IUCN threat status:

Least Concern (LC)

Comprehensive Description

Read full entry


  Common names: chromis (English), damselfish (English), castañeta (Espanol), castañuela (Espanol)
Chromis atrilobata Gill, 1862

Scissortail chromis,     Scissortail damselfish

Body compressed, elongate, greatest body depth 2.3-3.7 in SL;  1 pair of nostrils; edge of bone under eye smooth; preopercle smooth or with occasional fine serrations; mouth small, protrusible, opens at front;  teeth in 2 rows, outer conical, larger; lower gill rakers 20-23; a single continuous dorsal fin, XII, 12-13; anal rays II, 10-12; pectoral rays 18-19; 2-3 short projecting spines at upper and lower base of tail fin; caudal fin forked, with sharp tips; scales large and rough; 20-21 lateral line scales; body scaled,  most of head scaled, basal parts of the median fins scaled; lateral line incomplete, ends under end of dorsal fin base.

Metallic grey with prominent white spot just below base of soft dorsal fin; each caudal fin lobe with intensely blackish streak, a blackish mark at base of pectoral fin.

Size: attains 13 cm.

A common species that forms large aggregations around rocky reefs.

Depth: 1-80 m.

Central Baja and the Gulf of California to northern Peru, and all the offshore islands except Clipperton.


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!