A subspecies of the genus Happy Monkey.

The langur rejoiced in Sloanea Assamica (Benth. )Rehd。 &; E. H. Wils langur is happy Sloanea changii Coode Baise monkey is happy Sloanea Chinganahu Baise monkey is happy (original variety) Sloanea Chingana Huvar. The whole langur rejoices (species). integra folia(Chun & amp； F. C. How) H. T. Chang langur rejoices Sloanea Cordifolia Fengex H.T. Chang membrane langur rejoices Sloanea dasycarpa (Benth. )Hemsl。 Hainan monkeys like Hainan monkeys; Spring imitates chestnut trees. &; Achene monkey rejoices fine fruit monkey. Yunnan-Vietnam monkeys rejoice. Round langur rejoices round langur rejoices Chinese round langur. The apple monkey rejoices in the phoenix tree (Benth. )Rehd。 &; E. H. Wells' hairy monkey rejoices in Populus tomentosa. )Rehd。 &; Wells.