<i>Alpheus richpalmeri</i>, a new species of snapping shrimp from the tropical eastern Atlantic (Malacostraca: Decapoda: Alpheidae)
Bibliographic record
Abstract
A new snapping shrimp, Alpheus richpalmeri sp. nov., is described based on three specimens collected in the muddy–rocky intertidal of São Tomé Island, Gulf of Guinea, tropical eastern Atlantic. The new species belongs to the Alpheus brevirostris (Olivier, 1811) species group, sharing a series of morphological features and a similar colour pattern with two Atlantic species of the group, e.g., Alpheus roblesi Bracken-Grissom and Felder, 2014 and Alpheus ulalae Bracken-Grissom and Felder, 2014, as well as with the Indo-West Pacific Alpheus platyunguiculatus (Banner, 1953). The new species may have been previously reported from the tropical eastern Atlantic by A. Crosnier and J. Forest (1966. Ann. Inst. Oceanogr. Monaco, 44: 199–314) under the name Alpheus floridanus floridanus Kingsley, 1878, which is clearly different from the lectotype of Alpheus floridanus Kingsley, 1878 upon which H.D. Bracken-Grissom and D.L. Felder (2014. Zootaxa, 3895(4): 451–491) based their redescription of this species. The form previously known as Alpheus floridanus var. africana Balss, 1916, or Alpheus floridanus africanus, is elevated to full species rank as Alpheus africanus stat. nov., based on morphological differences and geographical separation from A. floridanus.
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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 | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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".