Tjalfiella Mortensen 1910 ...
Genus Tjalfiella Mortensen, 1910 Grammatical gender— feminine Type species— TJalfiella tristoma from Mortensen (1910): 249–253, plates. 1–10 Etymology— From the Danish Tjalfe, on which Mortensen based the name. This originated from the earlier Tjalfe expedition to Greenland on the vessel Tjalfe. “Tj...
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Zenodo
2024
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| Online Access: | https://dx.doi.org/10.5281/zenodo.13238741 https://zenodo.org/doi/10.5281/zenodo.13238741 |
| Summary: | Genus Tjalfiella Mortensen, 1910 Grammatical gender— feminine Type species— TJalfiella tristoma from Mortensen (1910): 249–253, plates. 1–10 Etymology— From the Danish Tjalfe, on which Mortensen based the name. This originated from the earlier Tjalfe expedition to Greenland on the vessel Tjalfe. “Tjalfe is a renowned figure in Northern Mythology (the companion of the good Thor on his journey to Utgård)” (Mortensen 1912: 2). Included species (1)— TJalfiella tristoma Mortensen, 1910 Description— Tjalfiellidae compressed in the stomodeal axis and “U” shaped; with two large aboral arms that lack oral grooves, chimney-like with flat tops, and extend perpendicularly from the main axis of the body; two tentacles (one sheathed in each respective aboral arm) that lack tentilla; statocyst sunken into a deep cavity in the center of the aboral face of the animal; hermaphroditic gonads developing into four pairs of external globular pockets centered around the statocyst on the aboral face; genital brood cavities may ... : Published as part of Bezio, Nicholas & Collins, Allen G., 2024, Redescription of the deep-sea benthic ctenophore genus Tjalfiella from the North Atlantic (Class Tentaculata, Order Platyctenida, Family Tjalfiellidae), pp. 241-266 in Zootaxa 5486 (2) on page 252, DOI: 10.11646/zootaxa.5486.2.4, http://zenodo.org/record/13209847 ... |
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