S. nigricauda may refer to: Sipia nigricauda, the stub-tailed antbird, a bird species Spicara nigricauda, Norman, 1931, the blacktail picarel, a fish species in the genus Spicara and the family Centracanthidae Stenaelurillus nigricauda, a jumping spider species in the genus Stenaelurillus
See also Nigricauda (disambiguation)