Obelia irregularis , Fraser 1943
Bibliographic record
Abstract
Obelia irregularis Fraser, 1943a Obelia irregularis Fraser, 1943a: 77, pl. 16, fig. 3. Holotype. MCZ-IZ 9013: St Kitts and Nevis, off St Kitts, 17°19’27”N, 62°50’30”W, USCSS Blake, 250 fm (457 m), 14 January 1879, two fragments of a colony, ca. 3 cm high, in poor condition, coll. A. Agassiz, labelled “type”; 70% ethanol. Type locality. St. Kitts and Nevis: off St Kitts, 17°19’27”N, 62°50’30”W, 250 fm (457 m) (Fraser 1943a). Current status. Valid. Remarks. Obelia irregularis was described by Fraser (1943a) in a collection sent on loan to him from the MCZ. As with other species in that collection, no name-bearing types were designated for it. The species is not represented in the Fraser Hydroid Collection at the RBCM, and the only known type material of O. irregularis is that returned by Fraser to the MCZ (MCZ-IZ 9013). The count number (“1”) accompanying the type (MCZ–IZ 9013), and Fraser’s (1943a) description (“Colony 3 cm. in height…”), indicate that the species was described from a single hydroid. Although two fragments were found in the type collection examined at the MCZ, they are considered parts of the same colony. The specimen is therefore taken to be the holotype by monotypy (ICZN Art. 73.1.2). Another hydroid recorded as O. irregularis at the MCZ (MCZ-CNID 77), from Grand Manan, New Brunswick, Canada, is not part of the type series. That identification is dubious given the much different environmental conditions of the collection locality. In his account of O. irregularis, Fraser (1943a) observed and briefly described hydrothecae and gonothecae. The holotype examined here is now in poor condition, and neither of these structures could be distinguished with certainty. Obelia irregularis is listed as a valid species in WoRMS, a conclusion that seems justified at present given the location, depth, and distinctive morphology of the hydroid as described by Fraser (1943a). In particular, the hydrothecal rim was said to have “…10 regularly rounded teeth [cusps], the division between them extending deep into the hydrothecal wall.” Hydrothecal pedicels are wavy but not noticeably annulated. While gonothecae were described by Fraser, the character of the gonophores remains unknown. Uncertainty therefore exists about the generic assignment of the species.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.002 |
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".