Dasystenella acanthina (Wright & Studer 1889) Wright & Studer 1889
- Dataset
- New records of octocorals (Cnidaria, Anthozoa) from the south western Atlantic Ocean, with zoogeographic considerations
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Cnidaria
- class
- Anthozoa
- order
- Alcyonacea
- family
- Primnoidae
- genus
- Dasystenella
- species
- Dasystenella acanthina
description
Description. Bottlebrush colony, 14 cm in height, short branches coming off the main stem. Polyps appear in whorls of 4 – 5 polyps. Whorls are uniformly separated along the stem, 4 – 5 whorls per cm. Polyps 2.10 – 2.25 mm in height. Two abaxial longitudinal rows with 5 – 6 scales. Marginal scales with long spines (0.52 – 0.55 mm wide and 1.1 – 1.2 mm long, spine 0.65 mm long); submarginal scales triangulate (0.32 – 0.33 mm wide and 0.57 – 0.59 mm long) and body scales semi – circular (0.51 – 0.53 mm wide and 0.35 – 0.38 mm long). Coenenchyme scales rounded with basal big warts (0.30 – 0.32 mm in diameter).
diagnosis
Diagnosis. See Wright & Studer 1889: 59, pl. 14, fig. 3, pl. 20, fig. 10.
distribution
Distribution (Fig. 1). Estuary of Rio de la Plata (Argentina) (37 ° 17 ’ S, 52 ° 20 ’ W, 183 m) (Wright & Studer 1889); Terra Nova Bay, Antarctica (300 m) (Gavagnin et al. 2003). New records: Argentine Basin between the Patagonian coast and the Falkland Islands.
materials_examined
Material examined. Argentinian continental slope, 50 ° 32 ' S, 63 ° 03 ' W, November 1976, 150 m, Vessel “ Orient Maru ”, collector R. C. Menni, (MACN 2139). C. Dasystenella acanthina (Wright & Studer, 1889), alcohol sample, MACN 2139.