Dr. John Ernest (Jack) Randall (†), Hawaii
Info
The small cardinalfish Siphamia spinicola occurs in groups, in sheltered bays and lagoons, sometimes in association with Seriatopora corals, the crown-of-thorns starfish Acanthaster plancki or Diadema sea urchins.
Among the spines of diadem sea urchins, various cardinalfish seek shelter from predators.
The cardinalfish has a greenish-gray coloration with a narrow back, on the tops of the body there is a large black area divided by a white stripe at the back and shimmering silvery over the abdominal region and the lower part of the head.
Unfortunately we have to owe photos of a living cardinalfish.
For those interested in cardinalfishes we recommend the free download of the book "Cardinalfishes of the World" by Rudie H. Kuiter:
https://reefbuilders.com/2019/09/16/cardinalfish-book-identification/
Among the spines of diadem sea urchins, various cardinalfish seek shelter from predators.
The cardinalfish has a greenish-gray coloration with a narrow back, on the tops of the body there is a large black area divided by a white stripe at the back and shimmering silvery over the abdominal region and the lower part of the head.
Unfortunately we have to owe photos of a living cardinalfish.
For those interested in cardinalfishes we recommend the free download of the book "Cardinalfishes of the World" by Rudie H. Kuiter:
https://reefbuilders.com/2019/09/16/cardinalfish-book-identification/
