Archimisophria (Copepoda: Misophrioida: Speleophriidae) first recorded from Arctic Ocean with the description of the new species
Bibliographic record
Abstract
Two new deep-water benthopelagic misophrioid copepods of the genus Archimisophria Boxshall, 1983 were collected from the High Arctic.A new species Archimisophria paradiscoveryi sp.n. is described based on specimens of both sexes.It is related to A. discoveryi Boxshall, 1983, but differs in several characters: 1) male antennulary ancestral segments XIX-XX are armed with two long and one short setae, 2) segments XXI-XXII carry a narrow ribbonlike chitinous thickening and lack a seta, 3) antenna proximal exopodal segment lacks a seta, and 4) the P5 is 5-segmented.The female of A. paradiscoveryi sp.n. is distinguished from A. discoveryi in the P5 having more than 3 segments and from all known congeners in having a P6 lateral seta reaching beyond posterior border of urosomite 3. The new species Archimisophria arctica sp.n. is known only from female.It shares the presence of sensory setae on the maxillule coxal and proximal endites with A. squamosa Alvarez, 1985 and A. paradiscoveryi sp.n., but differs from its congeners in P6 lateral seta short, not reaching posterior border of Gns in combination with tiny medial seta.The genus Archimisophria has been recorded from about 34°N and 24°S in the Atlantic Ocean and in the Indian Ocean without given locality and for the first time it is recorded from the high Arctic (82°N), thus representing the northernmost finding of the genus.This discovery is also the first record of the genus Archimisophria and family Speleophriidae in the Arctic Ocean.How to cite this paper: Markhaseva E.L., Zimina O.L. 2025.Archimisophria (Copepoda: Misophrioida: Speleophriidae) first recorded from Arctic Ocean with the description of the new species // Arthropoda Selecta.Vol.34.No.4.P.522-539.doi:10.15298/arthsel.34.4.06 РЕЗЮМЕ.Два новых вида глубоководных бентопелагических копепод мизофриоид рода Archi misophria Boxshall, 1983 были собраны из высоких широт Арктики.Новый вид Archimisophria paradiscoveryi sp.n.описан по экземплярам обоих полов.Он родственен A. discoveryi Boxshall, 1983, но отличается от него тем, что 1) анцестральные сегменты антеннулы XIX-XX самца вооружены двумя длинными и одной короткой щетинками, 2) сегменты XXI-XXII снабжены узким лентовидным хитиновым утолщением, но лишены щетинок; 3) проксимальный сегмент экзоподита антенны лишен щетинок, и 4) P5 5-сегментная.Самка A. paradiscoveryi sp.n.отличается от A. discoveryi Р5, состоящей из более чем 3 сегментов и от всех остальных сородичей латеральной щетинкой Р6, достигающей уросомита 3 в комбинации с крошечной медиальной щетинкой.Новый вид Archimisophria arctica sp.n.известен только по самкам.Он как A. squamosa Alvarez, 1985 и A. paradiscoveryi sp.n.имеет сенсорные щетинки на коксальных и проксимальных эндитах максиллулы, но отличается от всех своих сородичей короткой латеральной щетинкой P6, не достигающим задней границы Gns, в комбинации с крошечной медиальной щетинокй.Род Archimisophria отмечался в Атлантическом океане в широтах 34°с.ш.и 24°ю.ш., и известен из Индийского океана без указания местонахождения.Род впервые найден в высоких широтах Арктики (82° с.ш.) и представляет собой самую северную находку рода.Род Archimisophria и семейство Speleophriidae впервые зарегистрированы в Северном Ледовитом океане.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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".