Oswaldella tottoni Pena Cantero and Vervoort 1996
Oswaldella tottoni Peña Cantero and Vervoort, 1996 Oswaldella tottoni Peña Cantero and Vervoort, 1996: 139–142, figure 2; Peña Cantero et al., 1997: 380–383, figure 12; Peña Cantero and García Carrascosa, 1998: 179; 1999: 214; Peña Cantero and Vervoort, 1998: 37; Peña Cantero and Marques, 1999: 85....
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2004
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| Subjects: | |
| Online Access: | https://zenodo.org/record/4654035 https://doi.org/10.5281/zenodo.4654035 |
| Summary: | Oswaldella tottoni Peña Cantero and Vervoort, 1996 Oswaldella tottoni Peña Cantero and Vervoort, 1996: 139–142, figure 2; Peña Cantero et al., 1997: 380–383, figure 12; Peña Cantero and García Carrascosa, 1998: 179; 1999: 214; Peña Cantero and Vervoort, 1998: 37; Peña Cantero and Marques, 1999: 85. Oswaldella bifurca: Totton, 1930: 208–209, figure 50. Remarks. Oswaldella tottoni is well characterized by the shape of the hydrotheca, which is low and situated on the distal half of the hydrocladial internodes, the presence of two axillary nematophores on the cauline apophyses, and the presence of only secondary hydrocladia (cf. table 1). Ecology and distribution. Oswaldella tottoni is a shelf species (Peña Cantero et al., 1997), having been found at depths from 256 (Peña Cantero and Vervoort, 1996) to 400 m (Peña Cantero et al., 1997) on muddy bottoms. Oswaldella tottoni seems to have a circum-Antarctic distribution. It is known from McMurdo Sound, Ross Sea (Peña Cantero and Vervoort, 1996), in East Antarctica, and from the east coast of the Weddell Sea (Peña Cantero et al., 1997), in West Antarctica. Oswaldella vervoorti Peña Cantero and García Carrascosa, 1998 (figure 16) Oswaldella vervoorti Peña Cantero and García Carrascosa, 1998: 175–179, figure 1; 1999: 214.? Oswaldella spec. 2 Peña Cantero and Vervoort, 1995: 336–339, figure 3; Peña Cantero and Marques, 1999: 85. Material examined. 6/415, one stem ca 11 mm high (USNM 1003373); 6/445, four stem fragments up to 33 mm long (USNM 1003374); 691/002-B, numerous fragments and stems up to 20 mm high (USNM 1003375; RMNH-Coel. 30231; MNCN 2.03 / 246); 691/023, two stem fragments up to 25 mm high, with one immature gonotheca (USNM 1003376); 691/24, five stem fragments up to 45 mm long (USNM 1003377); 7/484, two stem fragments up to 35 mm long (USNM 1003378); 721/1062, one stem ca 46 mm high (USNM 1003379); 721/1063, three stems up to 28 mm high (USNM 1003380; RMNH-Coel. 30232); 721/704, four stems up to 30 mm high (USNM 1003381; RMNH-Coel. 30233); 721/816, one stem ca ... |
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