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Record W7116951911 · doi:10.1139/cjz-2025-0101

Snailfishes (Cottoidei: Liparidae) from the Gully submarine canyon, western North Atlantic, with descriptions of two new species in <i>Paraliparis</i> and <i>Psednos</i>

2025· article· en· W7116951911 on OpenAlexaffvenue
Н. В. Чернова, Nathan K. Lujan, Trevor Kenchington

Bibliographic record

VenueCanadian Journal of Zoology · 2025
Typearticle
Languageen
FieldEnvironmental Science
TopicIchthyology and Marine Biology
Canadian institutionsBedford Institute of OceanographyRoyal Ontario MuseumUniversity of Toronto
Fundersnot available
KeywordsMesopelagic zoneCanyonLobeSubmarineSubmarine canyonPelagic zone

Abstract

fetched live from OpenAlex

At least three species of pelagic liparids are present in the Gully, a submarine canyon and Marine Protected Area. Paraliparis copei Goode et Bean, 1896 is resident at mesopelagic depths near the head of the canyon. One specimen collected in the same vicinity does not conform with any known species and is here described as Paraliparis nelsoni sp. nov.—a species with vertebrae 63, dorsal-fin rays 56, anal-fin rays 53, and a peculiar pectoral fin with 15 rays, the upper lobe (12 + 1 rays) at the mid-line of the body but the lower lobe (two rays) completely isolated and ventral, below the middle of the postocular distance. The specimen's predorsal length almost equals its precaudal length, its teeth sit densely in numerous oblique rows, while its gill opening reaches to the level of the fourth pectoral-fin ray. Additionally, a specimen of Psednos Barnard, 1927 collected near the canyon's mouth has unique characteristics (vertebrae 43, dorsal-fin rays 38, anal-fin rays 34, pectoral-fin rays 14, with two in notch and lower lobe shorter than upper lobe, mouth terminal at 45° to horizontal, gill slit 1.2 longer than eye, opercular bone elongate). It is here described as Psednos gulliensis sp. nov.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.945
Threshold uncertainty score0.110

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.196
Teacher spread0.186 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes2
Has abstractyes

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Same venueCanadian Journal of ZoologySame topicIchthyology and Marine BiologyFrench-language works237,207