共找到 4 筆符合的資料
and crista inferior well-developed, both absent at posterior end. Neck ventrally constricted.....more
. Colliculum low. Crista superior and crista inferior well-developed, both absent at posterior end. Neck.....more
. Colliculum low. Crista superior and crista inferior well-developed, both absent at posterior end.....more
inferior well-developed, both absent at posterior end. Neck slightly constricted. Rostrum extended.....more