Macrostylis G. O. Sars 1864

• Main Authors: Vey, Aidan, Brix, Saskia
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Plantae; Tracheophyta; Magnoliopsida; Sapindales; Rutaceae; Macrostylis; Southern Ocean; Weddell Sea
• Online Access: https://doi.org/10.5281/zenodo.5334754; http://treatment.plazi.org/id/03F787ECAD615C2BFF2A853458933A67

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