cardinalfish,cardinalnumeral

toothy cardinalfish (cheilodipterus isostigmus) adult, swimming
cardinalfish 或 apogonichthyoides 尼日尔鱼
今日--单线锯天竺鲷(eyeshadow cardinalfish)
the banggai cardinalfish - natural history, conservation, and
cardinalfish. credit: jens petersen/cc-by-3.