Hirundichthys speculiger

Common Name

Mirrorwing Flyingfish

Year Described

Valenciennes, 1846


Dorsal Fin: 10-13
Anal Fin: 11-13
Pectoral Fin: 17-20
Gill Rakers: 21-29 (first arch)
Predorsal Scales: 28-33
Transverse Scale Rows: 5-7
Vertebrae: 45-47

Body elongate with a rectangular cross-section. Head length 3.9-4.2 in SL. Eye diameter 2.9-3.3 in HL. Jaw teeth conspicuous and conical. Lower and upper jaw almost equal in length. Palatine teeth present. Pectoral fins long (1.4-1.5 in SL), with first ray unbranched, fin reaching to caudal fin base. Pelvic fins long (3.5-3.8 in SL), reaching well beyond anal fin origin, with pelvic origin nearer to anal fin than pectoral fin base. Dorsal fin low (longest ray more than 10 times in SL). Origin of anal fin slightly ahead of, equal with, or slightly behind (under 1st-2nd ray) dorsal fin. Caudal fin forked with the lower lobe longer than upper. Lateral line low on side. Pectoral branch of lateral line absent. Juveniles with enlarged pelvic fins and no chin barbel(s).


Dark blue-gray above, abruptly paler below. Pectoral fin dark gray with a triangular pale crossband and a thick pale outer margin. Dorsal and caudal fins gray. Anal fin transparent. Pelvic fin pale. Juveniles with mottled fins.


Maximum size to 25cm SL.


Pelagic over deep waters far from shore. Zooplanktivorous with demersal eggs.


Oceanic: between 40°N and 39°S in the open Atlantic and eastern Caribbean. Not found in the western Caribbean or Gulf of Mexico.


Parin, N.V. 2002. Exocoetidae (pp 1116-1134). In: Carpenter. 2002. The living marine resources of the Western Central Atlantic. Vol. 2: Bony fishes part 1 (Acipenseridae-Grammatidae). FAO Species Identification Guides for Fisheries Purposes. American Society of Ichthyologists and Herpetologists Special Publication No. 5.