mar·si·po·bran·chia \ˈ ̷ ̷ ̷ ̷ ̷ ̷ˈbraŋkēə\ ormar·si·po·bran·chi·a·ta\ˌ ̷ ̷ ̷ ̷ ̷ ̷ˌbraŋkēˈäd.ə, -ˈād.ə\; ormar·si·po·bran·chii\ˌ ̷ ̷ ̷ ̷ ̷ ̷ˈbraŋkēˌī\ Etymology: New Latin, from Greek marsipos, marsypos pouch + New Latin -branchia or Branchiata or -branchii (from Latin branchia gill) — more at marsupium, branchia synonym of cyclostomi or of agnatha