• Megastygarctides christinae Guldberg & Kristensen, 2006
• Megastygarctides gerdae Guldberg & Kristensen, 2006
• Megastygarctides isounguis Renaud-Mornant, 1981
• Megastygarctides orbicularis McKirdy, Schmidt & McGinty-Bayly, 1976
• Megastygarctides orbiculatus Mckirdy et al., 1976
• Megastygarctides seteloso Morgan & O'Reilly, 1989
• Megastygarctides setuloso Morgan & O'Reilly, 1988
• Mesostygarctus intermedius Mckirdy et al., 1976
• Mesostygarctus intermedius Renaud-Mornant, 1979
• Parastygarctus biungulatus Morone de Lucia, Grimaldi de Zio & d'Addabbo Gallo, 1984
• Parastygarctus higginsi Renaud-Debyser, 1965
• Parastygarctus mediterranicus Gallo D'Addabbo, Grimaldi de Zio & Sandulli, 2001
• Parastygarctus renaudae de Zio Grimaldi, d'Addabbo Gallo, Morone de Lucia & Daddabbo, 1988
• Parastygarctus sterreri Renaud-Mornant, 1970
• Pseudostygarctus apuliae Gallo-D'Addabbo, de Zio & D'Addabbo, 2000
• Pseudostygarctus intermedius (Renaud-Mornant, 1979)
• Pseudostygarctus mirabilis de Zio Grimaldi, D'Addabbo Gallo & Morone de Lucia, 1998
• Pseudostygarctus rugosus Gallo D'Addabbo, de Zio Grimaldi & Sandulli, 2001
• Pseudostygarctus triangulatus Mckirdy et al., 1976
• Pseudostygarctus triungulatus McKirdy, Schmidt & McGinty-Bayly, 1976
• Stygarctus abornatus McKirdy, Schmidt & McGinty-Bayly, 1976
• Stygarctus bradypus Schulz, 1951
• Stygarctus gourbaultae Renaud-Mornant, 1981
• Stygarctus granulatus Pollock, 1970
• Stygarctus lambertii de Zio Grimaldi, d'Addabbo Gallo, Morone de Lucia & Daddabbo, 1988
• Stygarctus spinifer Hiruta, 1985