What is "pilumnoides"

Pilumnoides is a genus of crabs in its own monotypic family, Pilumnoididae. It contains the following species:

• Pilumnoides coelhoi Guinot & Macpherson, 1987 – Abrolhos Archipelago
• Pilumnoides hassleri A. Milne-Edwards, 1880 – Atlantic coast of South America
• Pilumnoides inglei Guinot & Macpherson, 1987 – south coast of England
• Pilumnoides monodi Guinot & Macpherson, 1987 – Gabon
• Pilumnoides nudifrons (Stimpson, 1871) – Caribbean Sea
• Pilumnoides perlatus (Poeppig, 1836) – Pacific coast of South America
• Pilumnoides rotundus Garth, 1940 – Pacific coast of the Neotropics
• Pilumnoides rubus Guinot & Macpherson, 1987 – south-western Africa