Ophiactis luetkeni Martanner-Turneretscher, 1887, Martanner-Turneretscher, 1887

Glück, Franziska U., Stöhr, Sabine, Bochert, Ralf & Zettler, Michael L., 2012, Brittle stars (Echinodermata: Ophiuroidea) from the continental shelf off Angola and Namibia, Zootaxa 3475, pp. 1-20: 8-10

publication ID

http://doi.org/ 10.5281/zenodo.282230

publication LSID

lsid:zoobank.org:pub:F27E50FA-E4E0-422A-9411-C5E35ADC51F9

DOI

http://doi.org/10.5281/zenodo.5697850

persistent identifier

http://treatment.plazi.org/id/03C38786-5462-1B32-FF0B-F99EA9FFFDDD

treatment provided by

Plazi

scientific name

Ophiactis luetkeni Martanner-Turneretscher, 1887
status

 

Ophiactis luetkeni Martanner-Turneretscher, 1887  

Fig. 3 View FIGURE 3. A, B E, F

West African records. Ophiactis luetkeni: Marktanner-Turneretscher 1887: 298   ; A. M. Clark 1955: 34; Cherbonnier 1957: 166; 1962: 15; Madsen 1970: 210. Ophiactis africana: Koehler 1911: 17   ; 1914: 182; Cadenat 1938: 359. Amphiura capensis   pars: Koehler 1914: 190 (the Senegal specimens).

Material examined. St. 87: dredge sampling, 7 ° 14.184´S, 12 ° 46.026´E; 1 specimen, 4 mm. St. 121: dredge sampling, 7 ° 51.948´S, 12 ° 58.452´E; 40 specimens, 1–5 mm. St. 66: dredge sampling, 9 ° 33.702´S, 13 °06.018´E; 2 specimens, 2–2.5 mm. St. BE 13: dredge sampling, 15 ° 17.562´S, 12 °00.030´E; 1 specimen, 3 mm. St. BE08: grab sampling, 17 °00.990´S, 11 ° 27.048´E; 2 specimens, 4.5–5 mm. St. BE 17: grab and dredge sampling, 17 ° 18.946´S, 11 ° 43.389´E; 14 specimens, 1.5–3 mm. St. BE 30: grab and dredge sampling, 17 ° 23.415´S, 11 ° 43.432´E; 219 specimens, 1–6 mm. St. BE 33: dredge sampling, 17 ° 23.416´S, 11 ° 42.226´E; 2 specimens, 1–2.5 mm. St. BE 39: dredge sampling, 17 ° 23.415´S, 11 ° 36.126´E; 1 specimen, 3 mm. St. BE03: grab and dredge sampling, 17 ° 57.636´S, 11 ° 46.104´E; 47 specimens, 1–4 mm. St. BE02: grab and dredge sampling, 18 ° 11.442´S, 11 ° 50.478´E; 20 specimens, 2–4 mm. St. BE01: grab and dredge sampling, 18 ° 23.118´S, 11 ° 55.290´E; 1169 specimens, 1–6 mm. Depth: 26 to 67 m. This species was the most common of all ophiuroid species collected. At the southernmost sampled station it showed extremely high abundances compared to other stations.

Diagnosis. The jaw bears a single unpaired and squarish apical papilla. The latter is separated from a single lateral oral papilla by a wide gap. The dorsal side of the disc is completely covered with fine scales, sometimes bearing a number of marginal spinelets near the arms, but most of the specimens wholly without disc spines.

Distribution. Northern West Africa: Dakar and southwards, southern West Africa: Porto Namibia (18 °S) and northwards (previously the southernmost boundary was Lobito, Angola). Ophiactis luetkeni   occurs from shore level down to 67 m (previously only down to 60 m on the West African shoreline), also down to 120 m off Cape Verde.