Lutjanus xanthopinnis Iwatsuki, Tanaka & Allen, 2015
Yellowfin snapper
Lutjanus xanthopinnis
photo by Allen, G.R.

Family:  Lutjanidae (Snappers), subfamily: Lutjaninae
Max. size:  19.2 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 5 - 90 m
Distribution:  Indo-West Pacific, Indian Ocean (the Andaman Sea, western Thailand and Sri Lanka) to Papua New Guinea and the East Indies; north to Japan; south to Indonesia.
Diagnosis:  Dorsal spines (total): 10-10; Dorsal soft rays (total): 13-13; Anal spines: 3-3; Anal soft rays: 8-8. This species is distinguished by the following set of characters: D X,13; A III,8; pectoral-fin rays often 16-17; lateral-line scales 48-50: horizontal scale rows above lateral line 5-6; scale rows on cheek 4-5; preopercular flange with several embedded scales; gill rakers on first arch 7-8 (6–7 rudiments) + 14-15 (4?5 rudiments), total gill rakers 22-23 (including rudiments); a pair of small rounded to elliptical nostrils on each side of snout, no conspicuous flap on outer edge of either nostril; predorsal scales extend forward to middle of interorbital. Colouration: below lateral line of the body are thin yellow to brownish stripes, adults with relatively uniform width stripes or at most, a more prominent slightly wider stripe from behind the eye to the upper caudal peduncle, occupying a single scale row and well less than half pupil width (vs, juveniles may have a wider lateral stripe); fins are mostly yellow (Ref. 106991).
Biology:  Adults inhabit coral and rocky reefs (Ref. 55) in coastal areas and outer slopes. Forms large and small aggregations (Ref. 90102).
IUCN Red List Status: Data deficient (DD); Date assessed: 28 June 2018 Ref. (130435)
Threat to humans:  harmless


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