“种”相对于“种类”来说更加口语，比如我们说： 桌上有很多种水果。 (更加常用) 但是用“种类”来说，就是： 用上有很多种类的水果。 我们一般在具体说明(写说明文)事物时用“种类”： 唐诗主要分为四言绝句、五言绝句和七言绝句三个种类。 然而“类型”则更加强调于事物的共同点。 最后一个“型”表达的是物品所具有的某种样式，比如“发型”、“O型血” —————————————————————————————————— 对不起我说的有些乱，不过希望能帮到您 : )

Well,种,it might be means kinds,types,species,or different taste,种 is a extensive word to tell difference 种类,it's more restricted anyway,it must be used in some items with clearly difference like football and tennis,you could tell they are different sports simply. 类型，a description of some items under a bigger frame,just like 你想要什么类型的书？——Which kind of books do you want?Firstly they must be books anyway. 型is similar to 类型,but closer to a specific object,however in daily life ,Chinese can use those words if they are too similar to each other,and nobody will blame on you.Hope you can try