M. spinosa

M. spinosa may refer to:
 * Mahura spinosa, a funnel-web spider species in the genus Mahura
 * Malikia spinosa, a Gram-negative soil bacterium species
 * Manjala spinosa, a tangled nest spider species in the genus Manjala
 * Masteria spinosa, a mygalomorph spider species in the genus Masteria
 * Mazax spinosa, a corinnid sac spider species in the genus Mazax
 * Moricandia spinosa, a plant species in the genus Moricandia
 * Morula spinosa, a mollusc species