Cold-water corals (CWC) are known to be deep-sea biodiversity hotspots, yet there is still a huge knowledge gap regarding their associated fauna. As so, CWC ecosystems pose as a perfect environment for the discovery of new species. In this context two new species of Hamigera (Demospongiae) have been recorded associated with CWC in antipodal parts of the world: Hamigera bibiloniae sp. nov. from the Blanes Canyon (north-western Mediterranean Sea) and Hamigera kellyae sp. nov. from the Clementsville Seamount (Macquire Ridge, New Zealand). Both species represent the first deep-sea records of the previously shallow-water restricted Hamigera, and mostly differ from other species in their huge spicule size, mostly doubling that of shallow-water congeneric species.

Furthermore, the current geographical distribution of Hamigera, being only present in the Mediterranean and Pacific areas, might suggest a Tethyan affinity of H. bibiloniae sp. nov. proposing a potential role of deep-sea habitats as climatic refugees.

冷水珊瑚（CWC）是深海生物多样性的热点，但与其相关的动物区系仍然存在巨大的知识鸿沟。因此，CWC生态系统是发现新物种的理想环境。在这种情况下，已记录了世界上两足动物中与CWC相关的两种新的Hamigera（Demospongiae）：Hamigera bibiloniae sp.。十一月 来自布拉内斯峡谷（西北地中海）和哈米格拉kellyae sp。十一月 来自Clementsville Seamount（新西兰Macquire Ridge）。这两个物种都是先前受浅水限制的哈米格拉群岛的第一个深海记录，并且与其他物种在巨大的针叶大小上有很大不同，大多数是浅水同类物种的两倍。

此外，目前仅存在于地中海和太平洋地区的哈米格拉（Hamigera）地理分布可能暗示了H. bibiloniae sp。的特提斯亲和力。十一月 提出深海栖息地作为气候难民的潜在作用。