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At the beginning of 2023 a new butterflyfish was first described and named Coradion calendula.
You have to look very closely to see the differences from the very similar species Coradion chrysozonus.
Coradion chrysozonus, widely distributed in the eastern Indian Ocean and western Pacific Oceans, occurs sympatrically (at similar depths) with Coradion calendula in the Torres Strait area.
Basic color of head and body is white, center of body scales is bright yellow.
The ventral and dorsal margins of the butterflyfish are white.
The sides of the head and body have four vertically running bands, the foremost band is brown with narrow blackish edges, saddling the nape of the neck and extending almost to the base of the dorsal fin (anterior and lateral views), descending ventrally through the eye.
Two other, thicker bands run vertically, more or less, centrally through the body from the back to the belly of the animal.
This is joined by an even wider, gold-colored bar with a black, gold-rimmed eye patch below the dorsum.
The base of the tail is also golden, and this is joined by the whitish translucent caudal fin.
Etymology.
The specific name "calendula" is treated as an appositional noun and is the generic name of plants in the composite family (Asteraceae) (often called marigolds), in allusion to the characteristic orange band on the caudal peduncle of the new species.
Literature reference:
Autiors: Matsunuma, M., Matsumoto, T., Motomura, H., Seah, Y.G. & Jaafar, T.N.A.M. (2023).
Coradion calendula, a new butterflyfish from Australia (Teleostei: Chaetodontidae).
Journal of the Ocean Science Foundation, 40, 1-28.
doi: https://doi.org/10.5281/zenodo.7504828
urn:lsid:zoobank.org:pub:B25C75A0-221C-43F0-B575-FF3276F967CA
You have to look very closely to see the differences from the very similar species Coradion chrysozonus.
Coradion chrysozonus, widely distributed in the eastern Indian Ocean and western Pacific Oceans, occurs sympatrically (at similar depths) with Coradion calendula in the Torres Strait area.
Basic color of head and body is white, center of body scales is bright yellow.
The ventral and dorsal margins of the butterflyfish are white.
The sides of the head and body have four vertically running bands, the foremost band is brown with narrow blackish edges, saddling the nape of the neck and extending almost to the base of the dorsal fin (anterior and lateral views), descending ventrally through the eye.
Two other, thicker bands run vertically, more or less, centrally through the body from the back to the belly of the animal.
This is joined by an even wider, gold-colored bar with a black, gold-rimmed eye patch below the dorsum.
The base of the tail is also golden, and this is joined by the whitish translucent caudal fin.
Etymology.
The specific name "calendula" is treated as an appositional noun and is the generic name of plants in the composite family (Asteraceae) (often called marigolds), in allusion to the characteristic orange band on the caudal peduncle of the new species.
Literature reference:
Autiors: Matsunuma, M., Matsumoto, T., Motomura, H., Seah, Y.G. & Jaafar, T.N.A.M. (2023).
Coradion calendula, a new butterflyfish from Australia (Teleostei: Chaetodontidae).
Journal of the Ocean Science Foundation, 40, 1-28.
doi: https://doi.org/10.5281/zenodo.7504828
urn:lsid:zoobank.org:pub:B25C75A0-221C-43F0-B575-FF3276F967CA