Pictichromis paccagnellorum

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Pictichromis paccagnellorum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Family: Pseudochromidae
Genus: Pictichromis
P. paccagnellae
Binomial name
Pictichromis paccagnellae
(Axelrod, 1973)

Pseudochromis paccagnellae Axelrod, 1973

The royal dottyback (Pictichromis paccagnellorum),[3] also called the bicolor dottyback, gramma dotty or false gramma is a fish commonly kept in marine aquariums. The front of the fish is bright purple and the posterior is yellow. In an aquarium, it will grow up to three inches long. The dottyback will defend its territory against fish several times its size, but gets along with many other common aquarium fish. It is sometimes mistaken for a royal gramma (Gramma loreto).

The specific name honours the Paccagnella family of Bologna who were wholesalers of aquarium fish and who gave the type to the author, Herbert R. Axelrod.[4]

It can grow up to 6 cm in length.


  1. ^ Smith-Vaniz, W.F. (2017) [errata version of 2016 assessment]. "Pictichromis paccagnellae". IUCN Red List of Threatened Species. 2016: e.T69583393A115464927. doi:10.2305/IUCN.UK.2016-3.RLTS.T69583393A69583509.en.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2018). "Pictichromis paccagnellae" in FishBase. June 2018 version.
  3. ^ "Pictichromis paccagnellorum". WoRMS.
  4. ^ Christopher Scharpf & Kenneth J. Lazara (30 April 2018). "Subseries OVALENTARIA (Incertae sedis): Family PSEUDOCHROMIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 21 October 2018.

Gill, A. C. 2004 (3 June) Revision of the Indo-Pacific dottyback fish subfamily Pseudochrominae (Perciformes: Pseudochromidae). Smithiana Monographs No. 1: 1–213, Pls. 1-12.

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