Apogon gouldi

FamilyScientific NameAuthorYearCommon Name
ApogonidaeApogon gouldiSmith-Vaniz1977Deepwater Cardinalfish

Apogon gouldi

Unique Characters: Scales on body ctenoid. Median predorsal scales present;. Posterior margin of preopercle serrate. Pectoral-fin soft rays 11 or 12 (rarely 13). Membraneous ventral preopercular flap not extending beyond posterior preopercle edge. Inner pelvic-fin ray mostly free from body. Segmented anal-fin rays 8. No large caniniform teeth; teeth in both jaws villiform, in a polyserial band of varying width. Dark bar/saddle below second dorsal-fin base or just behind it; no dark spot or stripe on opercle.

Similar Species:

Flamefish
Apogon maculatus

Twospot Cardinalfish
Apogon pseudomaculatus

Apogon pseudomaculatus
Twospot Cardinalfish – Apogon pseudomaculatus

Flamefish Apogon maculatus. Scales on body ctenoid. Median predorsal scales present;. Posterior margin of preopercle serrate. Pectoral-fin soft rays 11 or 12 (rarely 13). Membraneous ventral preopercular flap not extending beyond posterior preopercle edge. Inner pelvic-fin ray mostly free from body. Segmented anal-fin rays 8. No large caniniform teeth; teeth in both jaws villiform, in a polyserial band of varying width. Dark pupil-size spot below posterior part of second dorsal-fin base; dusky to dark spot or stripe on opercle at level of middle of eye. Scales around caudal peduncle 17-20. Dark caudal spot/saddle large, extending ventrally well below lateral line; dark stripe or spot on opercle edged in white above and below (may not show in preservative).

Twospot Cardinalfish Apogon pseudomaculatus. Scales on body ctenoid. Median predorsal scales present;. Posterior margin of preopercle serrate. Pectoral-fin soft rays 11 or 12 (rarely 13). Membraneous ventral preopercular flap not extending beyond posterior preopercle edge. Inner pelvic-fin ray mostly free from body. Segmented anal-fin rays 8. No large caniniform teeth; teeth in both jaws villiform, in a polyserial band of varying width. Dark pupil-size spot below posterior part of second dorsal-fin base; dusky to dark spot or stripe on opercle at level of middle of eye. Scales around caudal peduncle 14-16. Dark caudal spot about pupil-size, placed mostly above lateral line; dark spot on opercle not edged in white.

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