According to the Facebook page of the HK Juvenile Horseshoe Crab Rearing Programme, juvenile mangrove horseshoe crabs (Carcinoscorpius rotundicauda) were found at Tai Tam during this years HK Bioblitz programme. It is the First record of this species after many years of absence.
A BioBlitz is an intense period of biological surveying in an attempt to record all the living species within a designated area. Groups of scientists, naturalists and volunteers conduct an intensive field study over a continuous time period (e.g., usually 24 hours). This years HK BioBlitz was held at Tai Tam.