Comprehensive DescriptionRead full entry
| Common names: damselfish (English), castañuela (Espanol) |
Azurina hirundo Jordan & McGregor in Jordan & Evermann, 1898
Body slender (greatest body depth 25-33% of SL), fusiform, compressed; head pointed, upper and lower profiles similar; 1 pair of nostrils; bone under eye hidden by scales; mouth small, protrusible, slightly oblique, opens at front; teeth in 2 rows, outer row conical; lower gill rakers 25-27; a single continuous dorsal fin, XII, 10-12; anal rays II, 11-12; dorsal and anal fins relatively low; pectoral rays 20-21; no projecting short spines at upper and lower base of tail fin; caudal fin strongly forked; scales are moderately large and rough; 27-31 scales in lateral series; body scaled, head scaled except for area in front of eye and around nostril; basal parts of the median fins scaled; lateral line almost complete, runs along top of tail base almost to tail fin.
Steel blue to olive on upper portion and paler below with orange hue on throat.
Size: reaches 17 cm.
Habitat: in open waters around rocky reefs.
Depth: 5-30 m?
Southern California, Guadalupe Island, Alijos Rocks, the Revillagigedo Islands.