Notice bibliographique
Résumé
Philobrya magellanica (Stempell, 1899) (Figure 12) Avicula (Meleagrina) magellanica Stempell, 1899: 230, pl. 12, figs. 13‒15. Stempelleria magellanica. Clasing 1918: 22-26. Avicula (Stempellia) magellanica. Odhner, 1922: 221. Philobrya capillata. Linse 2002: fig. 9.1.2-15; Jackson et al. 2015: fig. 3E. (Not Dell, 1964: 170: text figs. 2.5, 2.9, pl. 4, figs. 4, 5). Type localities: Punta Arenas, [53°10’S 70°54’W], 10 fathoms [18.3 m] and Bahía San Nicolás, [53°50’S 71°07’W], 15 fathoms [27.4 m], Strait of Magellan. Material examined: Photographs of a syntype from Punta Arenas (ZMB-Moll 51991). Strait of Magellan: Punta Arenas, [53°10’S 70°54’W] (MACN-In 12342-1: 1 spec); Canal David, 53°38.48’S 72°22.86’W, 40 m (MLP- Ma 16119: 10 spec, 1 v); Bahía Nash, 53°42’S 72°21’W, 30 m (MLP-Ma 16120: 1 spec); Cabo Holand, 53°48.63’S 71°37.46’W, 15‒25 m (MLP-Ma 16121: 1 spec); Bahía Rosa, 53°52.75’S 71°13.33’W, 25‒30 m (MLP-Ma 16122: 2 v). Beagle Channel: Dos Lomos, 54°51’S 68°19’W, 5‒10 m (MLP-Ma 16123: 1 spec); Bahía Ushuaia, 54°50’S 68°15’W, 18‒21 m (MLP-Ma 16124: 1 spec); Isla Conejo, 54°50.88’S 68°14.67’W, 16 m (MACN-In 44452: 2 spec, 6 v); Pozo Ángel, 54°50’S 68°14’W, 21 m (MLP-Ma 16125: 3 v); Puerto Carelo, 54°52’S 68°13’W, 12‒20 m (MLP-Ma 16126: 1 spec); Punta Segunda: 54°52’S 68°18’W, 74‒98 m (MLP-Ma 16127: 1 spec), 54°52’S 68°07’W, 21‒23 m (MLP-Ma 16128: 1 spec), 54°50.90’S 68°02.80’W, 12 m (MACN-In 44453: 4 spec, 3 v), 54°51.27’S 68°02.15’W, 14 m (MACN-In 44454: 1 spec), 54°51.27’S 68°02.12’W, 19 m (MACN-In 44455: 4 spec, 4 v); Isla Becasses, 54°57’S 67°01’W, 30‒40 m (MLP-Ma 16129: 6 spec, 1 v); Paso Richmond, [55°16’S 66°45’W] (MACNIn 24951: 1 spec); Monte Moat, 55°02’S 66°42’W, 15‒20 m (MLP-Ma 16130: 4 spec, 13 v); Cabo San Pío: 55°03’S 66°37’W, 30‒35 m (MLP-Ma 16131: 8 v), 55°06’S 66°29’W, 65‒80 m (MLP-Ma 16132: 2 spec, 3 v). Atlantic coast of Patagonia: Santa Cruz Province: Puerto Deseado: 47°45.30’S 65°52.90’W, intertidal (MACN-In 44445: 7 v), 47°45.41’S 65°52.64’W (MACN-In 44446: 1 spec), 47°45.42’S 65°52.60’W (MACN-In 44447: 1 spec), 47°45.54’S 65°52.20’W (MACN-In 44448: 1 spec), [47°45’S 65°55’W] (MACN-In 44449: 1 spec), 47°46.90’S 65°52.80’W, 6 m (MACN-In 44450: 1 spec, 1 v), 47°47.30’S 65°52.50’W, 8‒9 m (MACN-In 44451: 1 spec, 7 v). Tierra del Fuego Province: Río Grande [53°47’S 67°41’W] (MACN-In 12622: 1 spec). Isla de los Estados: Puerto Cook, [54°46’S 64°03’W] (MACN-In 35219: 1 spec); Puerto Vancouver, 54°52.44’S 64°03.37’W, 271 m (MACNIn 44456: 5 v). Burdwood Bank: 54°31.68’S 61°27.98’W, 137 m (MACN-In 44457: 21 spec, 34 v); 54°28.49’S 60°56.46’W, 102 m (MACN-In 44458: 43 v); 54°29.74’S 60°12.59’W, 95 m (MACN-In 44459: 3 spec, 8 v); 54°16.67’S 59°57.79’W, 96 m (MACN-In 44460: 2 spec, 27 v); 54°30.39’S 59°48.65’W, 105 m (MACN-In 44461: 17 v); 54°24.21’S 59°32.49’W, 86 m (MACN-In 44462: 4 spec, 39 v); 54°28.83’S 59°11.67’W, 122 m (MACN-In 44463: 2 spec, 14 v); 54°23.82’S 58°30.53’W, 135 m (MACN-In 44464: 1 spec, 5 v); 54°11.54’S 58°19.88’W, 90 m (MACN-In 44465: 1 spec, 10 v). Distribution: Atlantic coast of Patagonia, from Santa Cruz Province (this study) to Cape Horn (Linse 2002), Isla de los Estados (this study), Burdwood Bank (this study), Strait of Magellan (Stempell 1899; this study) and Beagle Channel (this study); intertidal to 430 m (living specimens: 5‒137 m). Description: Shell large (maximum L = 11 mm, fide Stempell, 1899), ovate to subcircular, high (H/L = 0.91 ± 0.03, n = 30), compressed (W/H = 0.53 ± 0.03, n = 30), moderately solid; with a wide, flat dorsal slope. Umbo narrow, pointed, subterminal, markedly ventrally curved; not outstanding from shell outline in smaller specimens, but somewhat projected in larger specimens. Umbonal angle: 100‒115° (n = 21). Dorsal margin with the anterior portion long, straight to slightly convex, markedly oblique forward and the posterior portion broadly arched, forming a continuous curve with the posterior margin. Ventral margin nearly straight in smaller specimens, becoming increasingly concave with growth. Prodissoconch D-shaped, with posterior end higher than anterior end, moderately projected ventrally, of 400‒ 430 µm Lp (n = 10), raised from dissoconch. Antero-dorsal and postero-dorsal areas sculptured with densely packed commarginal folds. Central area sculptured with microscopic pits. Pits ovate, forming numerous arcs that radiate from the apex and intersect at right angles, forming a quincuncial pattern. Dissoconch whitish, dull, sculptured with 15‒20 faint radial ribs. Periostracum thick, yellow to yellowish brown, extending up to 2 mm beyond calcified shell margin; forming low commarginal and radial folds; setae missing. Inner shell surface and shell margins smooth. Posterior adductor muscle scar located in the antero-posterior half of the valves, dorsally displaced. Hinge: Anterior and posterior series of G1b teeth forming an angle of 164‒172° (n = 8). All teeth in both series well-recognizable in specimens up to a length of 1.6 mm. Distal teeth of the posterior series partially disintegrated, forming pustules, in specimens longer than 2.0 mm. Distal teeth of the anterior series also forming pustules in specimens longer than 4.3 mm. Resilifer long and wide. Remarks: The narrowly pointed umbo and the periostracum with commarginal and radial folds, but lack of setae make Philobrya magellanica an easily recognizable species. Another species lacking periostracal setae is P. quadrata (Fig. 15), which, however, differs from P. magellanica by having a wider umbo and lack of radial periostracal folds. In addition, P. magellanica have larger umbonal angle (100‒115° vs. 85‒95°, respectively) and less evident posterior area of shell than P. quadrata. In general shell shape P. magellanica also resembles P. sublaevis (Fig. 17), from which it differs by its hooked umbo, pitted prodissoconch and lack of periostracal lamellae and setae (see Appendix 1). The specimens figured by Jackson et al. (2015: figs. 2G, 3G) as P. magellanica correspond to P. capillata.
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) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,000 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,015 | 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 ».