Martiodrilus (Botaria) flavus Decaens & Bartz 2024, n. sp.
Notice bibliographique
Résumé
Martiodrilus (Botaria) flavus Decaëns & Bartz, n. sp. (Figs 2F; 6) urn:lsid:zoobank.org:act: 72B28D19-6D97-473A-924C-8053998DF36F TYPE MATERIAL. — Holotype. French Guiana • Adult (with posterior regeneration); Tumuc-Humac, Mitaraka Massif, transition forest on DIADEMA project C trail, in decaying trunk; 2°14’19”N, 54°26’6”W; 389 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0001; MNHN. Paratypes. French Guiana • 3 adult specimens; Tumuc-Humac, Mitaraka Massif, plateau forest on DIADEMA project D trail; 2°12’57”N, 54°27’25”W; 381 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0008, EW-MI15-0009, EW-MI15-0010; CEFE • 2 adult specimens; Tumuc-Humac, Mitaraka Massif, slope forest on trail to Sommet en Cloche Inselberg; 2°14’6”N, 54°27’11”W; 352 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0358, EW-MI15-0359; MNHN. OTHER MATERIAL EXAMINED. — French Guiana • 1 juvenile specimen; Tumuc-Humac, Mitaraka Massif, plateau forest at base camp; 2°14’2”N, 54°27’1”W; 331 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0175; MNHN • 1 juvenile specimen, 8 cocoons; Tumuc-Humac, Mitaraka Massif, plateau forest on DIADEMA project D trail; 2°12’57”N, 54°27’25”W; 381 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0024, EW-MI15-0028, EW-MI15-0012, EW-MI15-0013, EW-MI15-0014, EW-MI15-0015, EW-MI15-0016, EW-MI15-0017, EW-MI15-0018; MNHN. ETYMOLOGY. — This species is named in reference to the remarkable yellow pigmentation of the body observed in most adult specimens. ECOLOGY. — Martiodrilus (B.) flavus Decaëns & Bartz, n. sp. was predominantly found in plateau forests (81.25% of specimens) and other well-drained habitats such as slope forests (12.5%) and transition forest at the edge of rocky savannah (6.25%) (Fig. 6G). It preferentially inhabits under large decaying trunks fallen at the soil surface (81.25%), but was also occasionally found within the soil (18.75%) (Fig. 6H). Cocoons are tan yellow, spherical, 15-20 mm in diameter, with marked mucrons at the anterior and posterior ends. DISTRIBUTION. — Martiodrilus (B.) flavus Decaëns & Bartz, n. sp. is known from the Mitaraka Massif. DESCRIPTION External morphology (Fig. 6A, B) Body shape cylindrical. Body pigmentation yellow when alive (Fig. 2F) sometimes with a transition to grey toward the tail and in regerating parts of the body, clitellum pink when alive, dark beige after ethanol fixation. Body length: 285 mm in the holotype, 265 to 300 mm in the paratypes (average: 283.3 mm; n = 3), after ethanol fixation. Body mass: 21.32 g after ethanol fixation in the holotype, 15.45 to 23.70 g in the paratypes (average: 20.56 g; n = 3). Diameter: 9.3 to 12.5 mm in the preclitellar region, 12.2 to 13 mm in the clitellum, 10.5 to 13 mm in the postclitellar region. Number of segments: 234 in the holotype, 245 to 264 in the paratypes (average: 254.7; n = 3). Prostomium proepilobic. Setae closely paired, ab and cd beginning in III or IV. Setal arrangement aa:ab:bc:cd:dd = 10:1:12:1:34. Clitellum in (½ XIII) XIV-½ XXVI, saddle-shaped (Fig. 6A). Genital markings in V-XIII, intraclitellar in XIV-XXIV (ab position). Tubercula pubertatis linear in XIX-XXV (Fig. 6B). Male pores not recognised, and ovipores in XIV, anterior and slightly dorsal to b. Spermathecal pores in 5/6, 6/7 and 7/8, in line of ab. Nephridial pores begining in III-IV, in D line. Internal anatomy (Fig. 6 C-F) Septa: membranous, slightly thickened in 9/10 to 13/14. Gizzard: muscular and well developed in VI, but displaced to X, XI, with an average size (width × length) of 6.15 × 8.05 mm. Calciferous glands: eight pairs in VII-XIV, yellow bean-shaped with a brown round distal appendix in VII-XII, deprived of appendix and kidney-shaped in XIII-XIV; all with composite tubular structure. Esophagus-intestine transition in XIX; intestine without caeca. Typhlosole abruptly begining in XXV, structured as a large folded tissue (Fig. 6E, F). Hearts: six pairs, the two intestinal pairs well developed in X-XI, enclosed in the testes sacs. Excretory apparatus holoic, nephridia with simple nephrostome. Testes sacs: midventral or hypoesophagic in X and XI. Seminal vesicles: two pairs in XI-XII, short and flat lobulated, and respectively inserted ventrally in X and XI by a tube passing through the septa. Spermathecae: three pairs, VI, VII and VIII, without diverticula (Fig. 6D). REMARKS Of the Martiodrilus species found in French Guiana, M. (B.) flavus Decaëns & Bartz, n. sp. is easily distinguished by its relatively large size and yellow to grey skin pigmentation. The presence of three pairs of spermathecae links it to Botaria, however it differs from the other 22 species in the subgenus by their position in 5/6-7/8 instead of 6/7-8/9. It is similar in the position of the clitellum to Martiodrilus (Botaria) vassae Zicsi & Czusdi, 1999 and Martiodrilus (Botaria) gara Righi, 1995, but differs in the position of the tubercula pubertatis in XIX-XXV instead of XXI-XXV in M. (B.) vassae or XIX-XXIII, ½XXIV in M. (B.) gara. It also differs from M. (B.) gara by its larger size (265 to 300 mm, instead of 50 to 100 mm), and from both species by its yellow to grey pigmentation, instead of green in M. (B.) vassae and reddish-violet in M. (B.) gara. Martiodrilus (B.) flavus Decaëns & Bartz, n. sp. is clearly separated from the other Martiodrilus species of the Mitaraka Massif by its COI barcode (Table 2). This species corresponds to OTU#064 in Maggia et al. (2021).
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,002 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,008 | 0,003 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».