Porrhomma nekolai Růžička 2018, new species
Bibliographic record
Abstract
Porrhomma nekolai new species Figs. 38A–F, 39. Male holotype, RUSSIA: Chukotka Autonomous Okrug, Christ Bay, env. of Egvekinot Town, SE slope, under stones, 15 Jul 1988, leg. Yu. M. Marusik (ZMMU). Paratypes: 1 ♀, with same data as for holotype; 1 ♂ 3 ♀, Egvekinot Town, S slope, stony habitats in mountain tundra, 15 Jul 1988, leg. Yu. M. Marusik; 1 ♀, Chukotka Autonomous Okrug, Amguema River, 67°03'N, 178°58'W, stony habitats, 22 Jul 1988, leg. Yu. M. Marusik; 1 ♂ 1 ♀, Magadan Area, Duchka River, env. of Magadan, 13 Sep 1986, leg. Yu. M. Marusik (ZMMU). ♀, CANADA: Yukon Territory, Kluane Lake, Cultus Bay, 61°11'N, 138°20'W, 1650 m a.s.l., 10–23 Jul 1993, leg. Yu. M. Marusik (CNC). Ƌ, USA, Iowa, Delaware County, Elk River East, ca 7 km WSW of Colesburg, 42.6284°N, 91.9209°W, 13 July 1998, leg. V. Růžička (NMP, No. P 6A 6384). Ƌ, USA, Iowa, Delaware County, Backbone Cave, July, 45 yds from end, u. wood (AMNH). Etymology. The species is named after Jeffrey C. Nekola (University of New Mexico, Albuquerque, USA). Diagnosis. A large group of species is characterised by embolus of middle length and S-shaped ascending parts of copulatory ducts: P. borgesi, P. cambridgei, P. convexum, P. errans, P. nekolai, P. oblitum, P. pygmaeum and P. rosenhaueri. P. nekolai new species can be distinguished from all these species by the following combination of characters: large species (CW> 0.70), eyes reduced (PME–PME 1.7–2.0), legs very long (Mt I/CW> 1.3). Description. Male holotype (from Chukotka, Christ Bay, Egvekinot Town, 15 Jul 1988). Carapace yellowbrown, 1.10 mm long, 0.77 mm wide, eyes reduced, PME–PME = 1.7 (Fig. 38A). Abdomen greyish-yellow. Fe I with one dorsal and one prolateral spine. Ti I with one prolateral spine, Ti I–II with one retrolateral spine. Mt I/CW = 1.43. Embolus of middle length with a narrow velum. AP has the form of a bird head, it is slender, narrowed (Fig. 38B). Male paratype (from Iowa, Delaware County, Elk River East, 13 July 1998): A palp (Fig. 39). Female paratype (together with holotype): carapace 0.78 mm wide, PME–PME = 1.8, Tm Mt I = 0.60, Mt I/ CW = 1.31. Ascending parts of the ducts are S-shaped. Spermathecae are formed behind the ascending part of the ducts (Figs. 38C–F). Variation. Ƌ ♀. Carapace 0.71–0.78 mm wide, PME–PME = 1.6–2.0, Tm Mt I = 0.58–0.61, Mt I/CW = 1.31– 1.47 (N = 4). Comments. I recorded my first male under stones in Iowa, in 1998. I was accompanied by Jeffrey C. Nekola, an author of the concept of algific talus slopes as palaeorefugia (Nekola 1999). In collections of the AMNH, I found the second male, collected in a cave, also in Iowa. Later, I obtained the material from Yukon Territory and Chukotka Peninsula, collected by Yuri M. Marusik during the research of spiders in stony habitats (Marusik 2004). I decided to choose a complete pair from Chukotka for the description. Ecology. Specimens from Chukotka and Yukon Territory were collected in stony habitats. In Iowa, one male was collected in algific talus slope developed in limestone and one in a cave. It is in coincidence with the knowledge that lithobiontic species colonise more cold habitats (such as freezing scree slopes and caves) in warmer parts of their distribution area (Růžička 1990, 2011; Růžička et al. 2012). Global distribution. North-East Asia; Nearctic: from Yukon Territory to Iowa. See Fig. 40.
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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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.009 | 0.003 |
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".