Pycnochromis dimidiatus, commonly known as the chocolatedip chromis[1] or Red Sea half-and-half chromis, is a species of chromine damselfish in the genus Pycnochromis.

It is endemic to the Red Sea, where individuals prefer to live on reefs from depths of 1–36 m (3.3–118.1 ft).

[1] It was described by Carl Benjamin Klunzinger in 1871.

[2] It resembles several other species of the genus Pycnochromis, such as P. iomelas, P. fieldi (which was described for populations of P. dimidiata outside the red sea),[3] P. hanui, P. margaritifer, and P. bami.

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