Paranarthrura subtilis Hansen 1913

• Main Author: Bird, Graham J
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Tanaidacea; Agathotanaidae; Paranarthrura; Paranarthrura subtilis; Davis Strait; Denmark Strait; Greenland; Iceland; Kolbeinsey; North East Atlantic
• Online Access: https://doi.org/10.5281/zenodo.6205829; http://treatment.plazi.org/id/5113BE7AB079894841C1C1FCDD43FC23

Paranarthrura subtilis Hansen, 1913 Hansen (1913): 124-125; plate XII fig 4a–d. Stephensen (1932): 351. Lang (1971b) 373–376; figs 6–7. Bird & Holdich (1989): 158; figs 1g, 9. Brandt (1993): 570. Guerrero-Kommritz et al (2002): 10. Guerrero-Kommritz (2003): 3. Larsen (2005): 121, 140. Identification reference . Hansen (1913), Lang (1971b), Bird & Holdich (1989). Distribution records from the AFEN, BIOFAR & BIOICE surveys. Recorded from 26 BIOICE samples, from the Denmark Strait, Greenland-Iceland Rise, Iceland Basin, Iceland Shelf (West), Irminger Basin, and Reykjanes Ridge, at depths 164–1099 m. No records from the AFEN and BIOFAR surveys. Distribution elsewhere. Davis Strait, 582 m (Hansen 1913); North Feni Ridge to the South Biscay Slope, 1160–1739 m (Bird & Holdich 1989); Kolbeinsey Ridge (north of Iceland), 940 m (Brandt 1993). Remarks. The record of a single specimen of P. subtilis from 940 m on the Kolbeinsey Ridge (north of Iceland) by Brandt (1993) is the sole example of the Agathotanaidae from this Polar-influenced region. Otherwise, the species has been recorded in the present study where benthic temperatures are in the range 2–5o C (mode 4o C). A considerable shallowing of the recorded upper bathymetric is evident, from 582 m to 164 m (on the West Icelandic Shelf). It is sometimes abundant in samples, with three stations where over one hundred specimens have been collected: 313 specimens in BIOICE Stn 2427 (Iceland Basin, 778 m), 114 specimens in BIOICE Stn 2415 (Iceland Basin, 819 m) and 109 specimens in BIOICE Stn 2873 (Irminger Basin, 555 m). Published as part of Bird, Graham J, 2010, Tanaidacea (Crustacea, Peracarida) of the North-east Atlantic: the Agathotanaidae of the AFEN, BIOFAR and BIOICE projects, with a description of a new species of Paragathotanais Lang, pp. 1-22 in Zootaxa 2730 on page 14, DOI: 10.5281/zenodo.200143