Simorhynchotus Stebbing 1888
Notice bibliographique
Résumé
Genus Simorhynchotus Stebbing, 1888 (Figs 21–22) Simorhynchus Claus 1871: 156.— Claus 1879: 32 (key), 42–43.— Gerstaecker 1886: 486.— Claus 1887: 56 (key), 65. Simorhynchotus Stebbing, 1888: 1572.— Bovallius 1890: 46 (key), 48.— Spandl 1927: 178 (key).— Pirlot 1929: 161.— Hurley 1955: 182 (incl. key).— Yoo 1971: 63 (key).— Bowman & Gruner 1973: 53.— Zeidler 1978: 30 (key), 31.— Vinogradov et al. 1982: 381 (key), 390–391.— Nair 1995: 6 (key), 8.— Shih & Chen 1995: 212.— Vinogradov 1999: 1194 (key), 1195. Type species. Simorhynchus antennarius Claus, 1871 by monotypy and subsequent designation by Stebbing. Stebbing (1888) changed the spelling of Simorhynchus because it was “preoccupied among birds”. Type material could not be found at the MFN or ZMH and is considered lost. However, the description and figures provided by Claus (1871, 1879, 1887) for this species, readily characterise this genus. No specific type locality is given; just “Grosses Ocean” (the Pacific). Diagnosis. Body shape robust or globular. Head rounded with slight rostrum in males. Eyes occupying most of head surface; grouped in one field on each side of head. Antennae 1 of males with 2-articulate peduncle; flagellum with large, crescent-shaped callynophore, with small antero-distal lobe, with aesthetascs arranged in two-field brush medially; with three smaller articles inserted below antero-dorsal corner. Antennae 1 of females with 2- articulate peduncle; callynophore narrowly rectangular, with two smaller articles inserted terminally. Antennae 2 absent in females. Antennae 2 of males 5-articulate; strongly zig-zagged, with most articles folded back on each other; extending anteriorly under head and posteriorly between the gnathopoda and pereopoda to pereonite 7; basal article distinctly inflated, about half or less the length of following article; following three articles of similar length; terminal article very short, not folded, pointing posteriorly. Mandibular incisor relatively broad, with several teeth, with small distal lobe medially; in male orientated more or less parallel to palp. Maxillae 1 & 2 absent. Maxilliped with inner lobes completely fused; medial margin of outer lobes with membranous fringe. Gnathopod 1 simple. Gnathopod 2 sub-chelate; carpal process knife-shaped, armed with microscopic teeth or setae. Pereopods 3 & 4 distinctly shorter than pereopods 5 & 6. Pereopod 5; basis about 3 x as wide as merus, non-locking but may overlap with P6; articles 3–7 inserted terminally to basis. Pereopod 6; basis wider proximally, about 4 x as wide as merus, not operculate, does not overlap, or lock, with opposing pereopod; articles 3–7 inserted terminally to basis. Pereopod 7 reduced in size with large basis; all articles present; dactylus normal. Uropod 1 with articulated exopoda and endopoda. Uropods 2 & 3; endopoda fused with peduncle. Rami of all uropoda lanceolate, usually with serrated margins. Species. Simorhynchotus antennarius (Claus, 1871). Sexual dimorphism. Apart from the morphology of the mandibles and the antennae, females are more robust than males, especially in the pereon, as is found in Lycaea. In addition, the head of males is produced into a short, slightly pointed rostrum. Remarks. In the past Simorhynchotus has often been placed in the family Oxycephalidae based on the slightly pointed head of males. However, the length of the rostrum is no greater than that found in males of the families Pronoidae or Brachyscelidae, and in general body shape, and especially in the form of gnathopod 2, Simorhynchotus resembles members of the family Lycaeidae. The pereopoda, coxae and urosome are also more like Lycaeids than Oxycephalids. Thus, this genus is a link between the families Lycaeidae and Oxycephalidae. Very little is known about the biology of this genus. It has been recorded from the medusae Geryonia proboscidalis (Laval 1980) and Liriope tetraphylla (Gasca et al. 2014), and Lima & Valentine (2001) record it in the siphonophore Sulculeolaria quadrivalvis, although this may be an accidental inclusion. Simorhynchotus is widely distributed, with a preference for near-surface, tropical waters.
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 | 0,002 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,001 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,001 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,033 | 0,015 |
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 ».