Comparison: Fig. 5(g) shows a much wider orange-red band and narrower white band

  • Thuridilla gracilis

    Why plausible: Current canonical label and superficially similar complex member

    Comparison: Fig. 5(a) lacks the broad white subapical band visible in this photograph

Evidence limits & sources +
  • • Expert taxonomic review of the original-resolution frame
  • • DNA evidence for definitive assignment to an undescribed lineage
Molecular phylogeny of Thuridilla and the gracilis species-complex ↗Primary paper · Martín-Hervás et al. 2021 · Fig. 5(h), p. 17Gary's Thuridilla diagnostic plate leadExpert opinion · Personal communication relaying the published plate · Fig. 5
Show 1 earlier assessment +

Earlier audit record

Conclusion: Thuridilla cf. sp. 7 sensu Martín-Hervás et al. (2021)

Reviewed by local operator on Aug 27, 2026 · 85% reviewer confidence.

Reasoning recorded at review

  • Rhinophore tip is black
  • A narrow orange-red band lies immediately below the black tip
  • A conspicuously wider white band lies below the orange-red band
  • The visible band order and relative widths match Fig. 5(h)

Alternatives considered

  • Thuridilla sp. 6 sensu Martín-Hervás et al. (2021)

    Why plausible: Same black, orange-red and white apical sequence

    Comparison: Fig. 5(g) shows a much wider orange-red band and narrower white band

  • Thuridilla gracilis

    Why plausible: Current canonical label and superficially similar complex member

    Comparison: Fig. 5(a) lacks the broad white subapical band visible in this photograph

Evidence limits & sources +
  • • Expert taxonomic review of the original-resolution frame
  • • DNA evidence for definitive assignment to an undescribed lineage
Molecular phylogeny of Thuridilla and the gracilis species-complex ↗Primary paper · Martín-Hervás et al. 2021 · Fig. 5(h), p. 17Gary's Thuridilla diagnostic plate leadExpert opinion · Personal communication relaying the published plate · Fig. 5

Connected record

What this frame carries

Date
Jul 17, 2026
Site
Coral Garden
Dive
Dive 1 - Coral Garden
Depth evidence
5.4m · dive-average
Water
25.0°C
Identification
85% confidence

Environmental values describe this archive encounter. Profile-estimated depth is aligned from capture time and the dive-computer profile; it is not camera-recorded depth.