Scientific Name
Archamia macroptera
Common Name
Dusky-tailed cardinalfish
Biology
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 9;
Anal
spines: 2;
Anal
soft rays: 13 - 15. Diagnosis: Rays: dorsal VI + I,9; anal II,13-15; pectoral rays 14 (rarely 13 or 15). Gill rakers 5-6 + 15-17. Lateral-line scales 25+3-5. Median predorsal scales 5-7. Body depth 2.4-2.7 in SL; body width 2.3-2.6 in body depth; eye diameter 2.55-3.0 in head length; first dorsal spine 2.0-2.9 in second spine; second dorsal spine 2.3-2.9, and third dorsal spine 2.4-2.8 in head length; spine of second dorsal fin 2.3-2.8, and second anal spine 2.6-3.2 in head length; pelvic-fin length 4.5-5.15 and caudal-peduncle length 4.3-5.4 in SL; distance from insertion of pelvic spine to anal-fin origin 3.8-4.8 in SL. Basilingual teeth absent. Posterior preopercular edge completely serrate, or nearly so; ventral edge serrate on posterior half. Scaly sheath along anal-fin base poorly developed or absent (Ref. 54391).