chrysipteracaesifrons是本周的第一个新的礁鱼，也是我们最喜欢的豆类雌犬属，但还有另一种鱼类。来自西太平洋，新的C. caesifronsis found in Papua New Guinea, Solomon Islands, New Caledonia and Northern Australia and it begins to be replaced with two similar lookingchrysipteraspecies in the greater Indo-Pacific region.
新的C. caesifrons可以在东部到达Raja Ampat，但开始被它代替Chrysiptera Rexfor most of Indonesia to the West. Meanwhile, to the north in the Phillipines and Southeast Asia this species ‘complex’ is represented bychrysiptera chrysocephala.
All three species look somewhat similar underwater but they are geographically separated, and close inspection reveals that these fish are indeed distinct from each other. Chrysiptera chrysocephala is easily distinguished by having an overall yellow head on a paler body, whereas C. caesifrons has a blueish-grey forehead that extends over much of the top of the body. The most variable of the three species isChrysiptera Rexwho’s blueish color is restricted to being just on the face. [JSOF]
