Recessus phrenicomediastinalis

例句：

1. 1.The recessus phrenicomediastinalis is a rare and endangered species.
   这个物种是稀有且濒危的。
2. 2. The discovery of this species has sparked interest in the natural history of the region.
   这一物种的发现引发了对该地区自然历史的关注。
3. 3. Conservation efforts are being made to protect this species from extinction.
   正在采取措施保护这一物种，防止其灭绝。