No. Because you're doing it through Forge ModLoader.
EntityRegistry.addSpawn(EntityBlinkDog.class, 8, 2, 4, EnumCreatureType.monster, BiomeGenBase.plains);
And for spawn eggs:
EntityList.addMapping(EntityBlinkDog.class, "Blink Dog", 4, 14342901, 8026845);
You'll have to look up what each of the ints do, the only ones I remember are the second two in the spawn egg (the big ones): they refer to the base and spot color on the egg icon.