Molgula bouvetensis Michaelsen 1904 ...

• Main Authors: Monniot, Françoise, Dettai, Agnès
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Ascidiacea; Pleurogona; Molgulidae; Molgula; Molgula bouvetensis; Antarctic; Bouvet; Bouvet Island; Françoise; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.6097440; https://zenodo.org/doi/10.5281/zenodo.6097440

Molgula bouvetensis (Michaelsen, 1904) Bouvet Island, BIOMASS survey MD 24. 18/08/1980, 54°22’ S – 03° 15’ E, 150–218 m; 19/08/1980, 54°21’ S – 03°24’ E, 192–218 m; 20/08/1980, 54°28’ S – 03°21’ E, 195–203 m; 20/08/1980, 54°27’ S – 03°23’ E, 150–165 m; 21/08/1980, 54°25’S – 03°09’ E, 219– 305m. Numerous specimens of very similar shape were collected by trawl. They are not very well fixed but in good enough condition to be compared with the 3 other groups of Antarctic Molgula with peduncle. Their general anatomy can hardly isolate them at first sight, only small differences can be pointed out but they may be sufficient to isolate and support the distinct species inhabiting a distant region. The description of Michaelsen (1904) is very detailed and corresponds to our observations. The specimens have an ovoid body 4 to 8 cm high, narrowing in a soft peduncle of variable size but not exceeding the body length. The peduncle ends in a tuft of filaments (Fig. 15 B). The atrial siphon is apical, the oral siphon at ... : Published as part of Monniot, Françoise & Dettai, Agnès, 2015, Pedunculate Molgula species (Ascidiidae, Molgulidae) from the French Antarctic sector. Redescription and taxonomic revision, pp. 171-197 in Zootaxa 3920 (1) on page 189, DOI: 10.11646/zootaxa.3920.1.9, http://zenodo.org/record/241018 ...