Two new species, Cumella bruinensis and Lamprops augustinensis, are described on the basis of specimens collected in southern Cook Inlet and Resurrection Bay, Alaska. The new species Cumella bruinensis can be distinguished from all other species of Cumella by the combination of a sharp dorsal carina on the carapace, carapace compressed laterally, carapace surface with small tumidities, having a dorsal-lateral depression on either side of the dorsal carina, and short stout uropods. The new species Lamprops augustinensis can be distinguished from all other species of Lamprops by the combination of 4 oblique entire ridges on the carapace, pseudorostral lobes extending anteriorly past the eye lobe, male with the flagellum of antenna 2 extending to the posterior border of pleonite 2, adult male half the length of the ovigerous female.