Macrostylis G. O. Sars 1864

(SOSA), Senckenberg Ocean Species Alliance, Brandt, Angelika, Chen, Chong, Engel, Laura, Esquete, Patricia, Horton, Tammy, Jażdżewska, Anna M., Johannsen, Nele, Kaiser, Stefanie, Kihara, Terue C., Knauber, Henry, Kniesz, Katharina, Landschoff, Jannes, Lörz, Anne-Nina, Machado, Fabrizio M., Martínez-Muñoz, Carlos A., Riehl, Torben, Serpell-Stevens, Amanda, Sigwart, Julia D., Tandberg, Anne Helene S., Tato, Ramiro, Tsuda, Miwako, Vončina, Katarzyna, Watanabe, Hiromi K., Wenz, Christian & Williams, Jason D., 2024, Ocean Species Discoveries 1 – 12 — A primer for accelerating marine invertebrate taxonomy, Biodiversity Data Journal 12, pp. e 128431-e 128431 : e128431-

Macrostylis G. O. Sars 1864

Type species: Macrostylis spinifera G. O. Sars, 1864

Composition: Ninety species, of which 87 are valid species, two are nomina dubia and Macrostylis papandreas Johannsen, Brandt & Riehl , sp. nov. is described here.

Macrostylis abyssalis Brandt, 2004 , Macrostylis abyssicola Hansen, 1916 , Macrostylis affinis Birstein, 1963 , Macrostylis amaliae Bober, Riehl, Henne & Brandt, 2017 , Macrostylis amplinexa Mezhov, 1989 , Macrostylis angolensis Brandt, 2004 , Macrostylis angulata Mezhov, 1999 , Macrostylis antennamagna Riehl & Brandt, 2010 , Macrostylis belyaevi Mezhov, 1989 , Macrostylis bifurcatus Menzies, 1962 , Macrostylis bipunctatus Menzies, 1962 , Macrostylis birsteini Mezhov, 1993 , Macrostylis capito Mezhov, 1989 , Macrostylis caribbicus Menzies, 1962 , Macrostylis carinifera Mezhov, 1988 , Macrostylis cerritus Vey & Brix, 2009 , Macrostylis compactus Birstein, 1963 , Macrostylis confinis Mezhov, 2003 , Macrostylis curticornis Birstein, 1963 , Macrostylis daniae Bober, Riehl, Henne & Brandt, 2017 , Macrostylis dellacrocei Aydogan, Wägele & Park, 2000 , Macrostylis diatona Mezhov, 2003 , Macrostylis dorsaetosa Riehl, Wilson & Hessler, 2012 , Macrostylis elongata Hansen, 1916 , Macrostylis emarginata Mezhov, 2000 , Macrostylis expolita Mezhov, 2004 , Macrostylis foveata Mezhov, 2000 , Macrostylis fragosa Mezhov, 2003 , Macrostylis galatheae Wolff, 1956 , Macrostylis gerdesi (Brandt, 2002) , Macrostylis gestuosa Mezhov, 1993 , Macrostylis grandis Birstein, 1970 , Macrostylis hadalis Wolff, 1956 , Macrostylis hirsuticaudis Menzies, 1962 , Macrostylis lacunosa Mezhov, 2004 , Macrostylis latifrons Beddard, 1886 , Macrostylis latiuscula Mezhov, 2004 , Macrostylis longifera Menzies & George, 1972 , Macrostylis longipedis Brandt, 2004 , Macrostylis longipes Hansen, 1916 , Macrostylis longiremis (Meinert, 1890) , Macrostylis longispinis Brandt, 2004 , Macrostylis longissima Mezhov, 1981 , Macrostylis longiuscula Mezhov, 1981 , Macrostylis longula Birstein, 1970 , Macrostylis magnifica Wolff, 1962 , Macrostylis mariana Mezhov, 1993 , Macrostylis marionae Kniesz, 2018 , Macrostylis matildae Riehl & Brandt, 2013 , Macrostylis medioxima Mezhov, 2003 , Macrostylis metallicola Riehl & De Smet, 2020 , Macrostylis meteorae Brandt, 2004 , Macrostylis minuscularia Mezhov, 2003 , Macrostylis minutus Menzies, 1962 , Macrostylis papillata Riehl, Wilson & Hessler, 2012 , Macrostylis pectorosa Mezhov, 2003 , Macrostylis polaris Malyutina & Kussakin, 1996 , Macrostylis porrecta Mezhov, 1988 , Macrostylis profundissima Birstein, 1970 , Macrostylis prolixa Mezhov, 2003 , Macrostylis pumicosa Mezhov, 2003 , Macrostylis quadratura Birstein, 1970 , Macrostylis rectangulata Mezhov, 1989 , Macrostylis reticulata Birstein, 1963 , Macrostylis roaldi Riehl & Kaiser, 2012 , Macrostylis robusta Brandt, 2004 , Macrostylis sabinae Bober, Riehl, Henne & Brandt, 2017 , Macrostylis scotti Riehl & Brandt, 2013 , Macrostylis sensitiva Birstein, 1970 , Macrostylis setifer Menzies, 1962 , Macrostylis setulosa Mezhov, 1992 , Macrostylis spiniceps Barnard, 1920 , Macrostylis spinifera G. O. Sars, 1864 , Macrostylis squalida Mezhov, 2000 , Macrostylis strigosa Mezhov, 1999 , Macrostylis subinermis Hansen, 1916 , Macrostylis truncatex Menzies, 1962 , Macrostylis tumulosa Mezhov, 1989 , Macrostylis uniformis Riehl & Brandt, 2010 , Macrostylis urceolata Mezhov, 1989 , Macrostylis vemae Menzies, 1962 , Macrostylis vigorata Mezhov, 1999 , Macrostylis vinogradovae Mezhov, 1992 , Macrostylis viriosa Mezhov, 1999 , Macrostylis vitjazi Birstein, 1963 , Macrostylis wolffi Mezhov, 1988 , Macrostylis zenkevitchi Birstein, 1963 and Macrostylis papandreas Johannsen, Brandt & Riehl , sp. nov.

Diagnosis

Pereonal tagmosis 3: 1: 3 with Prn 1 – Prn 3 forming a highly integrated fossosoma with various degrees of expression of segment borders, Prn 4 standing out from all other segments with a pronounced anterior collum region and Prn 5 – Prn 7 the flexibly articulated posterior tagma. Ceph prognathous. Oostegites only on Prn 3 and 4. Ventral spines may be present to various degrees on Prn 1 – Prn 7, never on Ceph or Plt. Plt with paired statocyst, Plp cavity posteriorly open, anus located inside caudal extension of Plp cavity. A 1 articulation position anterodorsally, basal article orientation anterodorsally, flagellum aesthetasc number in adult male per article two to many, hypertrophy in adult males. A 2 axis straight, article 1 (precoxa) and article 3 (basis) scale absent, article 6 length exceeding combined length of articles. Md without palp, with lateral seta approximately at location of palp articulation, right lacinia mobilis differentiated from spine row. P 1–3 coxae disc-like. P 2–3 ‘ fossorial’ with an elongate ischium, merus and carpus, all with broadened margins and dorsal and ventral rows of robust setae, propodus slender and paucisetose. P 3–4 orientated somewhat dorsally and often held in a lateral position. P 3 ischium with dorsal lobe and prominent dorsal setation, with carpo-propodal joint rotation. P 4 short. Male Plp 1 medial and lateral lobes lateral to each other. Female PlpII distal pappose, long. Urp long, cylindrical or conical, endopod relatively long, exopod absent. After Riehl et al. (2014 a).