Thelyssina
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publication ID |
https://doi.org/ 10.11646/zootaxa.3755.2.1 |
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publication LSID |
lsid:zoobank.org:pub:1872ECAB-3C5C-4D76-93A0-A8626F75B96E |
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DOI |
https://doi.org/10.5281/zenodo.5671275 |
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persistent identifier |
https://treatment.plazi.org/id/490087B3-FFB0-6D2D-FF1F-FAC85B03F8BC |
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treatment provided by |
Plazi |
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scientific name |
Thelyssina |
| status |
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Thelyssina ? spec. 2
( Figures 23–25 View FIGURES 18 – 25 )
Material. AndaDeVos (10).
Characterization. Shell minute, H 0.8 mm, W 0.7 mm, trochiform, turreted; DN 0.11 mm; P/T boundary thin varix at 1.1 whorls; second varix at 1.6 whorls; T whorls shouldered, with axial lirae and minute pits; body whorl with rounded shoulder and low spiral rib; aperture subquadrate; very thin nacre observed at the damaged outer lip of one specimen; umbilicus narrow, with spiral rib inside.
Remarks. This seguenzioid skeneimorph species is also provisionally placed in Thelyssina , based on the presence of minute pits, a well defined angular shoulder, a basal spiral rib, an umbilical spiral rib and a small protoconch with anastomosing sculpture and a shape similar to the protoconch of the type species for the genus. However, this assignment is open to further scrutiny as Thelyssina ? spec. 2 is relatively tall and lacks dendritic sculpture.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.