S. intermedia

S. intermedia may refer to:
 * Siren intermedia, the lesser siren, an aquatic salamander species native to the eastern United States and northern Mexico
 * Sorbus intermedia, the Swedish whitebeam, a tree species found in southern Sweden
 * Splendrillia intermedia, a sea snail species
 * Sporophila intermedia, the grey seedeater, a bird species found in Brazil, Colombia, Guyana, Trinidad and Tobago and Venezuela
 * Stanhopea intermedia, an orchid species endemic to southwestern Mexico
 * Stigmella intermedia, a moth species found in Ohio, Arkansas, Kentucky and Ontario
 * Strauzia intermedia, a fruit fly species

Synonyms

 * Scalaria intermedia, a synonym for Cirsotrema zelebori, a sea snail species
 * Sclerotinia intermedia, a synonym for Sclerotinia minor, a plant pathogen species