Pseudobatos buthi, the spadenose guitarfish, is a ray in the family Rhinobatidae.

All 82 museum specimens were collected in the 1940s and 1950s and sat hidden at UCLA's fish collection and the Natural History Museum of Los Angeles County until they were described by PhD student, Kelsi Rutledge.

[2] It likely is similar in ecology and behavior to its closest relative, Pseudobatos productus.

It is benthic and found in shallow water, spending most of its time on the seafloor in sandy, muddy, coastal regions.

This species garnered a lot of media attention due to the describer, Rutledge, who posted mock birth-announcement style photos with a preserved museum specimen,[3] including Forbes,[4] Spectrum1 News,[5] Smithsonian Magazine.