TWO NEW SPECIES OF MACROLAIMUS (NEMATODA: CHAMBERSIELLIDAE) WITH COMMENTS ON DIAGNOSTIC CHARACTERS FOR DISTINGUISHING SPECIES
Bibliographic record
Abstract
Two new species of Macrolaimus are described; nematodes were examined with light and scanning electron microscopy (SEM). Macrolaimus montrealensis sp.n., collected from lichen growing on the bark of a maple tree in the Montreal Botanical Garden in Montreal, Canada, is described. The new species is characterized by the similarity in lengths of the cheilostom and gymnostom, 4.0 - 7.0 (5.5 ± 0.9) µm and 3.0 - 6.0 (4.6 ± 1.0) µm, respectively; the lateral field with three incisures, the external incisures evident throughout the body length and the middle incisure most visible in the region of the vulva and at the posterior end of the body; the vulval lips protruding, the anterior lip more than the posterior; the short postuterine sac, 5.0 – 12.0 (8.1 ± 2.3) µm; the female tail, which is elongate conoid, curved ventrally, ending in an acute tip with a dorsally-curved mucro; the anal lips slightly protruding, mainly the posterior lip; phasmids near the posterior end of the tail; the male with paired, symmetrical spicules, curved ventrad; a manubrium with rounded proximal end, short calamus and curved lamina; the arc-shaped gubernaculum; two pairs of subventral precloacal and five pairs of postcloacal genital papillae. The second new species, Macrolaimus inecolensis sp.n., is characterized by the cheilostom 1.4 - 2.5 (1.9) times the length to the gymnostom, length of the female tail 47.0 - 52.0 (50.3) µm, a postuterine sac 12.0 - 20.0 (17.2 ± 3.6) µm long; and in the male genital papillae, three pairs precloacal and five postcloacal. Collected from filamentous epiphyte on a tree branch at the Institute of Ecology in Jalapa, Veracruz, Mexico. A revised identification key for the genus is provided.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".