Corellidae

• Main Authors: Monniot, Françoise, Dettai, Agnès, Eleaume, Marc, Cruaud, Corinne, Ameziane, Nadia
• Format: Other/Unknown Material
• Language: unknown
• Published: 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Ascidiacea; Enterogona; Corellidae; Arctic; Antarctic; Herdman; Vazquez; Varela; Antarc*
• Online Access: https://zenodo.org/record/6187346; https://doi.org/10.5281/zenodo.6187346

Corellidae Corella eumyota Traustedt, 1882 (Figure 15) Traustedt, 1882: 17 pl. 4 figs 2, 3, pl. 5 figs 13, 14. Monniot et al. 2001: 63. Sanamyan & Sanamyan 2002: 36. Turon 1988: 280 figs 5, 6. Lambert 2004: 239 figs 1,2. Primo & Vazquez 2007: 1796. Varela et al. 2007: 1. Stations (events when several trawling operations per station): 16 A- 21-31 - 54 A- 59-65 (318)- 65 (322). The specimens measure between 2.5 and 7 cm long and have a thin transparent tunic. The oral siphon is terminal, the atrial aperture at 1 / 2 or 1 / 3 of the body length. The oral tentacles are long and numerous. The dorsal tubercle opens in a simple hole. The dorsal lamina is made of long languets. The branchial tissue with spiral stigmata extends beyond the digestive tract and presents complete longitudinal vessels (Fig. 15 B). The body wall is extremely thin with weak siphonal sphincters and the body musculature limited to the left side, in irregularly crossed fibres (Fig. 15 A). The gut lies on the right side in horizontal position (Fig. 15 A). The anus has numerous lobes. The testis lobes cover the external side of the stomach; the ovary occupies the lumen of the gut loop. One sequence for specimen P 4 COR.A 56 (BOLD: ASCAN 026- 10). This sequence diverges by more than 10 % from the other sequences deposited with the same identification in BOLD. These other sequences are mined from GenBank, and come from specimens from North-Western Europe. The closest sequence is not from the same species or genus, it is actually ASCAN 028 (Corynascidia suhmi) with 93.75 % similarity. The species distribution is particularly large in both hemispheres, Antarctic and Arctic Oceans, from shallow depths to 1300 m (Sanamyan & Sanamyan 2002), but also Chile, Southern Africa and European coastal waters from Spain to England (Lambert 2004; Varela et al. 2007; Nagar et al. 2010; Collin et al. 20110). This uncommon distribution, and the wide molecular divergence, need to be confirmed with further molecular studies. Corynascidia suhmi Herdman, 1882 ...