ahlstromi, Nansenia Kawaguchi [K.] & Butler [J. L.] 1984:4, Fig. 2 [Contributions in Science (Los Angeles) No. 352; ref. 17434] off Baja California, Mexico, 29°15'N, 126°07'W, depth 0-754 meters. Holotype: SIO 57-87 (slightly damaged). Paratypes: LACM 43546-1 (1); SIO 63-425 (1); SWFC 7210-24.139 (1, decomposed). •Valid as Nansenia ahlstromi Kawaguchi & Butler 1984 -- (Love et al. 2005:28 [ref. 37547], Mundy 2005:157 [ref. 28379], Poulsen 2015:529 [ref. 33965], Page et al. 2023:81 [ref. 40505]). Current status: Valid as Nansenia ahlstromi Kawaguchi & Butler 1984. Microstomatidae. Distribution: Eastern Pacific: off Pacific coast of Baja California (Mexico). Habitat: marine.