Macrostylis G. O. Sars 1864

• Main Authors: Vey, Aidan, Brix, Saskia
• Format: Text
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Plantae; Tracheophyta; Magnoliopsida; Sapindales; Rutaceae; Macrostylis; Southern Ocean; Weddell Sea; Weddell
• Online Access: https://dx.doi.org/10.5281/zenodo.5334753; https://zenodo.org/record/5334753

Key to the Southern Ocean species of Macrostylis 1 Pleotelson rounded laterally.......................................................................................................................................... 4 - Pleotelson not rounded laterally................................................................................................................................... 2 2 Pleotelson laterally straight, with plumose setae................................................................................. M. hirsuticaudis - Pleotelson not laterally straight, without plumose setae............................................................................................... 3 3 Cephalon quadrate, pleotelson with lateral indentation............................................................................ M. bifurcatus - Cephalon triangular, pleotelson slightly produced.................................................................................... M. spiniceps 4 Pereonites 5–7 and pleotelson dorsally setulose.......................................................................................... M. setulosa - Pereonites 5–7 and pleotelson not dorsally setulose..................................................................................................... 5 5 Pereonite 7 and pleotelson with dorsal spine-like setae................................................................................... M. sarsi - Pereonite 7 and pleotelson without dorsal spine-like setae.......................................................................................... 6 6 Pereonites 1–7 subequal, 5–7 with postero-lateral spines.............................................................. M. cerritus sp. nov. - Anterior pereonites wider than posterior pereonites..................................................................................................... 7 7 Distinct postero-lateral spines on pereonites 4–7, cephalon anterior edge straight............................ M. vinogradovae - Small postero-lateral spines on pereonites 4–7, cephalon anterior edge slightly rounded.................... M. bipunctatus : Published as part of Vey, Aidan & Brix, Saskia, 2009, Macrostylis cerritus sp. nov., a new species of Macrostylidae (Isopoda: Asellota) from the Weddell Sea, Southern Ocean *, pp. 356-370 in Zootaxa 2096 (1) on page 367, DOI: 10.11646/zootaxa.2096.1.21, http://zenodo.org/record/5322601