#Based on Real Spiders (Forgot Some Names and could not find them)

Spider2 = Black Widow Spider
Spider3 = Cross Orb Weaver Spider 
Spider4 = Orb Weaver Spider
Spider5 = Mexican Redknee Tarantula
Spider6 = Great Horned Baboon Spider?
Spider7 = Shamrock Orb-Weaver
Spider8 = ?
Spider9 = Diving Bell Spider
Spider10 = Diving Bell Spider
Spider11 = Wolf Spider
Spider12 = Artic Wolf Spider
Spider14 = Brazilian Wandering Spider
Spider15 = Brazilian Wandering Spider
Spider16 = Brazilian Blue Dwarf Spider
Spider17 = Chilobrachys sp. electric blue
Spider18 = Chilobrachys sp. electric blue
Spider19 = False Widow
Spider20 = False Widow

CaveSpider4 = ?
CaveSpider6 = Cave Great Horned Baboon Spider?
CaveSpider5 = Cave Mexican Redknee Tarantula
CaveSpider11 = Cave Wolf Spider
CaveSpider12 = Cave Artic Wolf Spider
CaveSpider17 = Chilobrachys sp. electric blue
CaveSpider18 = Chilobrachys sp. electric blue

#Vanilla
Spider
CaveSpider

#Fun/Fantasy/Easter Egg
Spider13 = Heatscar Spider (Inspired by the Natura Mod)
CaveSpider13 = Cave Heatscar Spider