Omodeoscolex tetraspermatheca Decaens & Bartz 2024, n. sp.
Bibliographic record
Abstract
Omodeoscolex tetraspermatheca Decaëns & Bartz, n. sp. (Fig. 21) urn:lsid:zoobank.org:act: ECE72D9E-C9DB-48FC-B69C-A4676C1DE816 TYPE MATERIAL. — Holotype. French Guiana • Adult; Tumuc-Humac, Mitaraka Massif, slope forest on DIADEMA project A trail, in decaying trunk; 2°14’16”N, 54°27’7”W; 344 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0203; MNHN. Paratypes. French Guiana • 1 adult specimen; Tumuc-Humac, Mitaraka Massif, slope forest on DIADEMA project A trail; 2°14’16”N, 54°27’7”W; 344 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0204; CEFE. ETYMOLOGY. — The species name refers to the presence of four unpaired spermathecae. ECOLOGY. — The two known specimens of O. tetraspermatheca Decaëns & Bartz, n. sp. have been collected in a decaying trunk in a slope forest (Fig. 21C, D). DISTRIBUTION. — Omodeoscolex tetraspermatheca Decaëns & Bartz, n. sp. is only known from the Mitaraka Massif. DESCRIPTION External morphology (Fig. 21A, B) Body shape cylindrical, slightly flattened posteriously. Body pigmentation dorsally reddish-brown, ventrally light yellow-brown. Body length: 18 mm in the holotype, 26 mm in the paratype, after ethanol fixation. Body mass: 0.04 g after ethanol fixation in the holotype, same in the paratype. Diameter: 1.6 to 1.8 mm in the preclitellar region, 1.5 to 2.6 mm in the clitellum, 1.4 to 2.5 mm in the postclitellar region. Number of segments: 117 in the holotype, 122 in the paratype. Prostomium tanylobic. Dorsal pore: begining in 4/5. Setae closely paired, beginning in II, ab ventral and cd sub-ventral. Setal arrangement aa:ab:bc:cd = 5:1:5:1, dd> ½ Ø. Clitellum in XIII-XX, annular. Genital markings in two transversal lips in 3/4XVI and 1/4XX, delimiting a rectangular acanthodriline male field. Male pores one ventral pair in XVIII, and ovipores one pair in XIV, presetal, internally diagonal to a. Spermathecal pores not visible. Nephridial pores in line of C. Internal anatomy Septa: membranous. Gizzard: absent. Calciferous glands: two pairs in XIV and XV, with lamellar structure, kidney-shaped and attached through the middle inside. Esophagus-intestine transition in XVI. Typhlosole absent. Hearts: five pairs, last three intestinal bigger and last pair in XII. Excretory apparatus holoic. Prostatic glands: two pairs in XVII and XIX, irregular lobulated shape. Ovaries: one pair in XIII, grape bunch-shaped. Testes: two pairs in X and XI. Seminal vesicles: one pair, very small in XII, attached to septum 11/12. Spermathecae: four unpaired midventral in VI to IX, roundball-sac-shaped. REMARKS Omodeoscolex tetraspermatheca Decaëns & Bartz, n. sp. is characterized by the presence of four unpaired spermathecae in VI-IX, whereas in the other known species of the genus with unpaired spermathecae there are three (O. touroulti Decaëns & Bartz, n. sp. and O. abamaensis Bartz & Decaëns, n. sp.) (Table 5). It also differs from the two previously described species by its COI-barcode (Table 3). This species corresponds to OTU#086 in Maggia et al. (2021).
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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 | 0.001 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.015 | 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".