Odontanthias

White, William T., 2011, Odontanthias randalli n. sp., a new anthiine fish (Serranidae: Anthiinae) from Indonesia, Zootaxa 3015, pp. 21-28: 27

publication ID

http://doi.org/ 10.5281/zenodo.205614

publication LSID

lsid:zoobank.org:pub:8A2FB5CB-51D7-4561-BC83-741FACE16787

persistent identifier

http://treatment.plazi.org/id/03A087B4-FFF1-0B35-43B4-3B78FA4EF874

treatment provided by

Plazi

scientific name

Odontanthias
status

 

Key to species of Odontanthias  (adapted from Randall & Heemstra, 2006)

1 a. Dorsal soft rays 12–14; body depth 2.4–2.9 in SL............................................................ 2

1 b. Dorsal soft rays 15–19; body depth 1.9–2.4 in SL............................................................ 7

2 a. Third dorsal spine of adults longer than other dorsal spines (except females of some species); caudal fin emarginate, the fin length 2.5 –3.0 in SL................................................................................... 3

2 b. Third dorsal spine not longer than other dorsal spines; caudal fin lunate, with filamentous lobes, 1.2–2.5 in SL........... 6

3 a. Dorsal soft rays 12–13; lateral-line scales 30–33; base of caudal fin with a black bar, often bordered with white...................................................................................... O. rhodopeplus  ( Japan to India)

3 b. Dorsal soft rays 14; lateral-line scales 35–44; no black bar at base of caudal fin..................................... 4

4 a. Spine at angle of preopercle long, reaching edge of subopercle; pectoral rays 16; broad submarginal blackish band in soft por- tion of dorsal fin; no black band or spots on membrane of third dorsal spine.............. O. grahami  (New South Wales)

4 b. Spine at angle of preopercle reaching only about halfway to edge of subopercle; pectoral rays 18–19; no blackish band in soft portion of dorsal fin; slender black band in distal part of membrane of third dorsal spine............................. 5

5 a. Lateral-line scales 44; body depth 2.6–2.7 in SL........................... O. dorsomaculatus  (Western Indian Ocean)

5 b. Lateral-line scales 34–38; body depth 2.35–2.6 in SL.......................... O. unimaculatus  ( Japan to Philippines)

6 a. Lateral-line scales 38–42; gill rakers 44–47; caudal fin very lunate with long filamentous lobes, the fin length 1.15–1.4 in SL; pelvic fins very long and filamentous, 1.95–2.5 in SL; large brown area posteriorly on body between soft portions of dorsal and anal fins and on anterior half of caudal peduncle, remainder white............................ O. elizabethae  (Hawaii)

6 b. Lateral-line scales 46–51; gill rakers 37–41; caudal fin not very lunate, the fin length 1.9–2.7 in SL; pelvic fins not very long, 3.5–4.2 in SL; colour not as above, males with a dark brown blotch covering most of caudal-fin base.................................................................................................. O. caudicinctus  (east Africa)

7 a. Third dorsal spine extremely elongate, 1.25–2.4 in SL........................................... O. flagris  ( Japan)

7 b. Third dorsal spine not extremely elongate,> 3.4 in SL......................................................... 8

8 a. Third dorsal spine not longer than other dorsal spines......................................................... 9

8 b. Third dorsal spine longer than other dorsal spines (except in females of O. borbonius  ).............................. 11

9 a. Caudal fin with very long caudal lobes, the fin length 1.2–1.6 in SL; gill rakers 42–47 ............ O. tapui  (Pacific Islands)

9 b. Caudal fin without very long caudal lobes, the fin length 2.1–2.95 in SL; gill rakers 39–43 .......................... 10

10 a. Caudal-fin mainly yellow; caudal-fin lobes tapering and not broad, the fin length 2.1–2.35 in SL; mandible fully scaled; scales dorsally on snout ending at line joining anterior nostrils; filamentous second pelvic ray long, 2.7–3.15 in SL; lateral-line scales 36–38 ......................................................................... O. chrysostictus  ( Indonesia)

10 b. Caudal-fin mainly red; caudal-fin lobes broad and not tapering, the fin length 2.6–2.95 in SL; mandible scaled forward to sec- ond mandibular pore; scales dorsally on snout nearly reaching base of upper lip; filamentous second pelvic ray extremely long, 1.7–2.05 in SL; lateral-line scales 38–42 .............................. O. katayamai  (Mariana Is., Japan and Taiwan)

11 a. Caudal-fin lobes not tapering, broadly rounded and paddle-like, the fin length 2.4–2.8 in SL; lateral-line scales 42–47 .......................................................................... O. fuscipinnis  (Hawaii and Johnston Is.)

11 b. Caudal-fin lobes tapering, not broadly rounded and paddle-like, the fin length 1.2–2.55 in SL; lateral-line scales 37–43 ... 12

12 a. Body depth 1.9–2.25 in SL; dorsal soft rays 16–18 (strongly modal at 17); pink to red with 9–11 distinct dark brown or yellow blotches, most larger than eye; a broad yellow band from front of snout to base of pectoral fin......................................................................................... O. borbonius  (east Africa to western Pacific)

12 b. Body depth 2.2–2.5 in SL; dorsal soft rays 16–17 (rarely 17); colour not as above................................. 13

13 a. Second dorsal ray longest, 1.5 in head length; lateral-line scales 42; colour pinkish with a large yellow area on body above pec- toral fins....................................................................... O. wassi  ( American Samoa)

13 b. Third dorsal ray longest, very elongate, 0.7–1.1 in head length; lateral-line scales 37; colour pinkish with numerous yellow spots on dorsal half of body and yellow stripes on head................................. O. randalli  n. sp. ( Indonesia)