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

• Main Authors: Riehl, Torben, Wilson, George D. F., Hessler, Robert R.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Macrostylidae; Macrostylis; Macrostylis papillata; Long Island; North Atlantic
• Online Access: https://zenodo.org/record/6176730; https://doi.org/10.5281/zenodo.6176730

Macrostylis papillata n. sp. Etymology. The name 'papillata' is derived from the Latin word ‘papilla’, meaning 'wart' because this species is characterized by warty posterior margins of the cephalothorax' and the anterior four pereonites' tergites. Type fixation. Holotype: ovigerous female, 1.5 mm, AM P. 86009, designated here. Type material examined. Holotype: ovigerous female, 1.5 mm, AM P. 86009, used for habitus illustrations, WHOI 121. Paratypes: juvenile female, 1.3 mm, AM P 86008, partly used for illustration of habitus and antennae, WHOI 121; non-ovigerous female, 1.5 mm, AM P 86010, used for habitus illustrations and dissected for illustration of appendages, WHOI 121; terminal male, 1.3 mm, AM P 86011, used for habitus illustrations and dissected for illustration of appendages, WHOI 121; ovigerous female, 1.5 mm, AM P 86013, MI 638, gold-coated for SEM, WHOI 121; terminal male, AM P 86014, MI 635 –MI 637, dissected and gold-coated for SEM, WHOI 121; immature male, 1.3 mm, AM P 86015, partly used for illustration of habitus and antennae, WHOI 121. Type locality. Western North Atlantic abyssal plain between Long Island and Bermuda: 35 °50.0'N; 65 °11.0'W; 4800 m (WHOI 121), 35 °51.0'N; 64 ° 58.2 'W; 4833 m (WHOI 122). Type material – Remarks. Collected during cruise R/V Atlantis II- 24 (21 August 1966). Further records. 1 terminal male, AM P. 86016, WHOI LL 1; 4 specimen, female and male, AM P. 67254, WHOI 58; 1 terminal male, AM P. 83030, WHOI 83; 1 non-ovigerous female, AM P. 86028, WHOI 85; 8 specimen, female and male, AM P. 86029, WHOI 95; 2 ovigerous female, AM P. 86055, WHOI 120; 1 terminal male, AM P. 86012, WHOI 125; terminal male, 1.3 mm, AM P. 86012, MI 630, gold-coated for SEM, WHOI 125. Description, female Body (Figs 8 A–D, 15 A–E). Length 1.5 mm, 4.5 width, subcylindrical, without setation. Ventral spines. Pereonite 1 spine acute, prominent. Pereonite 3 spine blunt, small, closer to anterior segment border. Pereonite 4 spine directed posteriorly, acute, small, closer to posterior segment ...