<i>Akawaio penak</i>, a new genus and species of <scp>N</scp>eotropical electric fish (<scp>G</scp>ymnotiformes, <scp>H</scp>ypopomidae) endemic to the upper <scp>M</scp>azaruni <scp>R</scp>iver in the <scp>G</scp>uiana <scp>S</scp>hield
Bibliographic record
Abstract
A kawaio penak , a new genus and species, is described from the upper M azaruni R iver, G uyana. The new species is diagnosed from all other species of H ypopomidae by several anatomical traits. The phylogenetic affinities of the new genus were inferred using data from one nuclear (rag2) and two mitochondrial ( COI and cyt b ) genes. The phylogenetic analyses indicate that A kawaio is the sister taxon of a clade that includes B rachyhypopomus , H ypopomus , M icrosternarchus and R acenisia . These results provide evidence for the phylogenetic composition of H ypopomidae supported by previous molecular studies and support the position of the S teatogenini ( H ypopygus + S teatogenys ) as the sister group of R hamphichthys + G ymnorhamphichthys . The description of this new electric knifefish increases the total number of endemic genera and species in the upper M azaruni, a region that is suffering freshwater habitat degradation as consequence of gold‐mining activities.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".