Amphiesma is a genus of colubrid snakes. They are all non-venomous. Amphiesma species occur in southern and eastern Asia, including Siberia, Korea, China, the Indian subcontinent, Indochina, Southeast Asia, Japan, and Indonesia. Other meanings "Amphiesma" can also refer to a complex cell covering in some Dinoflagellates, composed of flattened vesicles called alveoli that sometimes support overlapping cellulose plates to form a type of scaly armor called a theca. Source A Quick Guide to the Co… (More on Amphiesma)