• Location: Romblon Island

  • Depth: shallow / medium depth

  • Cover Photo: Lenny Kim

  • Scientific Name: Costasiella usagi, Ichikawa, 1993

Costasiella usagi was named after the Japanese word for rabbit: Usagi. The cerata of this species have thin white lines and a white tip often ending in a dark spot. These small critters are famous for their cute appearance and are a favorite subject for underwater macro photographers.