Bibliographic record
Abstract
Leptochiton belknapi Dall, 1878 Leptochiton belknapi Dall 1878: 1. While the species was originally described from the Bering Sea of the Alaskan Aleutian Islands, from a depth of 1840 m “only”, there are subsequent deeper records of this species from the following localities: specimen number unknown; [described as Leptochiton benthus, which is a junior synonym] from the North Pacific, 15° north of Hawaii (35°41'N, 157°42'E), 4206 m (Haddon 1886) specimen number unknown; [described as Lepidopleurus mesogonus, which is a junior synonym] from Canada, British Columbia, off the Queen Charlotte Islands [53°06’N, 132°14’W], 2904 m (Dall 1902) specimen number unknown; [described as Lepidopleurus halistreptus, which is a junior synonym] from Mexico, off Acapulco (14°46'N, 98°40'W), 3436 m (Dall 1902) [locality data from Dall 1908] 3 specimens [described as Lepidopleurus giganteus, which is a junior synonym] from Indonesia, south of Sulawesi Tengarra, Banda Sea (06°24'S, 124°39'E), 2798 m (Nierstrasz 1905) specimen number unknown; [described as Lepidopleurus opacus, which is a junior synonym] from the Gulf of Panama (07°05'30''N, 79°40'W), 2323 m (Dall 1908) specimen number unknown; [described as Lepidopleurus opacus] from between the Galapagos Islands and the Peruvian coast (04°33'S, 87°42.5'W), 3667 m (Dall 1908) 1 specimen [as Lepidopleurus (Leptochiton) benthus (Haddon, 1886)] from the eastern Pacific (15°N, 125°W), 4000 m (Hanselman 1977) Lepidopleurus benthus (Haddon, 1886) was generally mentioned as occurring at a depth below 4000 m (Sirenko 1977) 4 specimens [as Leptochiton alveolus] from the United States of America, Oregon, off Lincoln County (44°33.5'N, 125°14.6'W), 2000 m (Ferreira 1979) [this is “CASIZ RV Ancona ”, data from: http:// www.calacademy.org/research/izg/iz_coll_db/index.asp] 3 specimens [as Leptochiton alveolus] from the United States of America, California, 10 miles SE off Farallon Islands, SW by S1/4 S (37°48'N, [122°58’W]), 2341–2741 m (Ferreira 1979) [this is “CASIZ USS Mulberry; RV Scofield ”, data from: http://www.calacademy.org/research/izg/iz_coll_db/index.asp] 3 specimens [as Leptochiton alveolus] from Mexico, off Nayarit, Las Tres Marias Islands (21°25'N, [106°28’W]), 2996–2999 m (Ferreira 1979) [this is “CASIZ 009520”, data from: http://www.calacademy.org/research/izg/iz_coll_db/index.asp] 1 specimen [as Leptochiton alveolus] from Japan, near Northern Honshu, 2500 m (Ferreira 1979) [this is “CASIZ 001818”, data from: http://www.calacademy.org/ research/izg/iz_coll_db/index.asp] 1 specimen [as Leptochiton alveolus] from off Baja California Sur southwest of Cabo San Lucas (22°30.8' 22°37.2'N, 110°03.8' 110°15.5'W), 2507–2891 m (Ferreira 1980) 1 specimen from off northeastern Honshu, Japan (38°21.7'N, 143°25.9'E), 2930–3020 m (Wu & Okutani 1984) 4 specimens from south of IzuShoto, Japan (30°37.0'N, 140°40.5'E), 2140 m (Wu & Okutani 1984) 1 specimen from IzuShoto, Japan (31°58.1'N, 140°21.0'E), 2230–2245 m (Wu & Okutani 1984) 1 specimen from the Philippines (06°08'N, 125°58'E), 2800 m (Kaas 1990) 2 specimens from the Philippines (05°02'N, 125°15'E), 3250 m (Kaas 1990) 1 specimen from the Philippines (14°05'N, 120°02'E), 2050 m (Kaas 1990) specimen number unknown; from the Commander Islands [54°48’N, 166°59’E], 100–4400 m (Sirenko & Agapova 1997)
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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 | 0.002 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.011 | 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".