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Polysteganus flavodorsalis Iwatsuki & Heemstra, 2015 |
| Family: | Sparidae (Porgies) | |||
| Max. size: | 26.5 cm SL (male/unsexed) | |||
| Environment: | reef-associated; marine; depth range 214 - 305 m | |||
| Distribution: | Western Indian Ocean: Cargados Carajos and Mascarene Plateau, Nazareth Bank. | |||
| Diagnosis: | Dorsal spines (total): 12-12; Dorsal soft rays (total): 10-10; Anal spines: 3-3; Anal soft rays: 8-8. This species is distinguished from its congeners by the following set of characters: scale rows above lateral line 6.5 and between 5th dorsal-fin spine base and lateral line 5½; pored lateral line scales 52- 53; suborbital depth obviously less than the orbit diameter (OD), 72-75% (mean 74%) of OD; dorsal-fin rays are reddish pink with bright yellow margin, anal-fin rays pinkish; no obvious lines of blue spots on body, but usually a blue iridescence in each body scale around dorsal and lateral sides of body from some angles; yellow and red membranes only on upper and lower caudal-fin lobes, respectively (these 2 colors are strongly contrasted; somewhat deeper body, 39-43 (mean 41%) of SL; without bony bulge before and above eye; its caudal fin moderately forked (Ref. 106993). | |||
| Biology: | ||||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 13 August 2019 Ref. (130435) | |||
| Threat to humans: | harmless | |||