Dallirhytis Kruglov & Starobogatov 1989
Bibliographic record
Abstract
Genus Dallirhytis Kruglov & Starobogatov, 1989 Kruglov and Starobogatov 1989: 15. aNon-native species. Type species: Lymnaea petersi Dall, 1905 = Limnaea ovata var. atkaensis Dall, 1884 (by original designation). Diagnosis: Shell medium in size, ovate-conical to almost ear-shaped, with well-developed acute spire (Fig. 3A, B). Whorls are conspicuously inflated. Praeputium cylindrical, oblong, dark-pigmented; penis sheath rather short and compact; its length is 2.5–3.0 less than the praeputium length (Fig. 4A). Penis with a (rudimentary) ring-shaped fixing swelling [Walter (1969) calls it the ‘penial knot’]; prostate with a single internal fold. Species richness: This is a monotypic genus. In addition to Dallirhytis atkaensis, Kruglov and Starobogatov (1989, 1993) listed another species, Lymnaea petersi Dall, 1905. However, we synonymize both species based on examination of samples of Ly. petersi kept in ZIN. We found that the conchological variability of Ly. petersi falls within the range of variability of D. atkaensis. The ranges of both taxa as accepted byKruglov and Starobogatov (1993) overlap almost completely. Dallirhytis atkaensis has a very characteristic shell appearance and can hardly be confused with another pond snail species of Beringia. Distribution: A Beringian taxon known from Alaska, the Yukon Territory, northern British Columbia, and the Chukchi Peninsula (Burch 1989, Kruglov 2005, Aksenova et al. 2023).
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 0.002 |
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".