How to write the traditional Chinese characters of Luozi?

Luo traditional:

A white horse with a black mane

[Pinyin] [Lu]

[Interpretation] 1. White horse with black mane. 2.[~ camel] mammal, tall, with hump on the back and brown hair. You can carry loads and travel long distances in the desert. Also known as "camel"; "Camel" for short. 3. Last name.