Chlidichthys abruptus, or St Brandon's dottyback, is a species of fish in the family Pseudochromidae.

Chlidichthys abruptus is a small-sized fish which grows up to 4.7 cm (1.9 in).

[1] Chlidichthys abruptus is endemic to an archipelago called the Cargados Carajos Shoals in the Indian Ocean.

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