Indopolystoma parvum Chaabane & Verneau & Preez 2019
Bibliographic record
Abstract
Indopolystoma parvum n. gen. n. sp. (Figs. 7 and 8; Table 4) urn:lsid:zoobank.org:act: 6C7F74C6-BFEE-4277-903B-2A531FD09C63 Synonym: Polystoma sp. of Verneau et al. [51], Badets et al. [2] and Héritier et al. [22]. Type-host: Rhacophorus omeimontis (Stejneger). Now Zhangixalus omeimontis (Stejneger) [21, 27]. Site: Bladder. Type-locality: Wawu Shan, Hongya Xian, Sichuan province, China. Collector: Professor Anne Marie Ohler, Muséum National d’ Histoire naturelle (MNHN), Paris, France. Type-specimens: Holotype (MNHN HEL1187) and paratype (MNHN HEL1188) deposited in the Parasite Collection, National Museum of Natural History, Paris, France. Etymology: The species name parvum refers to its small body size. Description Description based on two unflattened specimens stained in carmine and mounted in Canada balsam. Body elongate, total length 4714 (4536–4891), including haptor; greatest width 1916 (1701–2130); width at vagina 1402 (1279–1525). Haptor circular in outline, 667 (584–749) long, 1258 (1022–1494) wide. Haptor/total body length ratio 0.14 (0.12–0.165). Suckers 335 (281–389) in diameter. Hamuli 326 (311–340) long; with hook 52 (39–64) long (Fig. 8A–A ’’’). Marginal hooklet C1 32 long; C2–C8 (19–20) long (Fig. 8B–B ’’). Mouth ventral, sub-terminal and surrounded by false oral sucker; false oral sucker 395 (358–431) wide. Pharynx pyriform, 191 (187–194) long, 190 (174–205) wide. Oesophagus not visible. Intestine bifurcate with medial diverticula highly branched lacking prehaptoral anastomoses. Caeca confluent posteriorly, extending into haptor forming haptoral anastomosis. Testis lying on body midline anterior to ovary. Seminal vesicle prominent and packed with sperm. Genital bulb slightly sclerotized, medio-ventral, 83 (75–90) in diameter, with eight sclerotized genital spines; genital spines 17 (16–18) long. Ovary prominent, sinistral and packed with oocytes; ovary 545 (483–606) long, 269 (231–306) wide. Ootype well developed. Genito-intestinal canal present on same side of body as ovary, joining intestinal caecum posterior to ovary. Uterus confined to dextral and anterior to ovary holding one egg; egg 221 (219–222) long, 103 (93–113) wide. No intrauterine development of eggs observed (Fig. 7). Differential diagnosis Indopolystoma parvum can be easily distinguished from I. viridi and I. elongatum by its body size, haptor shape and general morphology of intestine. This species is much smaller than I. elongatum (4714 µm vs. 14,791 µm) while it is only half the size of I. viridi (4714 µm vs. 8550 µm). It shows haptor sub-spherical (vs. sub-rectangular) and intestinal caeca with haptoral anastomosis. It differs from all other congeners, apart from I. pingbianensis, in lacking medial anastomoses. Indopolystoma parvum is smaller than I. pingbianensis (4714 µm vs. 9428 µm).
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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 | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.023 | 0.006 |
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".