Chimerothalassius Shamshev & Grootaert 2003
Bibliographic record
Abstract
Chimerothalassius Shamshev & Grootaert Chimerothalassius Shamshev & Grootaert, 2002: 131. Type species: Chimerothalassius ismayi Shamshev & Grootaert, 2002, by original designation. Diagnosis. The genus Chimerothalassius is distinguished from other parathalassiine genera by the following characters: head with gena scarcely projected below eye (Figs 12, 14, 27), mouthparts directed ventrally with fleshy labellum (e.g., Figs 14, 27), palpus elongate and narrow (Figs 12, 14), abruptly capitate apically and narrow basally (Figs 19, 27, 28), or broadly subtriangular; thorax with prosternum fused to proepisternum forming precoxal bridge, scutellum with 1 pair of strong dorsally directed setae near apex (e.g., Fig. 14); legs with fore coxa lacking field of short stout spinose setae on anterior surface, tarsomere 5 of each leg with medial apical projection, although sometimes weakly developed; wing (Fig. 22) with R 1 reaching costa before middle of wing, crossvein bm-m complete or incomplete, cell dm absent without veins M 2 and dm-m, CuA rounded, cell cua convex apically, CuA+CuP absent or vestigial, anal lobe not developed; male terminalia with hypopygium small (Figs 26, 29, 30), right epandrial lamella usually with dorsally directed ventral process (Figs 17, 24, 32), cerci symmetrical (or nearly so) and moderately short, hypoproct projected (Figs 18, 25, 33); female abdomen with apical segments retracted into segment 5 (Fig. 21), terminalia with syntergite 9+10 undivided and bearing acanthophorous setae and cercus narrowly rounded apically with prominent apical or preapical seta, or syntergite 9+10 divided and bearing acanthophorous spines and cercus pointed apically without apical seta (Fig. 21). Remarks. Species of Chimerothalassius are known from the Caribbean, Costa Rica, New Zealand (Figs 3–7) (Brooks & Cumming 2018) and now New Caledonia (Figs 8–10) (Cumming & Brooks 2019, as “Undescribed genus [New Caledonia]”). The genus is found on rocky, stony or sandy habitats of coastal beaches (Figs 4–7) and emerged rocks in rivers (Figs 9, 10) (Shamshev & Grootaert 2002; Brooks & Cumming 2018; Cumming & Brooks 2019).
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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 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 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".