Macrostylis dorsaetosa Riehl, Wilson & Hessler, 2012, n. sp.

• Main Authors: Riehl, Torben, Wilson, George D. F., Hessler, Robert R.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Macrostylidae; Macrostylis; Macrostylis dorsaetosa; North Atlantic
• Online Access: https://doi.org/10.5281/zenodo.6176728; http://treatment.plazi.org/id/D602547EFFED5F0D12C7F9BCFC38FCC9

Macrostylis dorsaetosa n. sp. (Figs 1–7) Etymology. The species name 'dorsaetosa' is feminine and a shortened composition of three words: The first part is the prefix ‘dors-‘ derived from the Latin word 'dorsum'. The prefix is meant to provide position information regarding the second part, 'setae', owing to the presence of conspicuous setae dorsally on the posterior tergites. Finally, the greek suffix ‘-osis’ indicates the condition ‘dorsally setose’, which is the literal translation of the name. Type fixation. Holotype: adult female, 2.6 mm, AM P.86000, designated here. Type material examined. Holotype: non-ovigerous female, 2.6 mm, AM P.86000, used for the illustration of the habitus, WHOI 62. Paratypes: sub-adult male, 1.9 mm, AM P.86001, partly dissected for illustration of appendages, WHOI GH1; non-ovigerous female, 2.6 mm, AM P.86002, dissected for illustration of appendages and habitus, WHOI GH1; terminal male, 2.2 mm, AM P.86003, dissected for illustration of appendages, WHOI GH1; terminal male, 2.2 mm, AM P.86004, used for habitus illustration, WHOI 62; sub-adult male, 2.0 mm, AM P.86005, MI 633, gold-coated for SEM, WHOI 62; juvenile female, 1.9 mm, AM P.86006, MI 639, gold-coated for SEM, WHOI 62; 14 specimens, AM P.86021, male and female, WHOI 62; 4 specimens, AM P.86025, male and female, WHOI GH4. Type locality. Western North Atlantic off Long Island: 39°25.5'N; 70°35.0'W; 2500 m (WHOI GH #1); 39°28.8'N, 70°34.2'W; 2469 m (WHOI GH#4); 39°26'N; 70°33'W – 39°27.2'N; 70°33.2'W; 2496 m (WHOI 62). Type material — Remarks. Collected on North American slope off Long Island during cruise R/V Atlantis- 273, stations WHOI GH1 (27. Septemember 1961) and WHOI GH4 (30. October 1961) and R/V Atlantis II-12, station WHOI 62 (21 August 1964), about 3.4 km apart. Further records. WHOI G#1, 1 juvenile male (AM P86024); WHOI HH#3, 1 terminal male, AM P86026; WHOI 66, 1 non-ovigerous female, 1 manca, AM P98019; WHOI 128, 7 non-ovigerous females, AM P86007; WHOI 131, 12 specimen, male and female, AM P67257. ...