M. japonica may refer to: Mahonia japonica, a medium-sized shrub species native to northeastern China Majewskia japonica, a fungus species Mauremys japonica, the Japanese pond turtle, a turtle species endemic to Japan Melibe japonica, a sea slug species Meloimorpha japonica, the suzumushi or bell cricket, an insect species Monocentris japonica, a pinecone fish species found in the tropical Indo-West Pacific oceans Morula japonica, a sea snail species Muscina japonica, a fly species in the genus Muscina Myrmarachne japonica, a jumping spider species in the genus Myrmarachne found in Russia, China, Korea, Taiwan and Japan Synonyms Melia japonica, a synonym for Melia azedarach, the Persian lilac, white cedar, chinaberry, bead tree, lunumidella, Ceylon cedar and malai vembu, a deciduous tree species native to India, southern China and Australia Meristotheca japonica, a synonym for Meristotheca papulosa, the jiguancai or tosaka-nori, a red alga species popular as a sea vegetable in Taiwan and in Japan Moroteuthis japonica, a synonym for Moroteuthis robusta, the robust clubhook squid, a squid species See also Japonica (disambiguation)