• Psychromonas agarivorans Hosoya, Jang, Yasumoto-Hirose, Matsuda & Kasai, 2009
• Psychromonas antarctica corrig. Mountfort et al., 1998
• Psychromonas aquimarina Miyazaki, Nogi, Fujiwara & Horikoshi, 2008
• Psychromonas arctica Groudieva, Grote & Antranikian, 2003
• Psychromonas boydii Auman, Breezee, Gosink, Schumann, Barnes, Kampfer & Staley, 2009
• Psychromonas hadalis Nogi, Hosoya, Kato & Horikoshi
• Psychromonas heitensis Hosoya, Yasumoto-Hirose, Adachi, Katsuta & Kasai, 2008
• Psychromonas ingrahamii Auman, Breezee, Gosink, Kampfer & Staley, 2006
• Psychromonas japonica Miyazaki, Nogi, Fujiwara & Horikoshi, 2008
• Psychromonas kaikoae Nogi, Kato & Horikoshi, 2002
• Psychromonas macrocephali Miyazaki, Nogi, Fujiwara & Horikoshi, 2008
• Psychromonas marina Kawasaki, Nogi, Hishinuma, Nodasaka, Matsuyama & Yumoto, 2002
• Psychromonas ossibalaenae Miyazaki, Nogi, Fujiwara & Horikoshi, 2008
• Psychromonas profunda Xu, Nogi, Kato, Liang, Rüger, De Kegel & Glansdorff, 2003