Stricosus cardinalii Lobban and Theriot 2018, sp. nov.
Bibliographic record
Abstract
Stricosus cardinalii Lobban and Theriot sp. nov. (Figs 99–103) Holotype:— ANSP G.C. 20067 Isotype: — ECT 3569, GU44AI. Type locality: —Gab Gab Beach, Guam (13° 25.57’ N, 144 °38.57’ E). Material studied: —Wild and cultured Edward C. Theriot material isolated from the original collection: ECT 3569, epiphytes on macrophytes growing on coral reefs off Gab Gab Beach, Guam, USA (13° 25.57’ N, 144 °38.57’ E). Description: —Lengths observed were 111.4–232.1 μm and widths were 5.0–8.8 μm. Virga densities were 38–39 in 10 μm. Valves were convex in the middle, linear to convex in the flanking regions, and usually weakly concave towards the end, often forming a capitate apex (Figs 99–101). The sternum was prominent but evenly thin along the entire valve (Fig. 99). The deeply sunken ocellulimbi were 12–14 pores wide and 5–10 pores tall, with pore spacing at 3–4 pores per 1 μm and typically overhung by two spines (Fig. 102). The symmetrically shaped rimoportulae were oriented transapically, and each positioned about 2.3–2.7 μm from the end of each pole (Fig. 103). The bilayered wall was covered with biseriate striae externally, and there was a single pore internally at the junction of the face and mantle. Girdle bands were open and without pores. Remarks: —This species was recovered from the same material as that of S. harrisonii. There were 5 base pair differences in the psbC sequence (S. cardinalii lacked rbcL sequence) and could be distinguished by subtle but constant differences in shape. Whereas S. harrisonii had continuously convex margins from the center to the apex giving it a javelin-like appearance, S. cardinalii had a more complex shape, being convex in the middle, more linear or even weakly concave in the flanking regions, always becoming weakly concave towards the end. We also recorded much larger specimens of S. harrisonii than of S. cardinalii, DNA sequences associated with the cultured strain from which DNA was extracted was previously reported as Hyalosynedra sp. HK 363 in Lobban et al. (2015). The same slide was selected as the type for both species, and a pair of specimens in proximity to one another, one of each species, were circled by diamond scribe. Etymology: —This species was named in honor of André Cardinal, Canadian phycologist and diatomist, especially for his leadership in studies of the diatom flora of the St. Lawrence River estuary.
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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 | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.004 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.008 | 0.009 |
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".