New <i>Hamacantha</i> from Peru and resurrection of <i>Zygherpe</i> as subgenus (Demospongiae, Poecilosclerida, Hamacanthidae)
Bibliographic record
Abstract
Two species of <i>Hamacantha</i> with tylostyles are reported here for the Peruvian coast, namely <i>H. desmacelloides</i> sp.nov. and <i>H. hyaloderma</i>. The former is the first species in the genus with apically microspined sigmas, similar to those known to occur in <i>Neofibularia</i>, and recently reported from genera <i>Biemna, Desmacella, Rhabderemia</i> and <i>Sigmaxinella. Hamacantha hyaloderma</i> was previously known from Mexico to Canada, and is here reported for the first time from the south east Pacific. The finding of a second species with tylostyles led us to reinstate subgenus <i>Hamacantha (Zygherpe)</i>. The possible phylogenetic significance of apically microspined sigmas is discussed in view of recent findings on the basis of molecular data.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.018 | 0.000 |
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; both teacher heads agree on what is shown here.
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".