Masked Crab Spider 
Mastigoproctus giganteus 
Mastophora phrynosoma 
Meadow Wolf Spider 
Mediterranean White-banded Spider 
Mediumwing Kitespider 
Melbourne trapdoor spider 
Menemerus nigli 
Menemerus taeniatus 
Meotipa impatiens 
Meotipa picturata 
Meotipa spiniventris 
Meotipa thalerorum 
Mesobuthus eupeus 
Mesobuthus gibbosus 
Meta ovalis 
Metacyrba floridana 
Metacyrba taeniola 
Metallic jumper 
Metaphalangium cirtanum 
Metaphidippus albopilosus 
Metaphidippus chera 
Metellina merianae 
Meterginus serratus